Can I Get Some Opinions?

[iplen]

So I have had my R32 for almost 12 months, Someone I know know's a thing or 2 about GTRs (has a mighty quick 34 v-spec he built/tuned in between tuning various motorbikes) and I mentioned that my car is running about 20psi (1.4ish bar) as it arrived from Japan, he seemed pretty sure that the car would not have a stock bottom end. Looking through the "Engine Failure" thread it does seem that it could be a lot of boost for a stocker, all that we are 100% sure of is steel turbos (cause otherwise they would have blown up) 3.5" exhaust, and HKS hard piping kit (and boost controller).

I am not running this sort of boost everyday, but the car is very happy running it...

So, is it likely a stock bottom end will put up with this?

[89CAL]

think it really depends what sort of turbo it is, if its only a baby turbo its probably alright, bit more info on the turbo? might have a info plate on it somewhere.

[paulr33]

don't assume, best to check and be sure

does it have signs of a different ECU?

i mean it makes no sens to have a built motor, aftermarket turbochargers and a stock ECU (unless remapped rare)

i mean how much was it to buy? surely if someone was selling a car and it a had built motor the price would reflect it

do you have any reason to suspect its got aftermarket turbo's and a built motor - did the price reflect this?

check the ECU - look for remap stickers, wiring looms hacks or aftermarket replacement

[iplen]

ECU we assume to be stock (Has a speed limiter anyway), turbos are stock size (with standard non N1 markings), but are still making 20psi all the way. Background on the car is hard to find, an Aussie buyer in Japan picked it up to restore, then changed his mind, sent it to Aus, his aus buyer had it and an evo 6.5, but was intructed by his other half to reduce wheeled toys by one to maintain boobed toy. Apart from mods listed in first post power wise, it has a fuel pressure reg (but just a screw one), Apexi pods, and a turbo Y-pipe with "Progress" written on it and the fuel pump is a bit noisier than I expected... Price reflected the fact that the paint on the bonnet and front guard do not reflect S#!T... $22k with about 80k on it

[paulr33]

ok so basically it is stock standard then

and this other info is what they "tell" you

[iplen]

Well, Exhaust, hard piping kit, fuel pressure reg, pod filters, boost controller are all pretty easy to spot, we pulled everything down to the turbos off to check what they were, markings were as per standard in another topic on the forums. The steel turbines, basically with the boost controller on high it went to 1.4 bar, and stayed there, and has done it for 5 runs at the drags and a few other times, was not really how I intended to check if the turbines were steel or Ceramic... But it is fairly certain, also does not reach full boost until almost 4500, which seems a bit late for ceramic turbos. Computer wise, have not pulled the kick plate off, but if someone was going to play, surely they would remove the limiter.. Not really after a difinitve answer that the car has forged Wisecos, H-beam rods, a big crank and a Steel gasket, just whether I should stay well away from that much boost until we know more, or if it is LIKELY to be ok here and there...

[zebra]

what trap speed did you get at the drags?

[zebra]

damn double post.

[snozzle]

forged bottom ends are usually noisy on a cold start up as compared to stock bottom ends, that may give u a clue, if not, ive herd its possible to put a camera into ur combustion chamber

[PM-R33]

Pull your spark plugs out, shine a torch in and have a good look. Most of the time its pretty easy to tell factory cast Nissan pistons to aftermarket items (obviously if you know what factory cast pistons look like).

Edited March 7, 2010 by PM-R33

[iplen]

Trap speed was only 170+/-2k, Not noisy on startup, will have a look down the plug holes and see what I find. Seems likely it is stock, so kinda planning to avoid 20psi..