Rb26/30, R34 N1, R32 Gtr

[Skyline95]

Guys,

Im putting a Rb26/30 in my R32 and was wondering what sort ot RW and AWKW i could expect the mods are:

RB30 Bottom End CR of approx 8.8:1

CP Forged Pistons

Standard Rods with ARP Rod Bolts

Balanced Bottom End

Cam Gears

Power FC

R34 N1 Turbos

Nismo Fuel Reg

600cc injectors

Serviced RB26 Head

Exhaust from standard dump pipes back

Will this setup make 350rwkw and 300awkw?

Any suggestions or comments greatly appreciated.

[R31Nismoid]

rw to aw isnt a large difference

should make 300 for you j.

[pnblight]

what afms are you using and are you using std cams

[Skyline95]

Sorry forgot to mention will be changing to 80mm afms either Z32 or RB20 and yes using standard cams

[Wazz]

Exhaust from standard dump pipes back <<=== dont be stingy.. put some dump pipes on the f*kn thing.. you'll notice a massive difference

[Skyline95]

Well all depends on how much of a difference this is just a street car dont want to spend heaps all ready have another money pit dont need another lol

[Blitz]

Well all depends on how much of a difference this is just a street car dont want to spend heaps all ready have another money pit dont need another lol

How much power are you chasing Jordan?

[Skyline95]

How much power are you chasing Jordan?

<{POST_SNAPBACK}>

Well im using standard rods so as long as it makes 350rwkw i am happy with that, since i have to keep the revs below 6500-7000rpm

[itbmils]

Hey J

I have almost the same setup - but I have used the std RB26 bottom end.

I do have dump pipes – HKS style, with the short twin pipes from the turbo down to the engine pipe (+25awkw just from them I think)

I do have a 3.5” exhaust front to back

I also have the PFC and the Apexi EBC plus the R34 N1s, forged bottom end with std rods (linished and shot peened for good measure) with some minor head work too (competition valve seats are the main upgrade)

BUT I have not got 600cc injectors, I still have the std 440cc, and I still run with the std AFMs

Now for the good news - I currently get just over 300rwkw and about 292awkw running 18psi (easy)

I plan to change the AFMs and injectors within 6 months and expect to get to 350awkw comfortably.

My next upgrade ?may? Also include a bigger FMIC – and I hope to get the same power levels at lower boost (dreaming I know)

HtH

[Skyline95]

Cheers guys,

il post a dyno sheet when its done

Hey J

I have almost the same setup - but I have used the std RB26 bottom end.

I do have dump pipes – HKS style, with the short twin pipes from the turbo down to the engine pipe (+25awkw just from them I think)

I do have a 3.5” exhaust front to back

I also have the PFC and the Apexi EBC plus the R34 N1s, forged bottom end with std rods (linished and shot peened for good measure) with some minor head work too (competition valve seats are the main upgrade)

BUT I have not got 600cc injectors, I still have the std 440cc, and I still run with the std AFMs

Now for the good news - I currently get just over 300rwkw and about 292awkw running 18psi (easy)

I plan to change the AFMs and injectors within 6 months and expect to get to 350awkw comfortably.

My next upgrade ?may? Also include a bigger FMIC – and I hope to get the same power levels at lower boost (dreaming I know)

HtH

<{POST_SNAPBACK}>

[dangerous_daveo]

To give you an idea my mechanic did one of these with the N1 twins a few years back, and they couldnt find a dyno back then that could hold the car down to tune it out to redline.

They were using R32 N1s as well. It made 350rwhp at 4000rpm then just spun up on the dyno no matter what they did. And my mechanic said he would NEVER EVER put his foot flat in that car, it was too scary, yet he's fine driving 500+hp RVRs. That said, the engine did have a fair bit more work than yours.

Id say you will easy make that power and it will come on like nothing else. Will be one fun as car!

[itbmils]

To give you an idea my mechanic did one of these with the N1 twins a few years back, and they couldnt find a dyno back then that could hold the car down to tune it out to redline.

They were using R32 N1s as well.  It made 350rwhp at 4000rpm then just spun up on the dyno no matter what they did.  And my mechanic said he would NEVER EVER put his foot flat in that car, it was too scary, yet he's fine driving 500+hp RVRs.  That said, the engine did have a fair bit more work than yours.

Id say you will easy make that power and it will come on like nothing else.  Will be one fun as car!

<{POST_SNAPBACK}>

Hmmm

one mans scary is another mans thrilling

[fatz]

3 litre sell the n1's and grab som gtrs they would be sweet on a 3 litre

pete

[sewid]

I agree with Fatz, go the HKS GT-RS turbos instead of the N1s.

[manage13]

I agree with Fatz, go the HKS GT-RS turbos instead of the N1s.

<{POST_SNAPBACK}>

Agreed! GT-RS set up on a 3Ltr is pretty good.

[pnblight]

Not that i disagree the gtrs arn't a good turbo, it's just i have not seen any of them product much better top end at all over (GT2560R/HKS 2530) for the reduced low down responce and spool up. It might just be no body has found the right setup or posted a thread on it. I think markgtr34 made around 570rwhp is the best i have heard about, but i know of plenty mid 500rwhp twin 2530/gt2560r/t517z etc so my point is ,is 20rwhp worth loosing bottom end and responce.

pete

[Blitz]

Good point Pete, I too look forward to seeing a properly setup GTR running the GT-RS turbos producing some big horsepower.

[williamsf1]

marko's will make super powah!

[discopotato03]

2535's would be a little less laggy than GT-RS's , their compressors measure 69mm where RS's are 71.1 so a little less innertia all else being equal .

Cheers A .