I could listen to that bridgeport idle all day

@RADPotential

3 жыл бұрын

Me too

@Sir.Munoz.1117

3 жыл бұрын

Almost want to get a ring tone of this

@lawrencemckane8807

2 жыл бұрын

You do, until you try and daily one in heavy traffic lol it's a beautiful note though

@philiphapeshis1226

Жыл бұрын

Me too I so want one in my. 87 b 2000.

I'd take the 12a. In my biased opinion, because i've owned 4 of them lol

i wanna see a transmission video. Pulling Mouse's trans, and taking it apart to see what happened. loving the channel

@RADPotential

3 жыл бұрын

I can do that!

@nickbetegh3649

3 жыл бұрын

I noticed that you’re stuck in 3rd gear. Same happened to us driving an endurance race. They are not worth rebuilding because more modern Miata transmissions with slight modifications will work better. I wound up installing a turbo tranny and made a custom dive shaft. Also, in road racing, using 15” wheels we don’t use 5th and 4th only got occasional duty so we installed a 4:77 diff. Now the car accelerates better and use all gears. Any comments are welcome.

@bruizey7319

3 жыл бұрын

For the record, very common problem with selectors wearing out, have fixed mine by filling the groove with weld and filing them flat again.

@overbuiltautomotive1299

2 жыл бұрын

@@bruizey7319 sounds right good job

@davidvaughn7778

Жыл бұрын

@@nickbetegh3649 I've never raced, but I would think you'd want to shift less for a faster time. Which do you prefer and why? If you don't mind me asking.

Haha, my old S1 RX7 used to get stuck in gear like yours did. It was actually easy to fix it was just a small plastic cup/bushing on the bottom of the gear shifter where it sits in the linkage/selector. It's a common issue they wear out easily. May not be the same with your's. But you might want to pull the shifter out and check out the mechanism.

12a Bridgey is my weapon of choice. Well done!

@RADPotential

3 жыл бұрын

Thanks man!!!

Man, This channel is so down to earth and awesome to watch. Some of the best content on there. Cheers.

Had the 13b turbo and port together and loved every min of it

Great video I like the comparison!

@RADPotential

3 жыл бұрын

Thank you sir!!! Gonna need one of those fresh camo hats you got now. been wearing my gray one out haha

Love the rays shirt! Been working there since i was 17.

1) Bridgeport idle 2) I don't care for that the turbo sounds. This is just a me thing, but I've always been more accustomed to superchargers... 3) hours/days/weekends/months for an engine swap to get the same horsepower as a Dremel would get you in a period of a day (if you know what you're doing). Also just a me thing, the 12As are cooler because everybody swaps out to a 13B anymore. And I get it, it's done for the aftermarket support, but for me? I don't need 400+ hp. An FB RX7 is my DREAM car and dream cars are not exactly things you want to wreck. Bring that 12A up from the stock 108hp to the 200-250 ballpark via intake, exhaust and some porting and you have a car that will be PLENTY of fun while not being too inherently dangerous. Hell, even 140 would be plenty fun. My Escort ZX2 had 138hp for a 2400 pound car and that thing was FUN, RX7 would be even more fun just due to rear wheel drive. NOT DANGEROUS, but FUN! You don't need exorbitant power for the streets.

Alot closer than I anticipated! With such a large arsenal of rx7s and engines in the shop have you had any consideration of doing a full PP na setup? That would be a super enjoyable series to watch

@RADPotential

3 жыл бұрын

If I can convince a friend of mine to let me raid the super secret parts stash. That might just happen

Great vid mate!

great video.miss my 86 and 88 would have loved my t2 motor in a 79-85

Cool video bro!

gotta get that pinion swapped out with Kia sportage front diff.

i watch these all days as if im gonna ever have the money lol

Hey you might be from my home town. Dad picked up a 1985 GSL-SE this weekend. I should be coming up to pick it up soon. Will have to pick you brain on these suckers :)

Brrrrahh Brrrahh Brrrrahh Brrrrrahh Brrrahh. I can listen to that all day. Thank you

Realy cool bro keep the good work

@RADPotential

3 жыл бұрын

Thanks man!!!

