i just got my car dynoed by laurence at DSR and it only made 184.9 whp and 153.1 torque at 7psi. its a b18c1 w/ a garret t3 .42A/R, JRC FMIC, DSM 450cc injectors, and hondata s200b. does this seem a little low to you guys? alot of people tell me i should be making more, but laurence didnt mention anything. all he said was my turbo was running out of breathe in the higher rpms because its so small. what could be wrong?
thanks.

 

shitty numbers. sorry. yea try a bigger turbo tho, you will free up alot of power that way

 

i wanted this turbo for the midrange and quick spool. if these numbers are low for this set up, then i dont think getting a bigger turbo would solve anything. it would just have low numbers for the bigger size turbo.

 

post up the dyno graph. im sure it should feel pretty strong down low though right ?

 

wow thats very low

check the engine comp to see if it's any good
u sure u don't have a boost leak, those are some sorry *** numbers for a turbo gsr


i made low numbers at dsr as well
but it was due to a leak on the holders near my intercooler

 

yea it feels good down low but i think it should make better numbers. im pretty sure i dont have any boost leaks. i had problems with leaks the first time i tried to get it dynoed. this is my second time at dsr after i fixed all my problems. it held a constant 7 lbs so it should be ok. i dont know if i can post the graph but ill try.

 

Are you running stock exhaust and stock cat?

 

open downpipe with electric cut out

 

That is weird, a D16Z6 with the same size turbo can almost make that amount of power. Could it be a very conservative tune?

 

thanks for the quick reply guys. Laurence ( my tuner) says its between conservative and maxed out.

 

What are the specs on the turbo? Turbine size? Turbine a/r? Compressor wheel trim?

It sounds you have a very small T3...like a 45 trim compressor.

Sonny

 

yes indeed its a very very small t3 turbo, off a volvo turbo i believe.

i had a sabb t3 and the turbine housing wheel opening was bigger than the one on his turbo.

 

could it be that my small turbo has to push through all the piping and FMIC? i have 1.5" piping from the turbo to one side of the fmic, and 2.5" piping the rest of the way to the throttle body.

 

I really doubt that the i/c piping is the problem. I think you need to spec out what you've got before you do anything else. It will be a little more difficult to do while it is in the car, but it's the first thing that I'd do.

If it turns out that you have a decently sized T3 (and it sounds like you don't), you can look for other problems. If it is as small as you implied, that turbo just probably won't ever make much power with your setup.

Sonny

 

yea its a pretty small turbo. i think the smallest of the t3s. it came out of a volvo. this sucks.. i spent half a year slowly putting my turbo together. got it tuned and running..and now i wanna change my set up the same day its done. =/

 

Well the good news is that since you chose such a common turbo and since T3's are all generally pretty interchangeable, an upgrade is not that hard to do.

Plus remember, you are only running 7 psi of boost.

Sonny

 

would running 2 extra lbs make much of a difference? ive seen people make way more power than me at 7lbs on a b18c1.

 

thats horrible numbers sorry to say. My friend w/ a gsr and greddy kit is producing well over 200 HP

 

i only made 203whp on my gsr turbo but i still had stock exhaust and cat and the motor was already leakin oil thru the rear main seal, my car was also done by laurence at dnr


Modified by wsiracerz at 3:27 AM 9/28/2004


Modified by wsiracerz at 3:28 AM 9/28/2004

 

That doesn't quite add up... Are you sure your car doesn't have any other problems besides the turbo related parts?

 

damn dude. im surprised. i thought even with that small of a turbo you would see more gains. turn up the boost more.

 

thats depressing numbers.....this is also coming from a sohc'er. ur tuner should have known better......especially it being a turbo gsr......even 200 would be still really low IMO.

 

Something isn't right. . .

7 PSI is 7 PSI, granted on a bigger turbo there will be more CFM - but unless this turbo is out of it's efficiency range - you should be putting up much bigger numbers.

Is the turbo internally gated? How are you regulating boost? If it is internally gated, how many PSI is the stock spring?

@ 7 PSI - Your car should be putting down 220 - 240.

Are you running out of fuel? Do you have an aftermarket fuel pump? It should be good to 7psi, but possibly not.

Are your 450's used - if so, did you have them cleaned and tested?

What year is your teg? If you are obd2, then you need a resistor box in line to your injectors, or a 10ohm 10watt in line on each.

What is your timing set at?

What plugs are you running and at what gap?

A few questions to get you started on the trouble shooting process.

 

I don't understand why you'd only run 7 PSI? I mean c'mon crank the boost on that measly t3 and you'll prolly make better numbers.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EpDarks &raquo;</TD></TR><TR><TD CLASS="quote">I don't understand why you'd only run 7 PSI? I mean c'mon crank the boost on that measly t3 and you'll prolly make better numbers. </TD></TR></TABLE>

Beat me to it. Run 12 lbs... it's a tiny t3 on your 1.8L gsr. You need more boost. Smaller turbos don't make big power on low boost!! Just turn it up... You got nothin to lose.

Matt