Can I Do Better?

[JH32]

Hi guys

Took the car down to the Motorplex to see how she'd run. It's an R32 GTS4 with an RB26 transplant and a plain bearing GT35 running 18psi. The car makes 408rwhp @ 7,250rpm

I probably should have checked the graph before I left as we were changing gears anywhere between 8,000 and 8,500rpm. So anyway, the best run was:

Elapsed Time: 11.995s

Terminal Speed: 118.11mph (190.07kph)

60' : 1.953s

330': 5.165s

660': 7.804s

660'speed: 151.57kph

1000': 10.078s

I did have previous 60' times of 1.7 so I guess I should have been able to shave a bit off that run above. It was still wheelspinning and torque steering a lot though.

So yeah, basically what I'm wondering is can I expect any better out of the car or is that about it?

Cheers!

[chops]

The mph suggests there a little more left in her, particularly with the better launch as you mentioned. 118 mph is good for mid 11s.

[Abo Bob]

You've definitely got better 60 footers in you. Drop it back to 1.7 and you should see 11.5 now worries.

[benm]

Time for some BF Goodrich Drag Radials

[2rismo]

11.40's. It's the pedal on the right by the way

Adrian

[SimonR32]

times were run using shitty old kumho ecstas which were not even put on directionally the right way

plus launches were just limter and drop the clutch to protect the clutch

a bit more chance of actually driving the car would be nice before racing haha

[JH32]

Cheers for the replies guys - I think I'll have to go and get some new tyres before going down again

And yeah as Cerbera says - more practice needed

Good to know though that it could be capable of more though!

[Sydneykid]

I would have thought that with 408 rwhp (305 rwkw) it would have run with a TS around 125 mph. A TS of 118 mph seems to me to be indicating a power more like 270 rwkw than 305 rwkw.

Or am I being too optimistic?

cheers

[2rismo]

I would have thought that with 408 rwhp (305 rwkw) it would have run with a TS around 125 mph. A TS of 118 mph seems to me to be indicating a power more like 270 rwkw than 305 rwkw.

Nope, that sounds about right to me, SK. Not too optimistic at all.

My prediction of 11.40 is based on the type of car and the mph it has actually run rather than the claimed power figure.

Adrian

[PORTS]

Interested in the total weight of your GTS4.

Have you gone bananas on reduction or is it close to street trim?

[PORTS]

Hey Adrian, whats your PB 60' time, mph and gross weight?

[SimonR32]

car was raced full street trim with stereo and sub in boot

sydneykid, the mph is about right by my calcs, then again it might loose a little bit of time simply because it is soo laggy... average power may be down a little

[2rismo]

Hey Adrian, whats your PB 60' time, mph and gross weight?

11.685 - 1.697 - 118.98mph - 3240lb race weight.

Adrian

[JH32]

I brought the time slip and dyno chart to work today so that I can scan and post. Unfortunately I can only scan into a pdf format so by the time I've cut and paste etc it's in black and white. Once I get a bit of time later after the morning madness period I'll try and post them up.

Once you see the dyno chart then perhaps you could tell me if I am right or wrong in suggesting that the car could be quicker if changed at 7,000 - 7,250rpm rather than 8 or 8.2k like we were experimenting with

But yeah car was run in full street trim