Part 4. Is it worth it? Throttle Body Coolant Bypass & 160 Degree T Stat.
Part 4 in our performance bolt on series. Today I install a throttle body coolant bypass kit and install 160 degree thermostat to my 1985 L98 Corvette and see if its worth it or not.
Air Foil. amzn.to/3s4M4LJ (Amazon)
K&N Air Filter. amzn.to/3OK2jqI. (Amazon)
160 Degree Thermostat. amzn.to/44Wtt3h (Amazon)
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Пікірлер: 81
The title was Was it worth it? Is it?
Thank you, I bought your kits and did all the same mods. The car runs amazing now, even starts easier with the smog pump gone. Engine bay so much cleaner and easier to access components.
@etwasbauen6615
Жыл бұрын
Thank you for your business! Thats great. Yes they are great mods to do!
Did this on my 87 TA. Did some before and after temps, after a 30 minute drive the throttle body was 20-30 degrees cooler and the runners were around 10 degrees cooler.
@etwasbauen6615
2 жыл бұрын
Thats Cool. That was a good idea.
I was watching a guy couple years back on KZread that did a homemade bypass and the way he did it was he use the two-way valve and a t connection on the other end so that during the summer months he could turn the valve to where it would bypass the intake and during the summer, then turn the valve the other direction for winter driving. I wish I had thought to save the video, he did a good job and it looked good. The two way valve and T connector were brass so they should last.
@etwasbauen6615
2 жыл бұрын
Thats a great idea.
@scoutleader06
Жыл бұрын
TPIS delete kit
@bradquandt2420
Жыл бұрын
@@scoutleader06 Do you have a link to where I can find this delete kit online? I tried a google search but cannot find it.
It seems that results would have made it much much more interesting
@larrybud
23 күн бұрын
Yeah, too bad nobody is putting these cars on a dyno to see the results. I have an old vette performance book which did some mods and had before/after dyno tests which was nice.
I would like to see ur video on deleting ur smog pump and plumbing caps etc
Nice, i did all the same mods that you have done on mine also. Only thing I would do different is to not wear a nice watch and scratch it up :)
@etwasbauen6615
2 жыл бұрын
Haha thank you, its my daily watch so it has seen worse.
@jimgagne3801
2 жыл бұрын
Wait, is it an Invicta? who cares.... HAHahahaha !
My '89 doesn't have the metal line where the straight piece of the bypass kit connects too?? mine's all heater hose from throttle body to firewall!! looks like I'm going to need to put a union in after all :( ... your videos kick a$$!! don't get me wrong..i ordered the hose, without visually looking at mine... Ohhh well.. still going to be cleaner!!!! Keep'em coming!!!
Why even run a new connecting hose? Is it actually needed? Why not just have 4 capped off connectors?
@larrybud
23 күн бұрын
It's piping the coolant directly into the block (or from the block , I'm not entirely sure which way that coolant is running).
How expensive are the replacement electronics for the c4 cars, ik the 92 to 94 ecms have connector pin issues, buy I like the l98 cars so, I'm looking for a 90 to 91 convertible, any advice when it comes to this issue would be great thanks
Does the temp sensor you replaced have anything to do with the pcm turning the cooling fans on and off? And is there a coolant temp sensor that would turn them on earlier as mine doesn't seem to come on at all! Lol so I just ran a switch to the fan relays beside the upper drivers side rad and into the drivers compartment where I can manually control the cooling fans when I see it getting anywhere above 3/8's..
@anthonyciarrocca2476
2 жыл бұрын
The pcm controls the temp at which the fan turns on. However, if you have the auxiliary fan located in front of the radiator, you can get a temp sender that will turn that one on at a st temperature. I bought one on eBay to control that. I also purchased a prom that turns the main fan on at 180. The 160 degree thermostat will open sooner. However, if it’s cold outside and you are driving at a decent clip, you will maintain a cooler running engine. If your cooling system very efficient, your engine may stay at 160. Once you idle down, the engine will warm up to whatever the fan is set to turn on. I hope that helps
@etwasbauen6615
2 жыл бұрын
My thoughts exactly!
the bolt broke in half on me now i gotta figure out how to get it out :(
Your kit says for corvette. I’m sure it will work for a 305 tpi in a camaro right? It’s the same engine correct?
