Ben's R32 Gtst Build

[XRATED]

this post says its a standard bottom end, pistons in the previous pictures of the bottom end look fairly standard and arent dome tops as i would expect in a high comp bottom end build.

no signs of a VCT mod that i can see (your "b-cam" was discussed before)

pictures of the head look to me like it has had a reasonable whack of meat taken off the bottom of it. if the car is running corn juice or race fuel only im thinking even higher than 10:1 11-12?

if thats not it at the moment im not sure what else it could be to give that big of a change

It used to be a 26 head... ??

[TiTAN]

putting a 26 head on a 20 is silly, the bores are the wrong size.

[sav man]

First and last hot lap for the new engine, seems i have a high flow #2 piston

It was a rubbish lap too, I left the buggered tyres from Targa on the rear, as it always used to push. But it appears i've fixed the front end grip.

[zebra]

All the cool kids have 5 high comp cylinders and 1 low comp one

*grubles....damn Supra

[Roy]

Fark me if your GPS speed is correct it monsters my car for straight line speed! Looks to be hammering! Sorry to read about more engine woes

[Marlin]

Geebuz Benny that's rotten news buddy! WTF happened?

And yeah, if that speed is reading true, you've got an outright contendeer there! The gearing is way different to mine too. I'm going to assume there's a technical setup glitch there somewhere?

[sav man]

Top speed was a big surprise. It's done via GPS, and is was getting data off 10 sats at the time. I'm pretty comfident it's accurate, the rpm vs gear calculates pretty close, and the lap time would indicate a good top speed since i stuffed the first corner so bad.

i'll have the engine out and head off tonight, but it looks like it might have been a clogged injector, as we test spreyed it at the track, and it didn't mist properly. #1 injector looked heaps better. I've been over the logs, and lambda was .71 at full noise, fuel pressure was 65psi, EGT was ~750 deg, and I couldn't hear it pinging (i've watched the video heaps of times to listen to it too). So i'm confused on what caused it.

What gearing do you have Ben? mine is a std RB20 box, and a std diff gearset (4.3 i think). unless a 4.11 got in there before I got it

[Marlin]

I have stock 20 box, and I assume stock gears (4:3?). Yours looks a lot like 32GTR gearing, so maybe 4:11.

There's no doubt your thing looks to have some serious stonk Shame about the pesky injector

1:1 4th gear at approx 7,800 rpm shift I get 190klm/h.

http://www.youtube.com/user/BennyTheWoo?feature=mhee#p/u/15/M9L49eCE7RU

[Marlin]

Upon comparing them again, the gearing does look close. It's the way yours pulls like a schoolboy in top gear that is the big difference!

[sav man]

pulls almost as hard as the owner

[Marlin]

I heard they called you Ken, as in the doll, because you pulled it so hard it came right off.

[Roy]

GPS so accurate hey? Fark me! I come on to the straight at PI at 170-80km/h and I hit 233km/h going downhill, on a very long straight with a short braking area as turn 1 is ~180k/h. Yet you hit the same speed on that lap! I need to pull my finger out and get the Cossie registered so the R32 can go corn juice and more boost

[sav man]

I think the low down torque is what makes it pull so well in 5th. All the other 20's i've driven strigle to pull 5th cause it's so high

[Roy]

I am depressed

[DJRIFT]

comparing data from targa to bens day at the track the extra torque is what helps it punch a whole thought the air. during targa with the not so grate engine it would just about go backwards in 5th. they seem to have a fair jump from 4th to 5th.

what ben has also not mentioned was the massive tail wind he had. haha

it wasnt a grate day for either of us. but my blown clutch is a lot easer than the engine swap, again!

[sav man]

The tail wind at symmons is worth some speed.

Got the engine open tonight. Looks like all the damage was caused by the tip of the spark plug that was missing. piston is full of dents the size of the missing piece, and the side is smashed out of the exhaust valve. Still need to work out why the tip came off

[zebra]

I cant see it knocking being that your on corn booze,

is it getting to hot in the chamber / EGT's?

[sav man]

apparently my tune wound another 5 deg into the engine as a test on the dyno, and it didn't ping with that.

EGT was only ~750deg after the turbo

[zebra]

any of the other plugs burnt or look melted?

may just be one of those unfortunate things

[sav man]

5 looked like it had been hot, but no deformation. The other 4 were fine