Thread: Dynoed My Car Today!

Well I decided to dyno my car at school today to see if it was safe or not to full boost it. I really didn't expect the numbers I got haha I'm worried if I have enough fuel or not :/ Actual Dyno sheet will be posted next week.

It made 290HP and 312ftlb Tq.

I am running 370cc injectors at 4bar and a 300zx MAF. This is on a W10 Avenir with a GT28R and the boost hitting 20-22lbs because of a bad wastegate (gti-r). Also my clutch is a ACT Heavy Duty Pressure Plate with a Street Disk, not sure how long that will last lol.

Can I possibly up my fuel pressure a bit to support this or should I just upgrade my injectors. I had a wastegate ordered but have not received it yet so I'm kinda in a bind right now. I do not beat on the car to those boost numbers all the time and if I do it's for a couple seconds to not get the exhaust temp's to hot. The 02 sniffer on the dyno was way off reading like 15:1 and I found out through another car who had a wideband it's about 4-5 off, so meaning I'm running about 12:1 or so right now, maybe low 13's which I don't like.

LMK what you guys think! Thanks!

Dyno Sheet Up!

great numbers for one, yeah constant boost under those levels without knowing for sure on the a/f will only hurt if the a/f is not right on. From what ive learned you want to have your a/f around the 11.3-5:1 range any higher the exhaust temps will climb fast and it wont be enough fuel to keep it from detonating. It doesnt take but a second at those levels on that size turbo to take out the ring lands and for the most part you wont even hear it.

Id say et a nice wideband and go to a different dyno and retune. You should have no problem upping the fuel pressure a couple psi at a time to richen it a bit cuz your maxing those 370's out easily, especially with your peak torque that high, at your peak torque thats where you will be more likely to detonate. Thats where i detonated my de motor. You do have the advantage of lower compression and oil squirters.

Anways good numbers but id up the pressure a bit while tuning to see where it can land you.

The 290hp at 4bar on the 370's is that 100% duty cycle? or not, my teacher was asking me and I'm not sure. I have a AEM wideband going on this weekend and a SAFC that will also hopefully go on. This was also on 94 octane and dynojet dyno. Not gonna take it somewhere else cuz I get free dyno runs at my school

All of the cars that ran were around 15-16 including a 400hp supra which had the wideband and was reading low 11's and hit 10's at the end he was at about .5 lower then me on the 02 sniffer as we compared them.

I would say you are close if not at 100% duty cycle. I pretty much maxxed out the 370's at 10 psi with a gt2871r@270 whp. But that turbo pushes a hell of a lot more air than a t28.

I would say take it easy until you get your wg problem fixed and get an accurate wideband.

i think the numbers are sweet for a simple setup like this.

370cc inj+20-22 psi= asking to blow your motor. have fun

I ran 18psi daily on a T28 at 290whp. No problems here. Made a solid 290whp from 6000-7200rpm. Pretty meaty. Then I put on a disco and 555cc nismo injectors with a 3" exhaust and z32 maf. That woke her up!

Coheed, what fuel setup where you running?

And I'm not boosting to 20-22 lbs driving it. I did it on the dyno to see if it was safe or not to take it up there 1 time, and obviously it isn't lol Wideband is going on this weekend and I'll know for sure weather it's really safe. I'm gonna up the fuel pressure a couple pounds also.

What do you guys think I should go with injector wise? Nismos? Gti-rs? 50lb msd? I saw a i think gti-r or 50lbs setup with rail for $175 but I don't think it came with harness to use.

thanks to someone who posted in this thread, i've got some extra 440's that look fkn MINT. lemme know.

good numbers on the dyno. ima need u to b more available on AIM so i can ask my million turbo questions lol.

haha I'm always on

And 440s? gti-r's? and do you have the injector clips with them? I found a new rail for 90 lol