Stock Boost [Merged 5-7]

[Gs-tHaVoC]

hehe kinda dumb question but whats stock boost on my car? just wondering if its worth it to install a boost controller and gauge without bov thats all. thanx

 

[Lunch_Box]

My stock boost on my 95 GSX was 12 psi. I believe that 1G's are around the 10 psi range.

 

[Mirage2LTurbo]

I know for a fact 2g's run more boost stock than 1g's.. I coulda sworn 2g's were .9 bar..

 

[DeviousOne]

You guys are telling me ball park where i was thinking do any of you know of a web page that has stock boost listed and stock specs. Like I own an FD and i have 3 web pages that list everyone on my car is there a page like that for DSMs?

 

[DSMfânâtic]

Copied directly from www.1000q.dsm.org


What is the stock boost pressure on a [DSM]?

Many questions of this type can be answered by the following references:

* A search of the Club DSM archives at http://search.dsm.org (alternate link here);
* Referring to the factory shop manual;
* Looking at the factory brochures;
* Reading the owners information manual.

1G cars have a stock boost pressure of 8-12 psi. 2G cars have 10-15 psi. The service manual allows lower pressures, but those are rarely seen in actual vehicles.

VFAQ is helpful

 

[MattnGsx]

Why the hell is this in the Advanced section :laugh: :laugh: :laugh:

 

[90TSIAWDTALON]

This ? might have been answered already, but i searched and couldnt find anything. How much boost would yall recommend running on a stock motor? Thanks

 

[Lunch_Box]

It all depends on the mods that you have done. Once you get that out of the way it depends on the condition of your motor. There are to many variables to give an exact number.

 

[VIPERBLUELX]

Just wondering what the most boost you have ran with a basically stock 1G with stock injectors and fuel pump.

 

[Myke Coxlong]

14-15 is safe 16 + is fuel cut range

 

[candela]

ive run about 22psi or so (C16)...

On a car that is bone stock with pump, you shoudl be cautious of reliability if running more than 16 or so.

 

[VIPERBLUELX]

14-15 is safe 16 + is fuel cut range

If you do the Mass Air mods it raises fuel cut about 3psi though, correct?

 

[ACKERSON]

You really need a logger to determine how much boost is safe. It varies from vehicle to vehicle. Do some more research, there is plent of info on this subject.

 

[Sk8er07999]

You really need a logger to determine how much boost is safe. It varies from vehicle to vehicle. Do some more research, there is plent of info on this subject.

Agreed.

 

[VIPERBLUELX]

My mods are 2.25" upper pipe, HKS throttle body elbow, 2.5" downpipe with no cat, k&n filter in stock can. My car is making 19psi and then slowly falls to 16psi and holds there till redline.

 

[DSMTurboEclipse]

I ran 15psi on a stock car except for muffler.

 

[GORBS88]

14-15 is safe 16 + is fuel cut range

Hard to believe... Every car is diff but with just a 190 i run 17-19psi... Hit fuel cut once on a cold day but thats all....dont recomend over 16 but can be done....

 

[Myke Coxlong]

well buddy i think he said STOCK injectors an pump not a 190

 

[GORBS88]

well buddy i think he said STOCK injectors an pump not a 190

Well buddy, did i say anything about bigger injectors....read it!! did it with just a 190!!!! thats all...

 

[ACKERSON]

It doesn't matter what all of you guys are running. I've tuned many dsm's and they are never the same. You can have two cars with the exact same mods and they are going to handle different amounts of boost safely. He needs a logger of some type to determine a SAFE boost level. So stop posting what you are running because it is irrelevant to his setup.

 

[v8s_are_slow]

buddy of mine has a 1g car and he's running 8 psi. he says it's stock but i just can't see it. thinkin it's more like 12 maybe? someone help me out here. i haven't run stock boost in so long that i can't remember. i have to help him get his car going faster. thanks!

scott

 

[v8s_are_slow]

come on guys. help me out here. surely someone knows this one. just not me. haha!

 

[Black91TSiAWD]

Mine runs at 8psi. I've been wondering too, I do hear alot of people say 10, 11, 12, whats the real deal? Some just run lower psi? Alot of people wrong?

 

[ChrisFlo]

I've heard 11-12 is stock. Lower readings may be the result of a leak.

 

[psychlow]

I've heard 11-12 is stock. Lower readings may be the result of a leak.

Or a malfunctioning wastegate, a worn actuator, or issues with knock registering on the knock sensor.

Cracks around the wategate hole on the turbine housing can cause low boost if they're severe enough, but usually don't. A worn wastegate actuator spring will cause the arm to move prematurely. Knock will cause the ECU to stop bleeding air via the BCS, which will lower boost to about 9-10PSI. Differences in pressure gauge readings could show this as 8-9PSI....

 

[v8s_are_slow]

i know 12 is around stock on a 2g. but think it's a lil lower on a 1g. just wish i knew that figure. he's running 8 psi and i'm thinkin that's as low as the wastegate will allow for. thinkin something's up. he's trying to figure out why a buddy of his can outrun him and i'm trying to secretly help him out so he can be the faster of the 2. if he's on low boost, that'd probably be the reason why i'm sure. just trying to help out though.

thanks for any help on this.

scott