R34 Gtr N1 Turbos Specifications....

[Guest Mashrock]

Yep - I have the AA403s on my R32 (with the .48 housing)

definitely N1's (I asked Nissan b4 I bought them)

definitely have steel wheels

definitely have ball bearing (keep rolling for a full 60 secs after I turn the car off )

come on boost @ about 3.5K rpm (I see 11psi by that stage)

I have split HKS style dumps feeding into full (cat-less) 3" system, and I see ~300awkw @ 1.2bar without poncams

They still have PLENTY of potential to go, I've herd of some guys pushing these to 22psi – but that may be the .60 housings

I still have the std 440cc injectors – which is limiting my output

HtH

i run 1.4bar through mine. but it still feels like it needs about 2 i am going to try some c16 and see how far i can go

[J-Boy]

I'm running Mines stainless dump pipes, then spilt titanium front pipes that come into 3.5", then a japanese racing cat, and 3.5" stainless custom welded cat-back by a japanese performance garage straight all the way. I'm just doing 1bar fer daily driving. Any idea how much psi of boost the 34 GTR n1 turbos can take safely?

I've also got Tomei 260 poncams IN & EX with i think 9.15mm lift, Tomei camgears n etc, with denso 550cc injectors & Greddy fuel rail, sard fuel regulator, bosch 044 fuel pump running my fueling. Car was tuned before in japan, now i'm linking up with BD4s fer a possible tune up next time as yeah like u said, finding a good Fcon tuner in Brissy is almost impossible.

[Guest Mashrock]

i not too sure on your actual setup on how much you could run without leaning out on the fuel...

i guess leave that up to bd4's or whoever is going to tune it.

i beleive croydon and sas here in sydney can both tune the fcon also.. so there isnt just bd4's

the exhaust sounds nice haha. tho you were saying a bit quiter would be good. possibly ask someone around here for a high flow muffler and see what that can do..

[J-Boy]

Hmmmm ive checked my muffler and the packing inside is still quite solid...well i did get a silencer today and it helped a bit.

[GTRgeoff]

I understand R34 N1's have Inconel exhaust wheels, not steel. Lighter and not as fragile as the standard ceramic. The stuff is used in jet turbines.

[2443]

Cam timing between R34GTR (included Vspec, II and M spec) and N1 are diffrent. If you fit N1 turbo, you try to change the camshaft or changing the cam timing. It is help you the responce and power.

[Beer Baron]

i not too sure on your actual setup on how much you could run without leaning out on the fuel...

i guess leave that up to bd4's or whoever is going to tune it.

i beleive croydon and sas here in sydney can both tune the fcon also.. so there isnt just bd4's

a bit off topic, but what ecu are you running andrew?

[Guest Mashrock]

fcon pro v

[J-Boy]

Who tuned yer fcon vpro? So are u running a map sensor too like mine or still on AFMs? By the way is yer stock ecu still in the car now or the fcon is running standalone?

If u r running N1 gtr34 turbos as well, how much power are u making at wotever psi? Just hoping fer a comparison...cheers!

[Guest Mashrock]

well its still tuned from japan. its running a fair bit rich as they all do. i dont know who i am going to take it to for a tune. was working out if i could actually get my hands on the software for tuning it.

and i am yet to go on the dyno. and yet to work out if i actually have 34 n1's

but similar setups to mine have seen upwards and further on 350kw at all 4's.

i am not too sure what boost it has been tuned on, or the condition of my bottom end, and if i have aftermarket rods or rod bolts.. so i am just running max of 1.4 bar now.

its getting a new gearbox thrown in, and what a drama that has been.

discontinued item from nismo. and hard time getting a clutch to match the spline so its taking a while before i get it back

Andrew

[itbmils]

well its still tuned from japan. its running a fair bit rich as they all do. i dont know who i am going to take it to for a tune. was working out if i could actually get my hands on the software for tuning it.

have you considered a swap to a PFC ?

i am not too sure what boost it has been tuned on, or the condition of my bottom end, and if i have aftermarket rods or rod bolts.. so i am just running max of 1.4 bar now.

what's you air temp look like - 1.4 bar (21psi) is on the limit for these turbos AFAIK

[J-Boy]

Well im getting about 300kw @ 4 wheels with 1.2 bar of boost on mine, it was tuned in japan as well and my AFR is abt 11.5-11.8, which is in BD4s's view, ideal as the japanese always run richer, however i think it was tuned on higher octane petrol.

[Guest Mashrock]

have you considered a swap to a PFC ?

what's you air temp look like - 1.4 bar (21psi) is on the limit for these turbos AFAIK

autronic yes..

power fc..

no

and i am wishing for 2 bar.. but unknown till i check out the rods and pistons

[Guest Mashrock]

Well im getting about 300kw @ 4 wheels with 1.2 bar of boost on mine, it was tuned in japan as well and my AFR is abt 11.5-11.8, which is in BD4s's view, ideal as the japanese always run richer, however i think it was tuned on higher octane petrol.

i will forward what sydney kid has said to me about my motor turbos etc..

[J-Boy]

Cool thanx andrew....well if i had the spare cash i would run autronic too!