Very cool comparison and video. I'd go for the white car, stock interior and better for day to day driving.

@RADPotential

3 жыл бұрын

Haha!!! I could definitely agree. It's got its perks being quiet and smooth for sure

Love both cars bro❤🙏🏼🙏🏼👍👍👍🔥

SWWWWWWEEEEEEEEEEET I can't wait for my mini to get out the body shop.. 300 or so hp n fully done up..I can't wait to make some vids of it all done

That n/a top end!

Steering wheel mounted go-pro really shows the difference between rack and pinion and recirculating ball steering in a straight line :-D

@RADPotential

3 жыл бұрын

Haha right though!!! ✅

Awesome comparison video! Very well explained without any fluff or lame music....well done! BTW; what do you think is the best year trans for a street ported 12a? It's in my '72 Triumph Spitfire.

@RADPotential

Жыл бұрын

Thank you sir! How much RPM are you spinning? what year trans is in it currently?

Dudes making me wanna pick up a project rx for a little bit of a challenge

@RADPotential

3 жыл бұрын

Get one man!! Great cars for the money! Easy to work on!!

i love more silent braps , or more stock is my preferance

Nice cars !!

Let me get the link to that walk around on the 13b front sub frame

Awesome video like always! But was wondering to turbo a 12a or 13b swap pros an cons video maybe??

@RADPotential

3 жыл бұрын

I can make a video. But I have never done a turbo 12a myself

@outcrawling8283

3 жыл бұрын

I'd be very interested in a video like that

How much do you think a 12a rebuild would cost if I did the labor myself?

team all motor for sure, dont use boost to make power if you dont have to. but damn i love the sounds from the turbo car lol. could we get a clip of it running with no bov? i bet it would sound awesome.

Yes more rotary!!!!!

Love the video man. I think I’m definitely a full bridge kinda guy, loved the sound. Also where the hell do you find a repu? I’ve tried looking online but haven’t seen anything, how much do they even cost haha

@RADPotential

3 жыл бұрын

They are super rare, and when you do find them they are rough. Rusty. I got mine from Louisiana 5 years ago

@ThreeDaysOfDan

3 жыл бұрын

@@RADPotential not so rare in cali, but go for around 15-20,000$ in "fair" shape

My driver is a stock 85 GSL-SE, 190,000 miles, still runs great. Only problem is my heater core started leaking. Bypassed it but huge mess on the pass. side floor. Have to figure out if I can pull the dash to r&r it.

@RADPotential

3 жыл бұрын

Heck yea man!! I have done a heater core or 2 in my day and that's not fun!!

Would also love to see a bridge porting tutorial vid. Did you balance and clearance your rotors for that build?

@RADPotential

3 жыл бұрын

Nope. Just a bridge. I have a bridgeport porting video on an S5 FC. If you look back on the channel. It's a white t2

@MisterSprocket16

3 жыл бұрын

Thanks!

My fun car is a 1984 Mazda RX-7 GS (12A) Auto Trans 101 horses unmodified. I love this car. She needs pads & rotors (I might replace myself). Any suggestions?

@RADPotential

3 жыл бұрын

I would find some stock replacements, or get a set of blank rotors from R1 concepts/some other aftermarket supplier. I would stick with street pads. no sense if its just a stock car. Be aware for the front rotors you will have to have new wheel bearings installed into those rotors if they do not come with the races installed.

I love the silver one.

Hey man, I just got a 12a swapped miata. Your videos are a huge help, is there any way I could ask you some questions?

@RADPotential

3 жыл бұрын

Yea man. Shoot me a message on Instagram

Wondering if you could post a short video of the sound of the fuel pump. I have an 85 12a gsl that seens to run out of fuel in the carb towards the end of 3rd gear. Previous owner put a new pump in but it doesnt sound like a normal pump whine. I can tap the key to start and hear the pump make more of a clicking noise for a second. Are the factory pumps good enough for a bridgeport or do i need to change it?

