19 replies to this topic

[Rower]

i hit a dead deer and busted the bottom of my intercooler. im at a shop in georgia, they r looking for one at a junk yard. if they fail, can i bypass the intercooler by going str8 from the turbo to the intake manifold? will it be too hot? i have 2 hours to SC then 10hrs back to Miami. thanks for the help!

[Bah]

Rower, on 12 March 2010 - 05:53 PM, said:

i hit a dead deer and busted the bottom of my intercooler. im at a shop in georgia, they r looking for one at a junk yard. if they fail, can i bypass the intercooler by going str8 from the turbo to the intake manifold? will it be too hot? i have 2 hours to SC then 10hrs back to Miami. thanks for the help!

I have a sly feeling that yes, it would be too hot..

However, if you took the WG actuator arm off, set the WG to continuously open, you'd have no boost essentially so it shouldn't spool up (maybe?...) You'd throw all sorts of wierd codes i imagine, and it'd go slow asssss on 95/75 i have a feeling...Heck you could probably just run off WG pressure and the air wouldn't even get hot enough to matter w/o even touching the arm. 3-4 PSI i bet you could get away with, but i'll wait till the people with experience w/ this come in

I'll just say they SHOULD have an intercooler for sure.

[Hanks]

just as he said, if it comes down to it. disconnect the wastegate and bypass the intercooler. there are a few VW hidden turbo setups that ive seen that dont run an IC

[ozzimark]

And if the car freaks out because of the air leak, unplug the MAF

[Rower]

by disconnect the wastegate, unplug the vaccuum hose leading to it? i wont accelerate hard but i wanna be able to do 70, you all think it will be ok?

[Hanks]

no, take the arm off the wastegate so the flapper is free. do not disconnect the vac line.

[Rower]

ok, ill need to take that aluminum shroud off and then one i disco the arm, should i tie it open? its a mess of blood and guts in there. hope they come through with the intercooler.

[Hanks]

do this. no need to take the shroud off.

Edited by Hanks, 12 March 2010 - 06:35 PM.

[JVC]

run no boost and bypass the IC, the NOS Drift 350z was setup that way because it made too much HP with the turbos boosting so they just bypassed and ran no boost, and still made like 400whp.

[Hanks]

just disconnect the wastegate arm.

It, on 12 March 2010 - 07:07 PM, said:

run no boost and bypass the IC, the NOS Drift 350z was setup that way because it made too much HP with the turbos boosting so they just bypassed and ran no boost, and still made like 400whp.

you make no sense.

[TRACStar]

How hot would it really get if he just limped it and didn't get into boost?

My old IC was all effed up because I blew a turbo seal and before I changed it I went to the track and after 1 run the post IC plumbing was too hot to hold. It really wasn't cooling at all and it was like that for awhile until I swapped it.

Bypassing the IC and babying the car seems like a better option.

[mojojo]

It would probably be ok to bypass the inter cooler on a 100% stock car, with especially stock boost... I'm also not really aware of how well the ECM does when pulling time.

I have an intercooler that has broken mounting tabs, you're welcome to it. Find some way to mount it temporarily, maybe large fender washers under bolts or so. ~10 miles north of Atlanta. PM me.

Also, think of all that unfiltered air coming in now that the intercooler has large hole in it.

[boxpin]

850T_Wagon, on 12 March 2010 - 07:25 PM, said:

Bypassing the IC and babying the car seems like a better option.

Thats my vote.

[Account_Deleted_T5M]

Run all motor, by just disconnecting the ARM as kevin said, i've been racing before and my arm came off (forgot to put pin back in) it gets really loud as the turbo is legally considered a muffler, and it'll be slow unless its a 2.4 LPT

[--Aaron--]

Coral_t5m, on 13 March 2010 - 12:36 AM, said:

Run all motor, by just disconnecting the ARM as kevin said, i've been racing before and my arm came off (forgot to put pin back in) it gets really loud as the turbo is legally considered a muffler, and it'll be slow unless its a 2.4 LPT

Just curious, if he disconnects the arm thus allowing the wastegate to be fully open why would motor setup make a difference in performance under those circumstances? It seems to me that no matter what the motor the turbo will be just along for the ride.....

I worked last night and haven't slept yet so maybe I'm not seeing something obvious.....

Edited by --Aaron--, 13 March 2010 - 12:47 AM.

[bergmjs]

--Aaron--, on 13 March 2010 - 12:47 AM, said:

Just curious, if he disconnects the arm thus allowing the wastegate to be fully open why would motor setup make a difference in performance under those circumstances? It seems to me that no matter what the motor the turbo will be just along for the ride.....

I worked last night and haven't slept yet so maybe I'm not seeing something obvious.....

Exactly, the turbo will just be along for the ride, but the motor will function as an NA motor with extra intake piping, which is why if he had a higher compression engine it wouldn't be as bad. The 2.4L has higher compression than a 2.3L.

[Rower]

Hey everyone, thanks for the help. They couldn't find an intercooler so we bypassed it. To do it, we had to cut the alum tube coming from the turbo in half and extend it with some of the hose from the bottom of the intercooler. The mechanic played some jedi mind games on me and convinced me to leave the wastegate alone. I made it from Statesboro, GA to Aiken, SC without a problem. I kept an eye on the boost guage and just never let it go over 0. I race tomorrow (rowing) and then head back down to Miami. I have a totaled 850 at home so I'm hoping the intercooler is in tact so I can swap it.

The concern for bypassing is too much heat right? Not like I care if it accelerates well, just that the heat doesnt damage any parts. If its just heat that I need to worry about, will unhooking the wastegate help me any? I'm guessing if i boost then the heat will go up exponentially but if I stay under boost I'll be ok. Is this good logic?

Thanks again everyone.

[bergmjs]

Yea, that's the theory behind it. Having the wastegate open makes sure you have minimum pressure possible on the turbo, which results in minimum compressed air (boost) and minimum heat flow from hotside to coldside of the turbo. But if you stay in vacuum the whole time then it's almost equivalent to unhooking the wastegate; you just have a little more pressure and heat building on the turbo.

But if you do good with keeping it at or below 0, then it should be fine. In theory.

[Hanks]

what you did was just perfect.

just keep it that way and run water meth, insta-spool with no IC

[ACiancio]

It should be fine. early turbos (even the 240) didn't have ICs. its just you get better compression with cooler air. I still wouldn't push it to the max but there shouldn't be any problems, running without a turbo sucks the motor doesn't have any power at all