What are the exact shifting points for an sr???

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SeVa-S13
Posts: 8478
Joined: Thu Jan 23, 2003 9:11 pm
Car: '05 GTO 6spd

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ill_sil wrote:My mechanic builds racecars/bikes that go sub 8's and 7's and he told me i should shift like this-1st 5200-2nd 5200
Brilliant! Shift right at peak power just to make sure you're below your power curve in your nest gear! Automotive genius is abound these days.And nothing less than 7k, eh? And here I was wondering how these guys kept breaking their rocker arms.


s13sr20chris
Posts: 4148
Joined: Tue Jun 10, 2003 9:32 am
Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
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SeVa-S13 wrote:And nothing less than 7k, eh? And here I was wondering how these guys kept breaking their rocker arms.
heh heh, its a rite of passage.

TunaFish
Posts: 40
Joined: Tue Feb 22, 2005 8:23 am

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I wouldn't go to that mechanic anymore honestly.
ill_sil wrote:My mechanic builds racecars/bikes that go sub 8's and 7's and he told me i should shift like this-1st 5200-2nd 5200-3rd 6500-4th 6500~7000

I guess the reason he says this is because HP and TRQ almost always cross at 5225ish

he also suggested that i try launching in second.
Torque and HP HAVE to cross at 5252, since HP is just a measurement of torque.

HP = Torque * rpm / 5252

There-for at 5252 torque and HP will always be the same.

And launching in second? yikes...


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