Like topic says , I searched but could not find what I was looking for , I have a gsr trans in my car now and was woundering if there would be any gain to put ina Ls trans , setp is Ls crank, Gsr head , Dart block , and full-race H.O. t3/t67 .82 Ptrim dual BB turbo , reving to around 9500rpm , tia

 

Shorter gears make you accelerate faster, so there would be no gain. Keep the GSR tranny or look into a B16 tranny. Check this gear calculator out if you want to see what different tranny's will give you...http://www.autocrossing.com/cgi-bin/gearcalc.cgi

 

If you're turning 9500 go with the B16/ITR trans. A 25" slick will put you at about 160 MPH at the top of fourth with the GSR, a B16 trans would be perfect and put you right at 150 MPH crossing the traps. For reference, the LS trans would put you at about 180 MPH at the top of fourth, so waaaay too long.

 

I see , but I dont make power until around 6500rpm , will that make a diffrence ???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">I see , but I dont make power until around 6500rpm , will that make a diffrence ???</TD></TR></TABLE>

Yes it will, the shorter gears will get you to your power band quicker and keep you in that range instead of possibly falling out of the power band w/ long gears between shifts. Gearing is a torque multiplier and torque is good

Phil

 

so I want to stay with the GSR trans then ???

 

If you're revving to 9500+ rpm than I'd look into the B16/ITR trans.

Phil

 

so then ITR would be the way to go ???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">Like topic says , I searched but could not find what I was looking for , I have a gsr trans in my car now and was woundering if there would be any gain to put ina Ls trans , setp is Ls crank, Gsr head , Dart block , and full-race H.O. t3/t67 .82 Ptrim dual BB turbo , reving to around 9500rpm , tia </TD></TR></TABLE>
Jeff Evans covered this quite well -
The End All Transmission Debate Thread

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">so then ITR would be the way to go ???</TD></TR></TABLE>

B16/ITR have the same gearing, so I would just go for the cheaper one, which is going to be the B16. Then get yourself a Quaife LSD.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beerbongskickass &raquo;</TD></TR><TR><TD CLASS="quote">

B16/ITR have the same gearing, so I would just go for the cheaper one, which is going to be the B16. Then get yourself a Quaife LSD.</TD></TR></TABLE>

Exactly. End of thread.

 

what about the transmissions with the factory lsd's in them , how much power or should a say trq are they good for , ?? the helical gear type , tia

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">what about the transmissions with the factory lsd's in them , how much power or should a say trq are they good for , ?? the helical gear type , tia </TD></TR></TABLE>

Not as much as you're making.

 

Quaife LSD &gt; OEM lsd

I knew I should have posted that lol...