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[reddevil]

So I am currently trapping 117.xx @ 6900 rpm at the finish line with the 205/55/16 tires.

Calculations say if I change to 205/50/15, I would hit 108.5 @ 6900rpm. Slightly larger tire 225/50/15 I would hit a about 112.xx @ 6900 rpm.

So.....

Technically I get out of the hole a bit quicker, but will the fact I need to shift to 5th be benificial?

I am making about 400/400 power....

[crttaz]

real question should be 23" or 24" slicks.

[d-rail]

real question should be 23" or 24.5" slicks.

[caged]

real question should be cv shafts??

[Atticus]

real question should be cv shafts??

preload

[98vtec]

spinning halfway down the track raises MPH

[caged]

real question should be cv shafts??

preload

Preload + semi slicks still= broken axles with this hp on early wrx or legacy gt Axles.

I would stay with the taller tyre so you dont loose tyre length (not width).  Shifting into 5th before the line would be a waste of time UNLESS you plan on more hp. You could just put some 4.4's in next time you do a gear or syncro. What are your 60fts?

[Urban Indian]

preload

Nobody cares what you think Eminem

[reddevil]

2.0 cause of bad tires and early season slick track.

This tranny has done 1.75 60' times in the gutted wagon.

[Atticus]

real question should be cv shafts??

preload

Preload + semi slicks still= broken axles with this hp on early wrx or legacy gt Axles.

I take it its not a 20 min job like a civic.

How strong is the tranny/diff ?

[caged]

I take it its not a 20 min job like a civic.

How strong is the tranny/diff ?

Na its all easy to pull out. We havnt had a diff problem yet but have stripped the teeth off 5 third gears, killed heaps of syncro's on track days and blown a few other gears. I found that using a twin plate clutch hurts 3rd gear more. We broke 1 front and 1 rear axle on 1 launch, also broke about 3 more axles that day on semi slicks. This is with between 380 and 480whp on a 97 STI sedan.

[reddevil]

Oooooh they hurt.

Mainly because I could not hook up.  My 60's were never better than 2.0....

I had ONE chance to break 12.5, but because I have never shifted into 5th at the dragstrip, I missed 5th and ran 12.6 @ 102.

The rest of the runs I was hitting redline right before the damn traps so shifting was a waste.   Redline = 112.35 using 205/55/15 tires for me.

I felt I had one Awesome run in me.....  wow what a hookup in third!   what pull! 

Then I shifted back into 1st....  The ONLY time I have ever done this.     To top it off, I was against a new camero, it would have been SO FLIPPING awesome to stomp it with my best run ever...  Instead I did a 16.6 @ 109....

So....  Back to the crappy 16"!

[caged]

Its got potential if it ran 12.6 @102 and a 16.6@109. keep working on that 60ft and get some low 12's