Rawr Whats Wrong Here!

[33GTRV]

Have been slowoly putting together a 10k GT-R mod package and have come to the tuning side of things. 10k got me a PAR gearbox, -5's, 550cc squirters, vipec, nismo pump, K&N panel filter, adj cam gears and half a tune at the local shop. ( the half a tune will be explained shortly)

i have attached a dyno graph of what this setup made and im not entirely happy with the results. I was informed by the tuner that he was not impressed by the car and that power was very umm, linear. I questioned why this would be and 4 days and 2k later, i have no answers and a bloody big headache. Now bieng in a semi regional part of the state of QLD means im basically 600km from anywhere so taking it south was always going to be a second option. Lesson learnt!

If any of the Guru's out there would like to shed some intrawebs mechanical knowledge on this and throw some ideas my way, ill happily take it on board and try it out as im a little angry and disheartned. AND, before i get grilled about going -5's, i went that option for future mod plans. The car drives average and seems to make about 4hp more than stock, even in the top end, has no coldstart properties whatsoever and seems to be running as rich as an arab oil baron at the moment so fire away!

[33GTRV]

Actually, scrap that, i cant for the life of me get this file to upload! anyone care to upload it for me? pm me an email adress and ill shoot it straight to u

[TiTAN]

make sure the image is under 2mb and give it time for the file to upload.

you also dont mention any kind of ECU upgrade.

[tridentt150v]

vipec????

What power did you make? total?

[Samon]

Actually, scrap that, i cant for the life of me get this file to upload! anyone care to upload it for me? pm me an email adress and ill shoot it straight to u

Just click the [browse] button. select the file, then click [upload] and wait for it to do it's thing...

[33GTRV]

i tried to downsize it and upload it, still no good lol. im not entirely computer savvy >.< The car made 361whp. made 337whp before mods on 14psi with a front pipe and 3.5" exhaust

[TiTAN]

but do you have an after market computer in the car? if you dont there is your problem.

[wlspn]

Mate it mentions in the 1st post ( & trident has pointed out) that he is using a Vipec.

[TiTAN]

oh, i read through it 3 times and missed it

if the local tuner isnt that familiar with turbo jap cars look at taking the car to someone that has dealt with them and the vipec/link computers before.

[zebra]

Well if its only half tuned....than thats the problem!

get the tune finished off asap

[tridentt150v]

I'd swap tuners, or swap cars. Owning a car like a GTR in a country town has its problems [i'm in the same jam]. You have to decide if you want to drive 2-300km and get a 'real' tune, or if you would rather live with an aussie V8???

I think that your mods should give good power and maybe more than what you already have, 280kw is OK, but a GTR with those mods should be over 300. So your tuner is the weak link in the chain.

As they say, only a poor workman blames his tools..............

What exhaust do you have? If it is a standard one then maybe that could be affecting final power?