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Sr20AU

Normal Dyno figures?

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Posted (edited)

Yo, so my s15 originally was an sr20de i bought a sr20det engine put it into my s15 that was already been put together.

Specs

GT2871R - that blew up after being tuned on the dyno it got taken for a test run right after the tune and blew up coming back to the shop. Since then bought a brand new GT2871R From garrett and havn't taken the car back to get it retuned on the brand new Turbo. JNot sure on trim and such but i do have all part numbers to find out if your curious.

740CC nismo injectors

DW300 fuel pump

Z32 AFM

Spit fire coil packs

Stock airbox

Stock BOV

Front mount intercooler 

Tomei Cam's 260/11.20

3inch exhaust

 

i paid 4K for the engine running and all that has 93K on the clock.

cars running on 14PSI on this dyno test. I want to know what else i can do to produce more power and is this normal figures all this is on a NISTUNE BOARD. if it is pretty low power for the mods the engine has installed on it could it be due to the turbo being on its last breath why it had such low figures then blew up straight after the tune then test ran.

 

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Edited by Sr20AU

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Firstly, all dyno's are calibrated differently, so it's possible this is a low reading dyno.

Looking at your boost curve, it tails away quite considerably towards the top end.

Despite your peak boost pressure being 14psi, it drops down to about 11.5psi by redline.

What are you using for boost control?

I believe the stock BOV is prone to leaking pressure once boost is raised too.

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Thanks for the reply

Sweet it was a Hub dyno if that makes a difference.

I've got a Stock BOV that runs into a turbo smart boost Tee straight into the cooler piping if thats what you mean. 

 

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Posted (edited)
It might be worth investing in an electronic boost controller.
Features like adjustable gain will allow you to prevent that high RPM boost drop off.
But perhaps you should run the car on the dyno again with the new turbo first.
 
 
Edited by 200VIA

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Posted (edited)
2 hours ago, 200VIA said:
It might be worth investing in an electronic boost controller.
Features like adjustable gain will allow you to prevent that high RPM boost drop off.
But perhaps you should run the car on the dyno again with the new turbo first.
 
 

Yea i'm really curious to see if the new turbo would make a difference at all. Since the old turbo was obviously on its way out if it blew up literally right after the tune on a test run around the block. i might have to invest into a Boost controller aswell im just curious with my setup i heard the car should push 220-240kw at ease at like 18-20PSI. why im asking some questions about why it was 190 even if the dyno shows lower figures its still not 220kw atleast lol

cheers for the reply

Edited by Sr20AU

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