R32 GTR dyno numbers pump gas

[Dirty3092]

R32 GTR dyno numbers pump gas

So this is to help some people out and not let them continue on these crazy pipe dreams lol. First off my car was dynoed at all 4 wheels on as they called it the heart braking dyno and I learned why. So before I post a video here's the specs 

temp out side today maybe in the 70s 

sea level elevation 

1990 Nissan R32 GTR 

42,000 miles 

stock turbos 

Apexi standalone with stock Mafs 

greddy suction Kit 

hks hard piping 

hks Bov 

Arc intercooler 

blitz front pipes 

stock turbos stock manifolds stock dumps 

test pipe to 3.5" hks exhaust 

stock fuel injectors rail pump and pressure 

Greddy Profec the new one 

my car on 93 octane made 325hp and 301 TQ at  18 PSI and then the turbos said hold my beer and watch this. So long story short a custom set of garrets 2860s is gonna be made ported manifolds that are jet coated with coated tomei dumps the new style. I find it hard to believe the stock fuel system supports 450hp now when we where at 75% duty cycle at 18 pounds of boost and 325hp. So hopefully with the custom set of garrets I can get closer to that 400awd numbers but from what my tunning guys said it's gonna be hard with injectors haltech pump rail and stage 2 cams I'll be happy to see high 400s 

IMG_4104.mov

 

Link to the dyno video 

 

Edited April 13, 2017 by Dirty3092
Added a video

[GTSBoy]

The stock fuel system supports ~450HP AT THE ENGINE.  Your 325HP is measured at the wheels, and it will be some larger number than that at the engine but because you're in the US and we don't trust the at wheels numbers to be comparable to what we know we get here in Oz, I can't tell you what the engine power number might be.  As an example, if you were making 325HP at the wheels on a Dyno Dynamics here in Oz, we'd expect you'd be nearly running out of injector already, you'd be up over 400 HP at the engine.

[Dose Pipe Sutututu]

Stage 2, what about stage 6?

Americans and their stages.. Just as bad as VAG owners with their stage 1, 2, 3 reflashes for 1.2k lol.

Get some better injectors and run a bit more boost. Boost doesn't kill motors, rubbish tunes do.

Also, either throw out your HKS exhaust for a proper 3.5" custom system or cut apart the muffler and remove the internal restrictor, then weld it back together. 

[Dirty3092]

5 hours ago, Dose Pipe Sutututu said:

Stage 2, what about stage 6?

Americans and their stages.. Just as bad as VAG owners with their stage 1, 2, 3 reflashes for 1.2k lol.

Get some better injectors and run a bit more boost. Boost doesn't kill motors, rubbish tunes do.

Also, either throw out your HKS exhaust for a proper 3.5" custom system or cut apart the muffler and remove the internal restrictor, then weld it back together. 

HKS stage 2 cams ? Or is there another name for them.  The reason we didn't throw injectors in it is because I didn't want to spend the 3500 on doing the fuel system all at once. Now where doing 28650-5s with billet wheels ported factory manifolds since everything else is known to crack and the new cast Tomei dumps. The hks exhaust im running now has been fully gutted the silencer has been removed and the can has been gutted and straight piped. I don't know how it is in Australia but everything for the GTRs is a arm and a leg. Second hand parts doesn't really exist. So after all the turbo stuff is done we will retune the car and I'll have to deal with low boost untill it goes back for full fuel upgrade and Maxx Ecu. Then wait some time and upgrade the oil pump oil cooler Greddy intake manifold and HKS stage 2 cams with head studs and a gasket. When I started out with this car I wasn't expecting to spend 15k to make the same amount of power as my 5 series lol 

[Piggaz]

Oil pump is an engine out job.

while you're there ....

[Dirty3092]

38 minutes ago, Piggaz said:

Oil pump is an engine out job.

while you're there ....

Can it be done with the full subframe out of the car. 

[KiwiRS4T]

That'll help. You don't need to spend $3500 on fuel unless you are after monster HP - just new injectors and fuel pump. Stock inlet manifold will be fine. Just dump the twins for a single,  get a Link or something and wind up the boost!

Scroll down this page and have a look at the video: http://www.goodezilla.com/rb26dett-skyline-gtr-single-turbo-vs-twin-turbo

[Piggaz]

Uh oh. Now you've done it, Kiwi. ?

[Sick_R31]

1 hour ago, Dirty3092 said:

HKS stage 2 cams ? Or is there another name for them.  The reason we didn't throw injectors in it is because I didn't want to spend the 3500 on doing the fuel system all at once. Now where doing 28650-5s with billet wheels ported factory manifolds since everything else is known to crack and the new cast Tomei dumps. The hks exhaust im running now has been fully gutted the silencer has been removed and the can has been gutted and straight piped. I don't know how it is in Australia but everything for the GTRs is a arm and a leg. Second hand parts doesn't really exist. So after all the turbo stuff is done we will retune the car and I'll have to deal with low boost untill it goes back for full fuel upgrade and Maxx Ecu. Then wait some time and upgrade the oil pump oil cooler Greddy intake manifold and HKS stage 2 cams with head studs and a gasket. When I started out with this car I wasn't expecting to spend 15k to make the same amount of power as my 5 series lol 

There are 2 different types of HKS step 2 cams, post the lift and duration not stage or step. Both require new valve springs, recesses in the pistons and head clearance around the cams and that's an engine rebuild job.

What were they going to do for this $3500 fuel system upgrade? sounds like someone is ripping you a new one. A walbro 460 fuel pump, some 1000cc - 1600cc injectors and replace the old rubber fuel hose, job done.

Oil pump is an engine out job, the sump needs to be removed and the only way to get to all the bolts on the sump is to remove the gearbox.

As kiwi said get rid of the twins and put a Borg Warner EFR 8374 on there instead.

[Piggaz]

8374 > nugget -5's.

[TXSquirrel]

How was your Apexi tuned?  Using the hand controller or loading custom tables?

I have seen 3 R32 GTRs tuned at the same 18psi, with yours being the 4th, all locally in Texas.  And man the results are all over the place...

[Dose Pipe Sutututu]

If a tuner choses to "tune" your car using the hand controller, they deserve to be shot.

[fatz]

Wtf is pump gas

f**k me dead

this joint has gone to shit

rol racing, 93 pump gas lol

 

 

[GTSBoy]

Op is in the US Fatz.  They talk diff'rent over there.

[TXSquirrel]

I got a good chuckle out of that!

By pump gas we meant a car was running on petrol from a typical petrol station without fuel additive or adding higher octane gasoline.  Since many dyno facilities have much higher octane gasoline ready on site to boost / inflate dyno numbers, typically stored in large jerrycans.  So his petrol came from a "pump" station, as opposed to this:

And octane number 93 was just referring to the slightly better "pump gas" we can get here, because in some areas 91 is the highest octane available, most notably California.

Going back to my previous response, I think OP's tune was very likely done on Apexi's hand held controller due to the limited support we get here.  Even so, I did encounter another R32 running on upgraded GTX Garrett twins with Bosch 1000cc and Link ECU only made 350awhp on 18psi, or 260awkw on 1.24bar.

Edited May 15, 2017 by TXSquirrel
repost picture

[Dose Pipe Sutututu]

^ yep, tuner needs to be shot

[fatz]

7 hours ago, GTSBoy said:

Op is in the US Fatz.  They talk diff'rent over there.

Thank f**k if it was a ausi they need to be punched in the neck