@RADPotential

3 жыл бұрын

Id switch to a rotary vein style. Not a pulse style like the oem one. If you have a holley their holley blue pump would work, if you have a weber try a Carter pump I think its the 4070

Dude you can fit 235/45/13s easy in the rear on a 8 inch rim, I have bolt on flares on my s1 rx7 but no guard work done, nankang ar-1s semi slicks they are hell cheap! Get some, the grip is unreal!

It's funny because both your cars would be faster if you swaped trans and rearends with each other. The turbo would benefit from longer gears, and the mouse could use the shorter gears. Oh and I would take that bridgeport personally. It sounds dope.

Build a turbo one and have a recorded bridgeport idle sound that plays at stop lights :-)

That sound A12A produces is intoxicating

@RADPotential

3 жыл бұрын

Best stop light presence ever

Is there any chance we'll see 12a turbo conversion content at some point? It would certainly be a larger project, but like you said, turbo 2 engines are becoming cost prohibitive and some of us just have a weird liking for the 12a

@RADPotential

3 жыл бұрын

I could do a 12a turbo, but its a pretty simple idea. Just smaller exhaust manifold and run an efi setup for the 12a

@TotemTom

3 жыл бұрын

@@RADPotential I'd love to see it. I've been sourcing fc parts to eventually go EFI, but the stumbling block continues to be finding an intake/throttle body setup that doesn't break the bank

@ThreeDaysOfDan

3 жыл бұрын

12a's are becoming expensive too , in the long run a TII set up is worth it because 13 b parts are cheap af compared to 12A's

Would you consider a 12a housing and rotor hybrid with the Renesis large exhaust port plates build.¿

@RADPotential

3 жыл бұрын

That could work. Custom header. Would probably make some cool noise

@vinniesmith7455

3 жыл бұрын

Hell yeah seen a first gen and been thinking about it ... but the engine was a running block a few months ago so I’m like would it be worth it? Since the car was running and running 12a can go up to 5k in VA and Cali .... hmmmmmmmmmmmmm only reason I ask is because I own an 8 And doing a build on the side to swop into the car that’s already a running block and trying to think of another decent project ..... it would be interesting .... do you have an Instagram?

@vinniesmith7455

3 жыл бұрын

If so my instagrams zuruikitsune_rx8

How about the FD transmission on the 12A. Seems like a good initial combo for the RX-3 SP that I have

@RADPotential

3 жыл бұрын

That would work. The pull style clutch is somewhat of a pain but not hard

@jdmimportlogistics

3 жыл бұрын

@@RADPotential Would love to see you get a turbo set-up from a 1st gen. GSL (from OZ or 🗾) and see the whole process. I know someone that can make cold forged high or low compression rotors just let me know!

@jdmimportlogistics

3 жыл бұрын

@GbbJunkie Yes! Still running trials and accumulating data though. Hot forged to start and then eventually moving to cold forged. Could be a game changer for all of us 12A afficinados.

@ThreeDaysOfDan

3 жыл бұрын

@GbbJunkie people already make housings, just expect to pay upwards of 10,000$ on an engine.

Can you do a vid on timing. I have a 13B street port with a weber that I'm trying to tune and wonder how you set the timing and tune it.

@RADPotential

3 жыл бұрын

Videos are already made!! Look up 12a and 13b electronic ignition setup

@pauls3585

3 жыл бұрын

@@RADPotential okay, I'll have a look

@pauls3585

3 жыл бұрын

@@RADPotential Okay, I'll have a look

I think if gearing was equal. I think it would have been closer. In an sa/fb I personally go 12a. The classic 12a sound belongs with them.

@RADPotential

3 жыл бұрын

Yea I agree. You can really tell the gearing differences. I'll work on that and come back to it. I'd love to do a stock 12a vs bridge 12a comparison soon

@jimlynch5776

3 жыл бұрын

@@RADPotential That would be a good comparison.

What if... You put a K03 turbo on a stock 12A? 🤔 Certainly you can reach 200-250bhp on it at a relatively low cost and get some quite good torque across a wide RPM range.

