Notices
Scion tC 1G Forced Induction Turbo and supercharger applications...

Turbo PSI Question

Thread Tools
 
Search this Thread
 
Old 04-25-2010, 07:06 PM
  #21  
Senior Member
10 Year Member
5 Year Member
SL Member
iTrader: (1)
 
athletefeet66's Avatar
 
Join Date: Mar 2007
Location: Upland
Posts: 1,027
Default

yeah im running the greddy kit and i have the replacement manifold with support bars but the welds cracked on the support bars... :/ it has been holding up fine for now, we will see how it does with some more boost running through it. how much is that replacement manifold? i got mine used so it came with it. if mine cracks im going to go custom with EWG.
i have 550cc that im going to install once i get tuned for 10psi and see where that takes me.
athletefeet66 is offline  
Old 04-25-2010, 07:29 PM
  #22  
Senior Member
10 Year Member
5 Year Member
SL Member
Thread Starter
 
RichTc's Avatar
 
Join Date: Jul 2008
Location: Long Island, NY
Posts: 458
Default

Well if my injectors are tapped out, that's fine, I don't need really need to go any higher. I'm too the point where I have enough power to keep me happy and don't want to drop more money than I need to into the car.

Greddy couldn't give me a price on it as they don't sell it directly, but they said 400-500. I was looking into another manifold, but am unsure what will fit. From what it seems, it may be more than it's worth to make something fit, considering modifications to the down-pipe and intercooler piping that might be needed.
RichTc is offline  
Old 04-25-2010, 07:38 PM
  #23  
Senior Member
10 Year Member
5 Year Member
SL Member
 
m6ar2cel6oTC's Avatar
 
Join Date: Aug 2006
Location: Miami
Posts: 4,888
Default Re: Turbo PSI Question

Originally Posted by jsmillie07

I've heard of ppl not being able to hit 300 with 550s and even 630s. It really depends on your tuner. I'm going to assume with ptuning that 550s are too small. Just contact them and get their opinion.
Heard wrong I made 326whp on my old 550cc And they weren't maxee out.
m6ar2cel6oTC is offline  
Old 04-25-2010, 07:39 PM
  #24  
Senior Member
10 Year Member
5 Year Member
SL Member
 
m6ar2cel6oTC's Avatar
 
Join Date: Aug 2006
Location: Miami
Posts: 4,888
Default Re: Turbo PSI Question

Originally Posted by coryjames
boost dosent mater like you would think its about temp i make massive power for my boost level thanks to angry timing and e85 my turbo makes cooler air at higher boost more efficiency ask gingles its all about tune and temp i have seen cars with alot of boost but no power due to rich tune and conserv timing.
How are you monitoring timing? Knock?
m6ar2cel6oTC is offline  
Old 04-25-2010, 08:36 PM
  #25  
Senior Member
10 Year Member
5 Year Member
SL Member
 
coryjames's Avatar
 
Join Date: Jul 2007
Location: Arvada, CO
Posts: 7,024
Default

who gives lol i dont monitor knock lol if it blows it blows why play it safe motors are cheap and the fun intense lol ................ no i have ways lol im rocking alot of injector got 900s twin pumps and 70 psi of fuel pressure
coryjames is offline  
Old 04-25-2010, 08:44 PM
  #26  
Senior Member
10 Year Member
5 Year Member
SL Member
 
m6ar2cel6oTC's Avatar
 
Join Date: Aug 2006
Location: Miami
Posts: 4,888
Default Re: Turbo PSI Question

Originally Posted by coryjames
who gives lol i dont monitor knock lol if it blows it blows why play it safe motors are cheap and the fun intense lol ................ no i have ways lol im rocking alot of injector got 900s twin pumps and 70 psi of fuel pressure
If you say so baller lol. Raise the boost more and see how much heat the cylinder walls can take lol.
m6ar2cel6oTC is offline  
Old 04-25-2010, 08:47 PM
  #27  
Senior Member
10 Year Member
5 Year Member
Fresh Crew
SL Member
 
ecko04's Avatar
 
Join Date: Jul 2008
Location: Atlanta/Charlotte/Auburn
Posts: 2,243
Default

Originally Posted by jsmillie07
...I'm going to assume with ptuning that 550s are too small. Just contact them and get their opinion.
Incorrect, PTUNING includes 550cc with their turbo system, which is capable of making 300whp with the default setup.
ecko04 is offline  
Old 04-25-2010, 09:03 PM
  #28  
Senior Member
5 Year Member
SL Member
 
jsmillie07's Avatar
 
Join Date: Feb 2008
Location: Pembroke Pines, Fl
Posts: 126
Default

Originally Posted by ecko04
Incorrect, PTUNING includes 550cc with their turbo system, which is capable of making 300whp with the default setup.
That's why i said to contact them to see what they think. I know it really depends on the tuner.
jsmillie07 is offline  
Old 04-25-2010, 09:10 PM
  #29  
Senior Member
10 Year Member
5 Year Member
SL Member
 
coryjames's Avatar
 
Join Date: Jul 2007
Location: Arvada, CO
Posts: 7,024
Default

i run 12-12.5 afrs pull no timming till 8 psi then pull a half degree a psi past that
coryjames is offline  
Old 04-25-2010, 09:16 PM
  #30  
Senior Member
10 Year Member
5 Year Member
SL Member
iTrader: (1)
 
gingles's Avatar
 
Join Date: Jul 2004
Location: Denver, Colorado
Posts: 1,881
Default

timing? whats that? e85 says screw timing i want more.
gingles is offline  
Old 04-25-2010, 09:20 PM
  #31  
Senior Member
10 Year Member
5 Year Member
SL Member
 
