my Rb20det dyno'd 253 whp 10 psi

[atticus]

stock RB20

T3/T4 60/63 Garrett turboTurbonetics 35mm wastegate, 9psi springAEM EMS3 bar maptop hat intake manifold

253 whp with 210 tq

wanted to see what you guys thought about the numbers compared to what youve seen.

[rb240det]

Those are some pretty decent numbers! I'm hoping to get mine dynoed in the next few weeks up at P1 Performance in Fort Mill, SC. Hopefully the numbers will be as high as I'm hoping but we'll see.

90' 240sx hatchbackRB20DET3" exhaustTubular exhaust manifoldFMICNismo FPRSAFC-II13psi

[Yellow4g63]

stock RB20

T3/T4 60/63 Garrett turboTurbonetics 35mm wastegate, 9psi springAEM EMS3 bar maptop hat intake manifold

253 whp with 210 tq

wanted to see what you guys thought about the numbers compared to what youve seen.

Thats pretty good HP for 10psi. You could prob get more out of it with more tunning.

[Joe]

allright this quickly turned into a for sale thread.

if you want to sell the car use the post at the top of the forum. for you, you MUST include pictures. if you have to, email them to me and i will host them for you [email protected], i refuse to belive its a 98 240sx for 2500$.

i cleaned up all the stuff related to the sale of the car.

[Wulfgang]

Those numbers suck. If 250 hp is where you were going, then you could've sure saved lots and lots and lots and lots of $$$$. Guys have done that on stock setups + boost controller.

If your goal was more like 18 psi, then go back to the dyno and show us those numbers, since they will definitely look much better.

[Andrew85cm]

You gonna upgrade those injectors. So you can make some real power. Shoot when I slap a SC61 on mine I dont want 250 I want 350 lol. Throw some more boost at her she can take it. Make that car a beast.

P1 is a good place I got my car initially tuned there with my SAFCII. They are good guys and are real knowledgeable. They got my car not to mis on 2 cylinders. Hopefully the 7mgte injectors and external tial will go in with the turbo I have yet to order then I will be set. Those are good numbers for 10 psi good job. How do you like that AEM EMS. It working out for ya. I am going burned rom for some general timing tuning and set it up for the 440 cc injectors then fine tune with the SAFC. It's a street car I dont need to drop 1600 for a stand alone not yet anyway.~ANDREW

[tight240]

I havent seen nobody put up thoes kinda of numbers on stock boost. Anybody can buy a boost controller, but if he's making that kinda of power on stock boost, who the hell knows what he's going to get at higher boost levels, like 18psi.

[Carl H]

man you guys dont want to know what my car dynoed at........numbers are so sad, course there are still problems.....wastegate is still dumping into the engine bay and the ECT sensor took a crap when we were dynoing so there were a few problems with it.gonna fab up a dump tube today and see if that fixes the majority of the problems....

[fly240]

rb20 with t3/t4 and make 250 at the wheel is pretty good number. my rb25 stock at 10psi make 250...if the t3/t4 in rb25, I'm very sure it will be over 300hp at the wheel...

well done with the turbo swap....

[atticus]

thanks for the props and yes Ive never seen such high numbers at 10 psi either, anyways with injectors and 18-20 pounds it would be 350-400. anyways i totalled the car so i cant prove anything now, but I thought i would give some of the RB20 guys some motivation cause i know i was worried that the motor sucked cause no one ive seen had really done enough to their RB20 to make power, but as you see its possible.

[Yellow4g63]

thanks for the props and yes Ive never seen such high numbers at 10 psi either, anyways with injectors and 18-20 pounds it would be 350-400. anyways i totalled the car so i cant prove anything now, but I thought i would give some of the RB20 guys some motivation cause i know i was worried that the motor sucked cause no one ive seen had really done enough to their RB20 to make power, but as you see its possible.

How did you total the car? sorry to hear that.

[Wulfgang]

243 rwhp at 10 psi with stock SMIC, stock intake mani, stock engine management, and UNTUNED:

zerothread?id=100402

So your EMS, intake mani, and FMIC (do you have FMIC?) bought you another 10 hp. Obviously, the stock turbo chokes the engine too much. That's why you guys are seeing such huge improvements at stock boost.

Btw, I like your setup... I'm only complaining that you didn't turn up the boost! Someone just did almost 300 hp on stock injectors, so you could've definitely done better with your setup.

[eh?]

Btw, I like your setup... I'm only complaining that you didn't turn up the boost! Someone just did almost 300 hp on stock injectors, so you could've definitely done better with your setup.

I saw that thread, 300rwhp on 270cc injectors? probably running unsafe fuel pressure and duty cycle.

[skillzilla]

My stockie at 12 psi made 230/220, dunno why you had such a low torque number. I would think theyd stay pretty close to each other all the way up to like 350.

[Yellow4g63]

My stockie at 12 psi made 230/220, dunno why you had such a low torque number. I would think theyd stay pretty close to each other all the way up to like 350.

What was your A/F ratio at? The most I did was 218hp at 12psi I think. Tho My A/F was at 10.1 lol

[Wulfgang]

I saw that thread, 300rwhp on 270cc injectors? probably running unsafe fuel pressure and duty cycle.

Nope. 11-11.5 AFR. If his injectors were crapping out because of too much duty, he wouldn't have been able to hit those low AFRs. Remember that a good turbine/exhaust system decreases brake specific fuel consumption (BSFC), thus allowing the use of smaller, more efficient injectors. Probably on a stock turbo he wouldn't have been able to hit 300 hp, but it appears he had no trouble with his T3/T4. He also said nothing about any fuel pressure modification other than using a Walbro. Here's the thread:

zerothread?id=123090

[driftjunke]

That was us, that car is getting the 440's, fmic, and we're gonna shoot for 18 to 20 psi. No fuel pressure mods other than the walbro so I am sure the stock regulator is gone. Attiucus, you're Johnathons buddy with the Black Kouki that had the SDS that Dave did right? I'd love to see the AEM with 600+cc injectors and more boost.

Maybe we'll have to do it.

Eric