@RADPotential

3 жыл бұрын

I would love to boost a 12a just to say I have done it. But maybe once I have EFI on this one lol

Hey rad have you considered putting a holly efi sniper kit on anything. I thought I heard you mention it in one of your videos.

@RADPotential

3 жыл бұрын

I am doing the install in a month. I have another car scheduled to come through stock 12a. 2 barrel sniper

@joe44510

3 жыл бұрын

Can't wait to watch that episode! Thanks for the response!

I might sound stupid in saying this but is it possible to turbo charge a bridge port 12a

@RADPotential

2 жыл бұрын

Yep!!!

Can you do a video on mixing a rx8 engine with a gsl-se engine. That combo is suppose to bw killer with more exhaust flow. Also pp port video, for example is it possible to semi pp port a 6 port 13b???

@RADPotential

3 жыл бұрын

Sure. I can give some thoughts.

@HotGritz910

3 жыл бұрын

@@RADPotential all good! Im currently building a 84 gsl-se into a track day toy..wide body, gutted...etc. im in-between getting rid of the stock injection and adding a webber....always decisions! Keep up the RAD Work!💪

@RADPotential

3 жыл бұрын

Thanks man!!!

@fastec5

3 жыл бұрын

That's a dream engine for my FB. Mazdatrix used a similar setup in their old RX8 racecar with a turbo. Put down consistent 450whp+ and like mid 300's for tq. But I want NA. It would be so sick.

What state you guys from

I’d take the T2 for the street, bridgy 12A for race as that’s what regs allow in most UK series!

@RADPotential

3 жыл бұрын

Heck yea man!! It's crazy how close they are!!

Bridgeport baby, need those braps

@RADPotential

3 жыл бұрын

Gotta put those mustang's tails between their legs at stoplights haha

Do you have a video of how to do a 13b turbo2 sawp on an fb??

@RADPotential

3 жыл бұрын

I have a video on how to do a 13b swap. The efi and stuff will be additional

Not a rotary guy but that N/A one def looks like more fun. N/A always is a blast to drive. Can you boost the bridge port motor?

@RADPotential

2 жыл бұрын

O yea. You can boost a ported engine all day!!

@chevy6794

2 жыл бұрын

@@RADPotential I’m guessing it would destroy that other one after that? In the piston world the artificial displacement motor almost always wins for a lot less money but it seems not so with rotarys? Sounds like it’s running out of breath up top? But if you boost it can you rev it higher without hurting it? Is there anything you should do with a booster motor or is set up the same? Sorry for the ignorance but I know very little about killer Doritos.

@RADPotential

2 жыл бұрын

In the rotary world, the more air you can get the better. that Bridgeport pulls much harder 7K RPM plus than the non ported smaller turbo engine. now if you put a bigger turbo on the stock engine, then yes, it will pull harder up top. With boost its a balance of porting and turbo selection to achieve your power goal IMO, much like choosing a cam/heads for a piston engine to accompany a power adder. Going turbo lets you keep a small port(CAM) and make the power with extra boost. you can rev a boosted engine just as high as an NA engine if its balanced, and you have enough ignition to support the RPM.

@chevy6794

2 жыл бұрын

@@RADPotential cool. Thanks

nice motor bridgeport , color white😁

when my trans jammed and wouldnt get first or second it was just a roll pin sliding out of the selector fork

I will take the NA for that smooth smooth revving...

Awesome rx7

@RADPotential

3 жыл бұрын

thanks man!!

Im sure you've already gone over this, but what exhaust setup is on the silver car?

@RADPotential

2 жыл бұрын

It's a RB dual primary header to a y pipe into 2.5 inch. All the way to a 2.5 inch steel core packed muffler, 5 inch OD can. Much like the RB rotor muffler but super cheap. That's it.

@JoshRex7ven

2 жыл бұрын

@@RADPotential do the headers really change the sound that much? Im running the stock header 2.25 inch to a high flow cat, 2.5 all the way back to a steel packed magnaflow 4" round straight through. My car has way mellower tone than yours

@RADPotential

2 жыл бұрын

That cat convertor is what's doing it.

