boost leaks and mani leaks!(revhard kit)
Alright as yal know the turbo kit is in but its not working like its suppose too. (ths is due to my mistakes! this still is a bomb ass kit)i may have made some mistake with the install but im working on fixing it and i need some advice on whats suppose to go where, whats it suppose to sound like ect... here is the problems
*EVERYONE WHO INSTALLS THERE OWN KIT AND HAS PROBLEMS PAY ATTENTION AND LEARN FROM MY FUCK UPS!*
PROBLEMS
Fuel system leaning out
6 psi is the max the turbo is boosting up too
On the exhaust side of the turbo, it sounds a bit funny.(see video)
Poppin noises from turbo on idle (see video)
Blow off Valve is not functioning
When driving say in third and im driving at low rpm and i push the gas down the engine bay make a plplplpl sound! (stick out tounge and blow with mouth closed)yea like that
POSSIBLE CAUSES
Manifold connecting the block to the turbo is no on properly
Blow off valve is fucked up
Blow off valve is not getting enough pressure to blow off
Exhaust side of turbo has a leak and it leaks excess pressure thus it cant build more than 6psi
Ic piping is not on correctly (boost leaking through a pipe)
COMMON SENSE
I know a bov is suppose to still let off pressure even at low low boost!
Looked for smoke from leakage only could smell fuel and oil
Took off bov hose to see if it has a vac going on and it did.
I get compressor surge like a mutha fucka due to no bov activation
VERDICT
NEED YAL HELP/KNOWLEGE TO FIND OUT WHATS WRONG WITH THIS MAMI!PLEASE
ALSO IF YOU WANT TO SEE PICS OF A CERTAIN PART LET ME KNOW AIGHT!
here are pics and vids
Last edited by playap07; 07-30-2008 at 11:05 PM.
you see that loop of vacuum line coming off your intake manifold?
the one where you tied everything into
that right there is a big no no when the engine is somewhat cold the black thing opens and it acts as a vacuum leak
plumb everything to the big fat black line going to the brake booster
also im willing to bet the bov is always open now or not working right
as a matter of fact call me now
910 581 2947- jason
i once had a 592whp ep on pump gas, i sold it and bought a Z
(heed my advice i know what im doing)
Well it does sound a little odd but it could be from a number of issues. The popping sound sounds like its a tuning issue and the fuel is not being injected properly. We need more info. Are you running K-Pro? What size injectors. So you said you can gain boost up to 6psi? that means your IC piping is connected properly and your BOV should work and release pressure even at 1psi. I am not to familiar with that particular BOV but it sounds like a problem with the BOV itself. It looks to be hooked up correctly. Depending upon what Engine Management you are running, it will have a lean cut and not let you boost anything over the "Danger Zone". But if you are leaning out you should not be trying to boost... AT ALL. You will blow your motor to hell.
Originally Posted by weltall
I wouldnt think that taping into that line would cause all of those problems. A lot of people do that and seem to run ok after the motor is warm. I am running through the Brake Booster though so I dont know first hand
there are alot of other things i see which could be the issue
its just better to say it than type out a novel
fuel popping like that im sorry but no he would have secondaries like misfire codes
that sound is either a bad exhaust leak or he is still using 87octane
but the exhaust leak explains more problems than tuning
i once had a 592whp ep on pump gas, i sold it and bought a Z
(heed my advice i know what im doing)
i feel ya playap07, ive got new issues too (shit happens oh well)
bump for you and gl
Would using 87 octane really effect it that much? Are you running the RevHard Base map 10psi? Size injectors? I guess if everything is in order and you have no codes then it is a leak. But it still doesnt explain the 6 psi max unless the leak is ridiculously large which doesnt look likely.
alright! got your number in my phone! i know its late now so ill give you a call tomorrow when i work on my car. thanks!
nope i dont use 87 oct i use 91 if i can find it but 90 is the most common one here in new mexico(i live on base and they have 91 here so im straight on that). the base map im using is the revhard 10psi with the 550 tune. i changed the injectors to 630cc. the only code i have been haunted with is the lean code 45.
whats going on with your issues? what happen?
Last edited by playap07; 07-30-2008 at 11:15 PM.
hey playap07 good luck with the problems. Hopefully all this boost trouble will go away soon. Not gonna lie im a little worried about my revhard kit. It comes in tommrow. But I gotta THANK YOU because i feel more prepared now through your posts and hopefully i can learn from your problems. PLEASE POST YOUR SOLUTIONS!!!!
dont be worried... if everytihng is done right the 1st time then you will be fine.
Not saying that you didnt do it right, just saying in general.
what basemap are you using? switch to the revhard-mototron injc. (switch you injector size). you will no be running lean with that one
also is that like a 3 cm gap in the turbo manifold to the block?
Can the manifold be warped????
it is a possibilty but you really cannot tel from the pics because even my FR mani looks like that (the exhaust ports actually stick further out than the head face)
but......
you can install a manifold improperly and ive seen it happen to where it seats wrong and there are openings
if you just tighten bolts all the way down as you go it will cause the manifold to seat crooked (if done it on accident when i realized my bottom bolts wouldnt thread right and luckily i didnt cross thread any of them)
but if you go top first and tightne all the way it actually will lift the bottom part off the head and even when the bottom bolts bottom out it still will be off the head because the top didnt give
(head)= l (improperly bolted mani)= \
l\@
(make sense?)
now the common indicators of a gapped manifold are
popping sound (since you hear the individual cylinder better)
low boost(since the leak is acting like a wastegate)
russling leaves sound under acceleration
make sure you call me tonight
ill be in the garage wiring up injectors so if i miss the call text me and ill get it and call you back
i once had a 592whp ep on pump gas, i sold it and bought a Z
(heed my advice i know what im doing)
1st on start up the engine revs a little higher till warm also till warm if i rev it, it will stay at that rpm for a few seconds then slowly die off
Then there was a leak and i was only boosting 3.4 but the line came off the boost controller.
So we were testing it and and now the mph gauge is flipping out. Under hard accel in 1st, 2nd, or 3rd, or even just driving normal in 1st its bouncing all over, but 4th was fine last night under boost
Then more often then not in 1st 2nd and sometimes 3rd it goes full boost till
6k then will die off to a lower boost, then kick on and off, or its low boost then suddenly it will kick on then at 6k or higher do the same thing. Then sometimes its fine i can do full throttle runs no problem, but again in 4th last night it was fine.
idk all the lines on the boost controller are fine
ok so thats the settings on the controller
http://www.j-body.org/forums/read.ph...51697&t=151697
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