Finally Got My Car Tuned - Dyno Results

[Shaun]

Gday,

Just got my car tuned after being off the road for about 3 years. Ive put an RB26 engine (and an R33 gearbox) in an R32 gtst. The tune is a preliminary one, so ive gotta run the car in and go back in about 1500kms so they can turn the boost up.

The car made 345 rear wheel kilowats on 17 psi and 98 octane. There should be more to come, but after driving it home from Silverwater in the wet, im not sure more power is a good idea in a rear wheel drive application! As soon as it gets to atmospheric, it spins the tyres in the wet; even at 100km/hr on the freeway. Pretty scary, as ive been driving a 100kw carolla for the last 3 years! Anyway, have a look at the dyno sheet. Im just happy to have it on the road.

The specs are as follows:

R33 RB26 (prepped block etc, compression is 9.0:1)

ARP studs and bolts throughout

General head reconditioning but no porting or polishing

Standard cams

HKS cam gears

CP Pistons 20 thou over

Prepped standard rods

N1 oil pump

Tomei sump baffle and head oil restrictor

R33 gtst 5 speed

Jim Berry modified Nismo 5 puck clutch

Autronic SM4 computer

Autronic boost control

Garrett GT35r turbo with 1.06 turbine housing HPC coated

Tial 44mm external wastegate with 17psi spring

Tial 50mm BOV

600x300x100mm intercooler

Earls 16 row oil cooler

Stainless manifold bought from GCG. Modified with extra support brackets and HPC'd

3.5inch dump, HPC'd and wrapped

3.5 inch Trust exhaust

Walbro in tank pump (255l/hr i think)

Surge tank with Bosch 044 in line (i also used the HICAS lines as fuel lines)

Sard 700cc injectors

Edelbrock fuel reg and modified standard fuel rail

Ford falcon twin thermo fans with 50mm alloy radiator.

I think thats it.

Just gotta get it engineered and registered now.

Shaun

PS Im really happy with Dave and Jim at Silverwater Automotive; theyre very good at what they do and looked after me well.

Edited February 28, 2008 by Shaun

[dead32]

a set of cam's would open up more window's to wheel spin!.. great result considering how long youve been waiting. hat's off to ya mate

[Shaun]

Thanks mate,

I dont think i can use aftermarket cams in the current head because, due to a previous engine failure, the head had to be machined significantly (tunnel bored on camshaft bearing surfaces). This means that larger cams would reduce the valve to piston clearance too much. Anyway, thats what the head machinist said. Ill be looking around for a cheap second hand head and do it up while this one is still in the car.

Shaun.

[Roy]

LOL, i just read dead32's sig In this case the RB26 is surely Jen Hawkins

Have you had a chance to drive it in the dry yet? Interested to hear what rim size and tyres you are running. Whether you are still running std R32 diff ratio or changed to R33 diff ratio. What shocks you are running and what rear end alignment you are running.

Very interested to read how an R32 GTSt with this sort of power can, or cannot hook up

[phat_man]

looks awesome mate, both the car and the dyno sheet, well done. worth the wait.

congrats.

[r33cruiser]

shiiitt. im not even going to ask how much it has cost u

[N1GTR]

Fantastic result!

Congrats!

[R31Nismoid]

Having seen the results for the 1.06... what was your reason for choosing it?

Do you think the .82 would be a better choice? (Or maybe twins?)

Just seems to me a tad late to have 250rwkw/5000rpm 300rwkw/5700

Should be coming on 1000-1500rpm sooner possibly?

I wouldn't worry about stock cams, nothing wrong with them at all, maybe just have a bit more of a fiddle with the cam gears

Good to see ya set-up finally running with all the drama's you've had with getting to the end, must be worth it to drive home

[Shaun]

LOL, i just read dead32's sig In this case the RB26 is surely Jen Hawkins

Have you had a chance to drive it in the dry yet? Interested to hear what rim size and tyres you are running. Whether you are still running std R32 diff ratio or changed to R33 diff ratio. What shocks you are running and what rear end alignment you are running.

Very interested to read how an R32 GTSt with this sort of power can, or cannot hook up

Roy,

I havent driven it in the dry yet, ill update you when i do. Im using 17in Enkei Tarmac Evo's with 255 rears. I was wondering about the diff ratio, as ive still got the standard R32 diff in it atm. It just felt a bit wierd to drive, i find it difficult to explain; like it was revving higher than it should have been for the speed i was doing. Having said that, it could have been my speedo that was slightly out due to the sender modification. Do you think it would benefit from the r33 diff (i dont know much about the different diffs and their ratios).