I’m a sucker for NA rotaries, just can’t beat their rev-happiness and instantaneous throttle response. I’m slowly piecing together bits for a semi p-port NA 13B. Hoping to make a high-revving 180-200hp street engine at the end of it all that I can swap into my car, once my dead-stock 200K mile 12A konks out - whenever that happens.

@RADPotential

3 жыл бұрын

haha that 12a wont quit. just dont ever take it apart.

@rucarnuts13

3 жыл бұрын

@@RADPotential - Compression is still strong and all! Gotta love 12A’s. I’ll strip it down when compression starts fading and probably give it a thorough going-over and rebuild to be my backup engine, but not until then.

I want a set of those wheels so bad

@RADPotential

3 жыл бұрын

Which ones?

I wish you guys would provide the link to the video you "point to" instead of hiding it inside a MOBILE specific format.... I only watch KZread via my Chromecast, and 98% of the time anyone says "link up here".... there's nothing, because it doesn't show anything, and if you don't put the same link in the description or comments, well, it's not there. Now that my rant is over, it's a tough call, I love both... and seeing neither are a Series 2 and I can't just pick that, if it was my only car, I'd take the turbo 13B, if it was my 2nd car, I'd take the Bridge seeing as I miss my own Bridged 12A on Webber's, Series 2 GSL in Havana Brown....God damnit I should've NEVER sold it.... I'll never get

what state do you live in by any chance?

@RADPotential

3 жыл бұрын

Tn

Is the white turbo car yours or did you borrow it?

@RADPotential

3 жыл бұрын

It's a local friend's car. Just borrowing it for a few weeks.

@jamesford3549

3 жыл бұрын

@@RADPotential nice reminds me of one of mine being white and on BBs wheels

@RADPotential

3 жыл бұрын

Those are BBS vert wheels cheap and sick haha!!! The SA look so good on them

@jamesford3549

3 жыл бұрын

@@RADPotential yeah nice set up. I have some 15x8 bbs rs reps, again cheap as haha

Bridgeport. All the way. I think. In my opinion. If you're going to have an Rx7. It should sound like that! 🇵🇷👍 Just awesome......

NA all day my vote is for the bridge port 12a

12a natural aspirated looks faster.

Im very lucky and happy to say my coworkers wife has a 1984 12a rx7 she got for 3200 and put 2000 in rims and tires. He wants to sell me her car, for cheap as a "fuck you" hahah. So im thinking trade out my mazda 3 2005.

What kind of gas mileage would you get on mouse?

@RADPotential

Жыл бұрын

20-23

@MINIPOTHOLES

Жыл бұрын

@@RADPotential mpg? Is that mixed Highway/city?

@RADPotential

Жыл бұрын

That would be my average mixed driving. Pulls here and there, and some highway. Driving out to the Tail of the Dragon, I got closer to 25 solely highway. Worst I ever saw was 12, running it hard hard

Are you going to deals gap?

@RADPotential

3 жыл бұрын

Unfortunately no, Justin is getting married that day

@kellinmcabee1343

3 жыл бұрын

@@RADPotential bummer.

Bridge turbo yeah

I can imagine him shouting rotaryyyy poweeeerrrrrrrr

@RADPotential

3 жыл бұрын

I'll do it in the next video I film

The stock final drive ratio is unsuitable to the Bridgeported rx7. At least a 4.88 or higher will better fit power band of said high revving engine.

@RADPotential

2 жыл бұрын

For sure!!! Changes are coming!!!

there is a saying, "people buy horse power but they drive torque " i like both cars but i would prefer the turbo one as a daily driver

@RADPotential

3 жыл бұрын

For sure!!! Ita definitely more comfortable to drive

Seems like the turbo was faster!

