new dyno results, few questions though (pics)

[madsupra88]

sup guys, last weekend i went to the indy meet and had the car on the dyno. im a little confused on whats going on.

Mod list

T76 turbo
47mm external wastegate
255lph Walbro
Big FMIC


This is a stock 1JZ, R154, so from what im told it has the stock 370/380 cc injectors .

Now i know i can rev alot more than 6000 rpm, but the car kept running SO rich its not even funny, when i hit full boost, my a/r's past 4000-4500 just dump down below 10.0

I know a fuel pump wont have THAT much effect on it being super rich. any ideas

 

[empera]

fuel pressure?

wat else u have done?

 

[madsupra88]

Thats it, i mean i have my huge fuel system still (not installed ) because i dont have a computer or some kind of tuner on the car so i thought i should wait untill i get the standalone.

 

[dbsupra90]

what was the boost?

usually unless you are running uber high fuel pressure the best you are going to do is 1hp per cc. if that were the case, you should have been close to maxing out your injectors on the last pass. was that using your wideband or the dyno?

 

[madsupra88]

both my wide band and his wide band were hooked up and it ran way way to rich.

also checked out the car today and had 2 cracked coil packs which explains the horrible missfire top end

takng the car to the dyno again saturday and hope for better numbers.

 

[dbsupra90]

ahh that can be part of the problem. if you have ignition misfire you are dumping raw fuel

good luck on the next dyno!