TwinTurbo.NET: Nissan 300ZX forum - Drag strip results last night
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Subject Drag strip results last night
     
Posted by kuah@splparts.com on May 12, 2005 at 12:24 PM
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Message It has been a while since I had been to the drag strip and I finally decided to turn up the boost to 20-21PSI and see what the car can do. I never really tuned it since I rebuilt the engine late last year after finding low compression in cyl 6 due to slightly leaky valve/seat.

I had tuned the car just before Hallett on 93 octane @ 14.5PSI, but I decided I needed race gas for 20-21PSI. I tuned the car on 105 octane gas last Saturday on the street with Rodel's help (he drove I tuned). At the track I was running 110 octane because that was what they had.

On my 2nd run I got a 11.7 @ 120 with a 1.8 60ft:

I thought that was not too shabby, with a better launch the car *may* be able to get down to a 11.5, which was about what I was hoping for given my turbos/setup. So I got Sean (tt.net member "sfarrah") to drive my car, he is the better driver and I was hoping he'll get a 1.6 60ft, but this was what he got on his 2nd run:

!!! 1.46 60ft !!! I must suck real bad at drag racing :) This must be some sort of record for a Z32 M/T no-NOS ET Street setup...

That was all the more impressive because this was how the car was setup:

MT ET Street (yup not slicks) 26x10.5-16 on stock 16" rears and 13 psi tire pressure
-2deg rear camber (was setup for road race) and all stock rear suspension arms
SPL subframe collars, Nismo diff bushings, SPL urethane tranny mount, Noltec urethane motor mount
Tomei LSD

Not exactly an all out drag racing setup, the only thing I had really different was the LSD. I guess that finally paid off :)

A video of my 11.7 run:

[ www.splparts.com/Events/SAR0505/kuah.mpg ]

Sean's 11.3 run in my Z:

[ www.splparts.com/Events/SAR0505/sean.mpg ]

I am thinking I should bump the boost up to 24PSI, tune it on C16, get my "in the works" SPL reinforced and solid bushing rear subframe/multilink on, get the launch control option on my Motec and see how close to 10s we can get on these "smallish" turbos :)

Rodel was also out with us with his Sport 500 setup, he was trying to get the car into the 11s but was just a little short, he ran several 12.1 passes. He was running race gas but standard JWT timing, so a little timing advance should easily get him into the 11s. A video of one of his 12.1 runs:

[ www.splparts.com/Events/SAR0505/rodel.mpg ]

It was a pretty fun night out, I guess I'll have to do this a little more in the future :)

     
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