Does that hose work for 95 Vette lt1
Do you know how to pull the overdrive relay and where it’s located? Mine turns on and off and I have a feeling Bc of this, it has caused problems at idle. When car in neutral it’s clunking but when pushing in clutch it goes away. Anyone answers lmk, haven’t found much on old forum threads
@etwasbauen6615
2 жыл бұрын
Hi im not sure. Ill have to look into it.
I also relocated the air temp sensor up to before the throttle body and that sensor is in the plenum by the EGR valve. EDIT: I should say I deleted that EGR too. 1985 and doesn't make the check engine light come on.
@etwasbauen6615
2 жыл бұрын
That a good idea! Thanks
@twatson6252
Жыл бұрын
Does a 85 vette have the air intake sensor thanks
Because I know you had to do two separate videos for both parts
Just bought a 85 vette with tuned port. It runs terrible won't idle spits and carries on until the car reaches 180 degrees temp then it runs great. I checked the cold start valve and the coonector and it was fine. Any other ideas thanks.
@realtan9026
Жыл бұрын
Ya get a c8
@ivorybankston3932
11 ай бұрын
thermostat stuck in open position
why would you install a 160 t-stat on a motor that is designed to run at 200 degrees ?
@zadokmotorfreight2423
16 күн бұрын
I always wondered the same thing
I noticed the watch too. Looks nice! What kind is it?
@etwasbauen6615
Жыл бұрын
Thank you! They are the other thing i collect besides cars!
Where did you get the bypass kit? I want to do the same thing on my '95 LT1. And do you have to drain the system to do the bypass?
@larrybud
23 күн бұрын
There's a million bypass kits on ebay, but this guy sells his own for competitive price. You don't have to drain the whole system, but you will lose whatever was in the TB and in the hoses you're removing.
I wanna get mine running so bad but idk what all I need to do to just get it running. Do you know what all other than fluids changed i would need
@etwasbauen6615
Жыл бұрын
Hi, i would change the oil and the coolant and try to get it running. at that point you can work out the kinks from there.
@NOOBNOOB007
Жыл бұрын
@@etwasbauen6615 thanks @Etwas Bauen
Is that hose even necessary? I was wondering if left side of engine needs that amount of extra cooling flow?
@etwasbauen6615
2 жыл бұрын
i believe the coolant goes from the engine into the cars heater core. Thanks
@dukeman7595
2 жыл бұрын
@@etwasbauen6615 I believe that hose runs under the plenum, it was made to give heat to the underside of the plenum in areas of the country with very cold winters, totally unnecessary.
@brutallybrutalbrutality6505
2 жыл бұрын
@@dukeman7595 i live in kentucky lol winters can be rough think it would be a bad idea to remove mine?
@christianmorrison2813
2 жыл бұрын
@@brutallybrutalbrutality6505 I live in Louisville... Winters in Kentucky are not rough. It's for places that get alot colder, if you plan on taking your car out in 30 degree weather leave it alone
Thanks for the great video, I didn't quite get what the advantage of the bypass? Also, can you add a quick 20 seconds to this video on how you added the plugs? Did you use a sealant? etc.
@etwasbauen6615
Жыл бұрын
Thank you. It just takes away hot coolant away from the throttle body allowing cooler air to enter. The caps just slide on . You technically dont need them it just looks nicer. Thanks
@scoutleader06
Жыл бұрын
the advantage is you delete alot of junk hose and fittings to clean up under the hood . But this delete does not do that the hose and junk is still there. Do it right with the TPIS delete housing for the throttle body. Its a direct bolt-on. But If you live in Alaska or Iceland warming the throttle body with hot water makes sense.
@yourewrong4399
Жыл бұрын
As I understand it, the throttle body coolant hose takes the warm coolant directly from the engine as it is at the end of the coolant loop and thus the warmest part, therefore warming the throttlebody and air going through it. Colder air has more oxygen, so bypassing this coolant line keeps the throttle body colder and makes the engine run better; more power. I'm not sure about how to add the plugs.
