mrbsponge

well on the new motor build i swapped out my bored our GSR throttle body for an RPM Service 72mm. Now after, i got the started the car has a horrible fluctuation in idle.

it idles from like 1000-1600, almost sounds like an IACV issue, but i get no CELs, at all.

i checked for vacuum leaks, i pressurized the intercooler piping and intake manifold with 50psi of air and i have no vacuum leaks at all.

im going to do a valve adjustment on the car since the motor is broke in because i believe my valvetrain is a bit too tight

also this RPM T/Body has no FITV on the bottom, if that makes a difference


and this is the model im using just in 72MM

tony1

Make sure you have the right gasket and that the TPS is set correctly. If you have the gasket for the t/b with the fitv, i don't think it'll seal right on that t/b.

Peter Shen

i had the same problem with the 70mm tb.. the TPS voltage was wayy off.. after fiddling around with the TPS sensor i got a much better idle

atec

2 of 2 our builds with that throttlebody have problems with idle.
Now the TB shaft (inside TB) broke.

mrbsponge

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">Make sure you have the right gasket and that the TPS is set correctly. If you have the gasket for the t/b with the fitv, i don't think it'll seal right on that t/b.</TD></TR></TABLE>

what gasket can you use on something like that tony? i was thinking of either making one, or just using some liquid gasket maker, as ghetto as that sounds! im using the "outlaw engineering" thermal gasket, and it seems to cover enough, even tho i had to trim the inside out, to almost nothing


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Peter Shen &raquo;</TD></TR><TR><TD CLASS="quote">i had the same problem with the 70mm tb.. the TPS voltage was wayy off.. after fiddling around with the TPS sensor i got a much better idle </TD></TR></TABLE>

i will check that when i get home from work tonight, good call, i wasnt even thinking of that. just started the new motor up for the first time and was trying to just get her to warm up.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by atec &raquo;</TD></TR><TR><TD CLASS="quote">2 of 2 our builds with that throttlebody have problems with idle.
Now the TB shaft (inside TB) broke.

</TD></TR></TABLE>

WOW that isnt even cool, how did something like that happen?

tepid1

If you have a problem they back their products.... give them a shout.

vaporboy12

i just used honda bond for a gasket there

mrbsponge

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vaporboy12 &raquo;</TD></TR><TR><TD CLASS="quote">i just used honda bond for a gasket there</TD></TR></TABLE>

thats kinda what i was thinking

Blue Streak

does anyone have there phone #

Casey

iTrader: (5)

bump hope you get it figured out. i do remember howard taking a few minutes to get my car to idle correctly with it.

mrbsponge

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blue Streak &raquo;</TD></TR><TR><TD CLASS="quote">does anyone have there phone #</TD></TR></TABLE>

i just looked, and cant find it either

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Casey &raquo;</TD></TR><TR><TD CLASS="quote">bump hope you get it figured out. i do remember howard taking a few minutes to get my car to idle correctly with it.</TD></TR></TABLE>

howard who?, maybe he can shed some light on me

Casey

iTrader: (5)

shoaf...airshifter on here, works at rlz/speed innovations

mrbsponge

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Casey &raquo;</TD></TR><TR><TD CLASS="quote">shoaf...airshifter on here, works at rlz/speed innovations</TD></TR></TABLE>


thanks.

LilCivic04

well im running one of their 68mm tb on my sohc and it i'm having the same idle problem. im going to switch to another one, it sucks

tepid1

don't blame it on the TB. You just don't know how to set it up....

mrbsponge

EDIT: Problem fixed!


my dumb fault, when i trimmed the gasket to fit the T/B, i accidentally trimmed too far and got into the IACV and FITV air passages.

idles fine now

JDMorgan

i had something ridiculous like 72mm str tb with no problems. its really not needed. im shooting for 800whp with a 63.5mm throttle body.

alpha

Damnit Mike! I said to keep me updated Shoot me a PM