coryjames's Avatar
 
Join Date: Jul 2007
Location: Arvada, CO
Posts: 7,024
Default

yes e85 is like a sorority girl on spring break more more and then some more
coryjames is offline  
Old 04-25-2010, 09:37 PM
  #32  
Senior Member
10 Year Member
5 Year Member
Fresh Crew
SL Member
 
ecko04's Avatar
 
Join Date: Jul 2008
Location: Atlanta/Charlotte/Auburn
Posts: 2,243
Default

Originally Posted by jsmillie07
That's why i said to contact them to see what they think. I know it really depends on the tuner.
Actually it doesn't. Reputable tuners do not tune for power, if a tuner ever tunes for power that's a huge problem. Most tuners won't even say "sure your car can get xxx whp", they'll say "we'll see when we get it on the dyno", tuners are less worried about power and more worried about reliability so you don't hop out there and throw a rod through the hood.
ecko04 is offline  
Old 04-25-2010, 09:52 PM
  #33  
Senior Member
5 Year Member
SL Member
 
jsmillie07's Avatar
 
Join Date: Feb 2008
Location: Pembroke Pines, Fl
Posts: 126
Default

Originally Posted by ecko04
Actually it doesn't. Reputable tuners do not tune for power, if a tuner ever tunes for power that's a huge problem. Most tuners won't even say "sure your car can get xxx whp", they'll say "we'll see when we get it on the dyno", tuners are less worried about power and more worried about reliability so you don't hop out there and throw a rod through the hood.
I agree with you that using a tuner that just tunes for power is bad, that's the reason why I won't take my car to CFT. Just some tuners are a little more conservative then others. Based on their experience and how they tune they might tell you that you need bigger injectors or more psi if you want to hit a certain power range.
jsmillie07 is offline  
Old 04-25-2010, 10:42 PM
  #34  
Senior Member
10 Year Member
5 Year Member
Fresh Crew
SL Member
 
ecko04's Avatar
 
Join Date: Jul 2008
Location: Atlanta/Charlotte/Auburn
Posts: 2,243
Default

Originally Posted by jsmillie07
Based on their experience and how they tune they might tell you that you need bigger injectors or more psi if you want to hit a certain power range.
Agreed
ecko04 is offline  
Old 04-25-2010, 10:49 PM
  #35  
Senior Member
10 Year Member
5 Year Member
SL Member
 
m6ar2cel6oTC's Avatar
 
Join Date: Aug 2006
Location: Miami
Posts: 4,888
Default Re: Turbo PSI Question

Originally Posted by coryjames
i run 12-12.5 afrs pull no timming till 8 psi then pull a half degree a psi past that
That's exactly my theory but no e85 for ne just meth.
m6ar2cel6oTC is offline  
Old 05-05-2010, 03:41 AM
  #36  
Senior Member
5 Year Member
SL Member
 
Joselo's Avatar
 
Join Date: Nov 2006
Location: --*Puerto Rico*--
Posts: 418
Default

Hey Guys I'm new to the F/I forums and was wondering (sorry if its a bit of threadjacking) if I need to worry about anything If Im using a Greddy Kit + 550 Inj, because I want to run at 10 or 12 psi but I don't know if that would be "safe" any help guys?
Joselo is offline  
Old 05-05-2010, 11:44 AM
  #37  
Senior Member
10 Year Member
5 Year Member
Scikotics
SL Member
 
3min3m2's Avatar
 
Join Date: Apr 2006
Location: West Virginia
Posts: 1,459
Default

With boost, safe is an arbitrary term applied to set-ups that have yet to destroy motors. 10-12 psi is not in that category generally(IMO)

but if u have a good tuner and clutch, have fun.
3min3m2 is offline  
Old 05-05-2010, 01:39 PM
  #38  
Senior Member
10 Year Member
5 Year Member
SL Member
Thread Starter
 
RichTc's Avatar
 
Join Date: Jul 2008
Location: Long Island, NY
Posts: 458
Default

I run 10psi on my greddy kit (with 550s) and haven't had any problems. Agree with the poster above, that it is all in the tune.
RichTc is offline  
Old 05-05-2010, 01:48 PM
  #39  
Senior Member
10 Year Member
5 Year Member
Music City Scions
Scikotics
SL Member
 
rhythmnsmoke's Avatar
 
Join Date: Jun 2005
Location: TN
Posts: 16,747
Default

Originally Posted by RichTc
It's kinda funny, people make such a big deal about buying the "most powerful kit" as most will never realize the full potential of their kit (as most do not build their motor, from what I can gather).

It would seem to me that if your not planning to build out your motor, you should just buy the cheapest kit you can find (as your motor will most likely limit you before your kit does).

Would have to disagree with that. More and more people are building their motors these days than when F/I first started with the tC. The people who don't build their motor, usually don't buy the most power/potential kit.

And for those that do and don't build, it's like that old saying...."I'd rather have it and not need it, then to need it and not have it".

Boost is addictive and once you start turning the BC up, you never want to go back down or stop for that matter.
rhythmnsmoke is offline  
Old 05-05-2010, 05:10 PM
  #40  
Senior Member
10 Year Member
5 Year Member
SL Member
 
m6ar2cel6oTC's Avatar
 
Join Date: Aug 2006
Location: Miami
Posts: 4,888
Default Turbo PSI Question

Originally Posted by rhythmnsmoke


Would have to disagree with that. More and more people are building their motors these days than when F/I first started with the tC. The people who don't build their motor, usually don't buy the most power/potential kit.

And for those that do and don't build, it's like that old saying...."I'd rather have it and not need it, then to need it and not have it".

Boost is addictive and once you start turning the BC up, you never want to go back down or stop for that matter.
X1,000,000!!!
m6ar2cel6oTC is offline  


Quick Reply: Turbo PSI Question



All times are GMT. The time now is 07:34 AM.