Streeteg's RB25det Dyno Results

[streeteg]

Ok Ladies and Gents today was finally the day I was able to get my car on the dyno and make some power. The first time i made it to the dyno my MAF voltage was maxing out almost instantly due to the pressure built up by an inefficient filter (Hours of research later)

The Shop that did the tune was R/T tuning in Lansdale PA. I have been to my fair share of shops and this by far was the most professional well run place ive ever been to. Right down to business, knowledgeable staff and great equipment.

Anyway Here is the setup.

s2 Rb25detStock MAFIntake w/ no filterEbay FMICGreddy Type-s BOVGreddy intake manifoldHalman Boost controller (although boost control is a big issue I will be fixing upon the turbo upgrade because the boost started at 8 lbs, crept to 12 then fell off to 10 at the endYellow Jacket Coil PacksNGK iridium 1 step colder plugs @ .32 gapstock turbo elbow DP thingy3" exhaust from that elbow back to a HKS Carbon Ti Muffler, no cat no resonator.Stock Injectors @ what I think was almost 90% duty cyclebumped redline to 7k

The results uncorrected were I think 290whp and 243tq. The Maf was near maxxed out, as were the injectors.

The car is a 74 260z- that tips the scales at 2450lbs.

Anyway, below is the car and the dyno. I did a quick butt dyno launch outside my house and it is night and day.



thanks guys!

[Darius]

Healthy looking dyno but why does the AFR spike up at 7000 rpm? Is that just a blip from hitting the rev limiter?

This is off topic, but that is a beautiful pic of your car! What did you take that with? I'm looking at investing in a Canon XSI (I'm a n00b) in the near future. Any recommendations?

[streeteg]

AFR spike is a result of the rev limiter yes. As for the photography I am a complete noob. That picture was taken by a gentlemen named John Renna who is has done some outstanding shoots of the local scene here in NJ. I was lucky enough to scoop him for the price of on the house as he was building his book (and he is a datsun owner)

[Neejay]

Nice! What'd they use to tune? And what's your engine management setup?

[streeteg]

Ha great question! I cant believe i didnt list it. Power FC L-Jetro (MAF)

[74260zt]

Could that be from letting off the gas and causing a decel mode?