Should o let you friend drive his 13b and your drive your 12a to really see the different next to each other

@RADPotential

3 жыл бұрын

Just hard to find a safe spot to do it. Not real keen on street racing

I doubt you'll break a transmission with only 200 horsepower

Grey just needs rear gears 476

Ok I've decided my build. Bridgeport turbo lmaooooo

I see that XJ in the background

@RADPotential

3 жыл бұрын

The ultimate daily driver. 2wd 4.0. Auto 300k miles

@RADPotential

3 жыл бұрын

Need to do a 4w4 swap and a small lift. The lift gate doesn't go high enough

@thatsilverxj7874

3 жыл бұрын

@@RADPotential that swap should be pretty easy. Doing lifts isn't bad but definitely depends on how much rust your fighting! Just make sure to PB blast the rear shack bolts a few days in advance. They were the biggest pain for me

Fd first man

my rx4 coupe i had in the 90s had a rx7 5spd which would get stuck in 3rd! they are junk

1:10 DINK

6:20

you can rev it out to 8 you know? they keep making power way past 9

@RADPotential

3 жыл бұрын

Both of these engines aren't balanced so it's really hard on them to rev them that high

@Phil2stroke

3 жыл бұрын

@@RADPotential i rev my fd to 10 all the time i’ve put 85000km on my 13b rew engine its a stock oem mazda crate motor im about to ditch the oem twins for a new garret ball bearing turbo

@brianskotch2922

2 жыл бұрын

@@Phil2stroke terrible idea with an unbalanced/not side cut rotors motor and steel apex seals! Guaranteed when that motor comes out (and it will as goes with all FDs) the housings are going to have major chatter and I’d be willing to bet your rotors have smacked the end plates more than a time or two.

@Phil2stroke

2 жыл бұрын

@@brianskotch2922 10 months later your right my FD did blow up it took 40 000km it broke a apex seal on the rear rotor no chatter marks though and only re rear rotor and rear housing was damaged the rear iron and mid plate was fine being rebuilt as we speak! im using machined RX8 rotors for the rx7 apex seals thats 128012km by the way! With a bit more than 40000km of hard abuse and honestly it was great! it kept running on one rotor and i got it home!

"lets go break some transmissions" -me, going off for some street pulls in the ol' shitbox ya either grind 2nd, or the tires go SKRRRRT

@RADPotential

3 жыл бұрын

I told ya it was gonna break lol

That 12a needs a 5.38 gear. And a turbo 2 trans.

@RADPotential

3 жыл бұрын

Rx8 trans and a 4.88 would make it a ripper

@cafemotorsports

3 жыл бұрын

@@RADPotential i guess 6 speed would be nicer

Re-gear the mouse and I bet it takes the turbo car everytime

@RADPotential

3 жыл бұрын

I have a gslse axle I could stick under it for a quick test, hook it up no brakes and do the comparison again.... may do that when I do the swap to the new chassis.

na everyday bruv

@RADPotential

3 жыл бұрын

It's the stop light presence. Flexing on muscle cars is fun haha

ΟΚ.

Racing beat strut tower... I want

@RADPotential

3 жыл бұрын

Its a rare part to find lol.

@thyone2669

3 жыл бұрын

@@RADPotential trade ya got a set of weber 36DCD's :D

@RADPotential

3 жыл бұрын

Oooooo. Tough decision but nahhhhh...haha

@thyone2669

3 жыл бұрын

@@RADPotential How about a carboard template of the racing beat strut tower mailed out :D

Screw a turbo motor, 6-port turbo the world!

@RADPotential

3 жыл бұрын

I did that in my FC. It was a ripper!! Go check out those videos on the channel!!

@thepcmrtim

3 жыл бұрын

@@RADPotential You’re the reason why I did mine and also Aaron Cake! I have videos on my channel showing it off so much fun. I don’t know how on earth you got away with it on 9:7:1 rotors! I think 6-port turbos are going to be the new thing soon!

@RADPotential

3 жыл бұрын

Yea for sure. Just boost anything that is rotary. Parts are getting hard to get haha. 😪 I was only on waste gate and a baby turbo. So it wasn't a huge stress. And if you really think about it 9.7 :1 is still reasonably low compression on the grand scheme of things

13b turn up boost to 14

@Genxpoppy

2 жыл бұрын

13b without turbo got 180 200

Mouse is slower and anyone can Bridgeport and slap new apex seals in

Somebody needs a trans rebuild lol

@RADPotential

3 жыл бұрын

Just need a whole new one :)

Biased, 12a