Its got whiteline springs and standard everything else at the moment. Ive got Sydneykids bilsteins and sway bars to go in it yet. Ive removed the hicas, but as for rear end alignment, im not sure; nothing too radical, as it for street use.

When it spun the wheels (at whatever speed), it didnt kick out at all, it just stayed straight which was good.

Nismoid,

Yeah, ive had some dramas and bad luck, so its good to finally make some progress.

I agree with you. I originally had the 0.82 rear on the turbo, as i thought that this would be a really streetable (for a single) package. After my last engine failure, i was advised by those who have more experience than me to change to the 1.06ar, as boost was too early with my higher compression ratio. I must admit, i was hoping the boost threshold would have been lower, but this is something i can play around with later. Actually, i dont even know if they played with the cam gears this time. They might be waiting til i bring it back.

There's no denying that twins are an excellent way to go, and if i knew what i know now, maybe i would have gone the gtss or 2530 route, but ive always wanted a single and external gate. Its done now and im happy for it.

R33 cruiser,

I dont even know how much its cost me as i dont add it up. It riuns the enjoyment! But like all of us, i wonder why i bother sometimes. Im suprised im still enthusiastic about it after 4 years.

Ive done all the mechanical install and fabrication work, so that saves a lot of money. I actually dont think you can put a price on the skills you develop when performing major mods yourself. But if i had to guess, i reckon about 50 grand including bringing the car over from Japan. That includes all the mods to the rb20 before it tho.

Shaun.

Edited February 28, 2008 by Shaun

[R.3.2.G.T.R]

wow great work bud, now time to enjoy it

[johnbarry88]

awsome man great news at least now I know what Ill be looking at once mine is up and running. Im using vertually the same parts you are except ive got a gt3082r with a 1.06 on it if we can make 320rwkw before we put cams in it ill stoked...anyways good luck cant wait to see the final tune results ps. post more pics up lol

[OFENSV]

Nice result, dont know how you can go 3 yrs with it off the road. Was killing me when mine was off for about 6 months lol

[Shaun]

awsome man great news at least now I know what Ill be looking at once mine is up and running. Im using vertually the same parts you are except ive got a gt3082r with a 1.06 on it if we can make 320rwkw before we put cams in it ill stoked...anyways good luck cant wait to see the final tune results ps. post more pics up lol

Sounds good. I had a gt30 (with 0.82) on the rb20 engine and it was great. Boost didnt come til about 4200 on the rb20, so it should be nice with the extra capacity. Good luck with it.

Some more pics:

[GeeTR]

Awesome to hear this is running, have been following its progress, and staring at your engine bay for a GooD while!!!!!

You must be itching to give it a good hiding in the dry

3540 repreZent!!!

edit: fark that looks sooo good in white

Edited February 29, 2008 by GeeTR

[Shaun]

Awesome to hear this is running, have been following its progress, and staring at your engine bay for a GooD while!!!!!

You must be itching to give it a good hiding in the dry

3540 repreZent!!!

edit: fark that looks sooo good in white

Thanks mate, cant wait to take it for a spin in the dry. Yeah, i spent some time polishing; once you polish one thing, you've gotta polish the next! Im just disappointed that i didnt paint the engine bay during the build. I can always do it later though.

Shaun.

[Angus Smart]

I'm going to bump this up a bit..

I'm considering going the single route..

which gt35 do you have?

i'm kinda looking at the GT3582R with probably the .82 rear or if someone suggest's better otherwise.

would be going onto a stock(i think) 34 n1 motor. with cams and looking at dry sump.

i would like some response, but also aim for at least 350-400kw @wheel mark.

[nizmo_freek]

VERY nice! the engine and car both look spotless, well done!

[Swiper the Fox]

single turbo's and gts-t's are both ghey

mods please close thread

[STR8E180]

thats a real good amount of power for standard cams

im under going a simlar setup with my RB26 but im using a GT35 with anti surge but with a smaller exhaust housing compared to u and im also using HKS step 1 camshafts and camgears

Edited March 13, 2008 by STR8E180

[Beer Baron]

good to see your thing up and runing after all your dramas mate

wheels are nice too, love the tarmac evos!