@rotorblade9508
Жыл бұрын
at WOT the engines sucks air at like 200cfm I don’t think it has time to warm up from the TB even though it warms up the entire manifold. But the car seems to heat soak for some reason
What would interesting is if you could run your AC cooling line thru that throttle body!
@etwasbauen6615
2 жыл бұрын
Yea that would be interesting for sure!
@tylerbonser7686
2 жыл бұрын
Mopar actually uses the ac on at least some of their 707 hp engines for an intercooler. However on a N/A motor you will likely lose more hp to parasitic loss from the ac than you'll gain from the colder air.
Good deal One question -_- I probably know the Answer?? With your smog pump delete video -_- can change the bypass coolant system at same time ????? Somewhat mechanically inclined I am
@etwasbauen6615
10 ай бұрын
Yes you can do both . Thanks
What’s the difference between the 1985-1987 and 88-91 kit for the throttle body bypass kit
@childishgreenbeano953
10 күн бұрын
Different style hose for the l98 and lt1 running up to the heater core.
@Polydeukes68
9 күн бұрын
@@childishgreenbeano953 Nope, they all run L98. The LT1 motors came in 1992.
No go. another half-way delete job. Buy the TPIS coolant delete housing its a direct bolt-onto the bottom of the throttle body and then get rid of all the plumbing plugs and lines for the the stock throttle body coolant system.
I did my car and it not getting heat to the vents like it use to
@larrybud
23 күн бұрын
If you changed the thermostat, your running temp may be lower than what it was before, hence the heater core won't be as hot as it was before. I think 160 is too low, I opted for a 175F therm just for this reason.
Did you change the thermostat because it's needed fot this mod or just because you were working near it?
@coltonbelvin2820
Ай бұрын
Its not needed necessarily but most people run cooler thermostats to help them not run so hot
@Polydeukes68
9 күн бұрын
@@coltonbelvin2820 Cooler thermostat doesn't actually make your car run cooler. It just opens earlier and makes your motor rise to operational temp slower. It does regulate the heat going up and down though. Eventually your motor will heat up to what it will no matter of the thermostat. Too cool of a thermostat also effects how quickly the car will go into a closed loop operation (ie. start adjusting fuel mix with sensors instead of running from a preset table).A stock thermostat is 192°, IMO a 180° is a good compromise - not too cool but opens little earlier. The cooling system as whole will determine the max temp the motor reaches. Clean system, especially the radiator and working fans are the most important things. You can lower fan turn on temps by installing a low temp fan switch or programming the ECM. These things work a bit different in early C4's vs. later models.
Is it self bleeding? My mechanic wanted $250 for a bypass job!
@etwasbauen6615
Жыл бұрын
You would just have to top off your coolant after you get it hot and then cools off. It should take that long to do.
@scoutleader06
Жыл бұрын
TPIS delete housing. Direct bolt on to throttle body in your garage. About $60 and 1/2 hr
@larrybud
23 күн бұрын
@@scoutleader06 Got a link? I'm trying to figure out what you're saying and "tpis delete housing" search reveals nothing.
IATS relocation is worth it if you haven’t done that yet
@etwasbauen6615
Жыл бұрын
Thanks
Ha ! I watched your video... and said I will be careful not to snap that sensor.... Why do I even try. "F" that brittle thing ! W.T.F. ! you do a good job at making your videos understandable... for dumb people like me. Thanks !
@etwasbauen6615
2 жыл бұрын
Thank you. Yea it happens more often then not. You try to one project and end up breaking 3 extra things. haha thanks for watching
What kind of watch is that?
@etwasbauen6615
2 жыл бұрын
Its actually an Invicta Auto Diver.
Not a helluvalot of Point to 'capping' the inlets into the throttle body Once you remove the hoses and Coolant. Beyond that the presence of RTV is the Signature of a Moron Mechanic.
@etwasbauen6615
2 жыл бұрын
Thanks!
@scoutleader06
Жыл бұрын
exactly
@larrybud
23 күн бұрын
A finished look, prevents bugs from crawling up there, or other dirt and debris.