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Topic: new exhaust and slow boost (Read 3030 times) previous topic - next topic

new exhaust and slow boost

i just installed a stinger exhaust on my 88 TC and now when i step on the gas the boost gauge shows that its boosting really slow.  the only thing that i have touched besides the exhaust is the intercooler to move it so i could see the downpipe.  i just checked and everything that i disconnected is tight.  i the car sounds like it builds boost but it goes nowhere, it feels like a dog now.  when i put the K&N on it really woke the car up... but now its slower than it was when it was totally stock.
 suggestions??? or boost leak somewhere?

new exhaust and slow boost

Reply #1 –
boost leak
[SIGPIC][/SIGPIC]
1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication

new exhaust and slow boost

Reply #2 –
Quote from: SLEEPER T-BIRD 87;172167
boost leak


X2 - anytime you touch the intercooler, there is a change of not getting one of the couplers or clamp on there right. The other thing to look at, make sure you didnt knock the wastegate rod loose. Its down there where you were messing with the downpipe bolts.

Bob Myers

new exhaust and slow boost

Reply #3 –
yea the exhaust would make it spool way faster, so theres a boost leak in there somewhere.
RIP 1988 and 1990 Lincoln Mark VII LSC
I welcomed the dark side and currently am driving a 2000 Dodge Durango SLT plus, with a 5.9, Code named project "Night Runner"
Shes black on black, fully loaded, with headers, 180 tstat, e fan, straight exhaust into a cherry bomb vortex ler, full tune up, ported intake and T/B, MSD coil, and round aircleaner.
Mods to come: Fully rebuilt and heavily modded 46RE, and a richmond rachet locker.
my $300 beater ;)
R.I.P Kayleigh Raposa 12/18/90 - 2/24/07

new exhaust and slow boost

Reply #4 –
I am running the stinger exhaust installed by stinger himself.  check all of your boost/vacuum connections and fittings and lines to make sure you dont have a leak and also check to make sure that your intake tube isnt sucking closed under boost.  keep us posted

new exhaust and slow boost

Reply #5 –
ok so i should check ALL  of the vacuum lines???
88turbo- what do you mean by the intake sucking closed under boost?

martin0660- should i check for play in the wastegate rod and what do i do if it is loose (dont think that i touched it though...)

new exhaust and slow boost

Reply #6 –
Check all vacuum lines and intercooler couplers!
RIP 1988 and 1990 Lincoln Mark VII LSC
I welcomed the dark side and currently am driving a 2000 Dodge Durango SLT plus, with a 5.9, Code named project "Night Runner"
Shes black on black, fully loaded, with headers, 180 tstat, e fan, straight exhaust into a cherry bomb vortex ler, full tune up, ported intake and T/B, MSD coil, and round aircleaner.
Mods to come: Fully rebuilt and heavily modded 46RE, and a richmond rachet locker.
my $300 beater ;)
R.I.P Kayleigh Raposa 12/18/90 - 2/24/07

new exhaust and slow boost

Reply #7 –
YAY i cant wait....

new exhaust and slow boost

Reply #8 –
the intake tube going from your airbox to your turbo. there should be a spring inside to keep it from sucking closed under boost

new exhaust and slow boost

Reply #9 –
ok just retightened everything down and replaced some hoses now it boosts like crazy!!!

now im new to turbos and do not fully understand them so i have a ?... when i stomp the gas to accelerate the car gets up to a certain boost level then goes back down to 0.  is this typical of turbos or is something releasing the pressure unnecessarily??

new exhaust and slow boost

Reply #10 –
you have an IHI. Your boost drops out? Somethings not right it should hold full boost till you let out of the gas.
RIP 1988 and 1990 Lincoln Mark VII LSC
I welcomed the dark side and currently am driving a 2000 Dodge Durango SLT plus, with a 5.9, Code named project "Night Runner"
Shes black on black, fully loaded, with headers, 180 tstat, e fan, straight exhaust into a cherry bomb vortex ler, full tune up, ported intake and T/B, MSD coil, and round aircleaner.
Mods to come: Fully rebuilt and heavily modded 46RE, and a richmond rachet locker.
my $300 beater ;)
R.I.P Kayleigh Raposa 12/18/90 - 2/24/07

new exhaust and slow boost

Reply #11 –
boost leak maybe???
 i dont have a BCS but i ordered a manual boost controller should that help at all?

new exhaust and slow boost

Reply #12 –
You dont have a bcs? thats boost control soliniod right? You should have one, or the turbo is just going to boost as much as it can, i believe. How much boost is it making?
RIP 1988 and 1990 Lincoln Mark VII LSC
I welcomed the dark side and currently am driving a 2000 Dodge Durango SLT plus, with a 5.9, Code named project "Night Runner"
Shes black on black, fully loaded, with headers, 180 tstat, e fan, straight exhaust into a cherry bomb vortex ler, full tune up, ported intake and T/B, MSD coil, and round aircleaner.
Mods to come: Fully rebuilt and heavily modded 46RE, and a richmond rachet locker.
my $300 beater ;)
R.I.P Kayleigh Raposa 12/18/90 - 2/24/07

new exhaust and slow boost

Reply #13 –
it keeps going up but i wont let it go past 18lbs  i have to shuft kinda quick lol

so shoulda manual boost controller solve that problem?

new exhaust and slow boost

Reply #14 –
Yes. It will let you set the boost. Just make sure you put it in the right way
RIP 1988 and 1990 Lincoln Mark VII LSC
I welcomed the dark side and currently am driving a 2000 Dodge Durango SLT plus, with a 5.9, Code named project "Night Runner"
Shes black on black, fully loaded, with headers, 180 tstat, e fan, straight exhaust into a cherry bomb vortex ler, full tune up, ported intake and T/B, MSD coil, and round aircleaner.
Mods to come: Fully rebuilt and heavily modded 46RE, and a richmond rachet locker.
my $300 beater ;)
R.I.P Kayleigh Raposa 12/18/90 - 2/24/07