Just got LS1
Just got LS1 Got a LS1 car..2001 pullout .. its in a RX7. Very impressed with the motor, because its at least as fast as my other one SBC 355 with heads and cam. What do those rev up to stock? I belive it hits the limiter near 6200. I'm dealing with 4.10 gears, need some more rpms. What rpm is a safe shiftpoint with a stock ls1? It's got full exhaust, but that is it. Bottom end pretty stout to go a little over 6500?
Originally Posted by kukri
Got a LS1 car..2001 pullout .. its in a RX7. Very impressed with the motor, because its at least as fast as my other one SBC 355 with heads and cam. What do those rev up to stock? I belive it hits the limiter near 6200. I'm dealing with 4.10 gears, need some more rpms. What rpm is a safe shiftpoint with a stock ls1? It's got full exhaust, but that is it. Bottom end pretty stout to go a little over 6500?
Ill give you the non-caps lock version. The weak point when it comes to reving is your pushrods. those are an easy fix, then get some nice springs and your probably strait to set the rev limiter to 6500.
and the post above me is refering to when a 6-speed LS1 car missed 4th gear on the highway and accidently drops it into 2nd, the road will be moving faster than the car can handle and actually push the engine PAST the rev limiter by enough to bend some of the pushrods.
and get rid of those 4.10's those are completely not necessary for such a light car. get 3.23's. or 3.73's i personally have 3.23's and love them on a much heavier car, the engine has a lot of wind up top.
and the post above me is refering to when a 6-speed LS1 car missed 4th gear on the highway and accidently drops it into 2nd, the road will be moving faster than the car can handle and actually push the engine PAST the rev limiter by enough to bend some of the pushrods.
and get rid of those 4.10's those are completely not necessary for such a light car. get 3.23's. or 3.73's i personally have 3.23's and love them on a much heavier car, the engine has a lot of wind up top.
Originally Posted by camaroextra
Ill give you the non-caps lock version. The weak point when it comes to reving is your pushrods. those are an easy fix, then get some nice springs and your probably strait to set the rev limiter to 6500.
and the post above me is refering to when a 6-speed LS1 car missed 4th gear on the highway and accidently drops it into 2nd, the road will be moving faster than the car can handle and actually push the engine PAST the rev limiter by enough to bend some of the pushrods.
and get rid of those 4.10's those are completely not necessary for such a light car. get 3.23's. or 3.73's i personally have 3.23's and love them on a much heavier car, the engine has a lot of wind up top.
and the post above me is refering to when a 6-speed LS1 car missed 4th gear on the highway and accidently drops it into 2nd, the road will be moving faster than the car can handle and actually push the engine PAST the rev limiter by enough to bend some of the pushrods.
and get rid of those 4.10's those are completely not necessary for such a light car. get 3.23's. or 3.73's i personally have 3.23's and love them on a much heavier car, the engine has a lot of wind up top.
If he has the stock rear there will be no 3.73's or 3.23's. You will have to go 3.90, which is what all LS1 RX-7 guys go far. They work much better than the stock 4.10's. You have to get them out of the auto RX-7's.
Originally Posted by LSINA7
If he has the stock rear there will be no 3.73's or 3.23's. You will have to go 3.90, which is what all LS1 RX-7 guys go far. They work much better than the stock 4.10's. You have to get them out of the auto RX-7's.
Actually I do have the stock rear end now, but I already bought Cobra IRS Diff. for $75 with 3.73s in them 
Going to go that route instead of raising the limiter.
Thanks for replyes but still unanswered question of stock limiter setting ..about 6200?? Reason I'm asking is tach might be off, cuz I found out with help of Texas State Troopers that my speedo was.
Going to go that route instead of raising the limiter. Thanks for replyes but still unanswered question of stock limiter setting ..about 6200?? Reason I'm asking is tach might be off, cuz I found out with help of Texas State Troopers that my speedo was.
Last edited by kukri; Feb 9, 2006 at 09:05 PM.
Originally Posted by kukri
Actually I do have the stock rear end now, but I already bought Cobra IRS Diff. for $75 with 3.73s in them Going to go that route instead of raising the limiter.
Thanks for replyes but still unanswered question of stock limiter setting ..about 6200?? Reason I'm asking is tach might be off, cuz I found out with help of Texas State Troopers that my speedo was.
Going to go that route instead of raising the limiter. Thanks for replyes but still unanswered question of stock limiter setting ..about 6200?? Reason I'm asking is tach might be off, cuz I found out with help of Texas State Troopers that my speedo was.
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Originally Posted by camaroextra
what tack do you have?
Rx7 Tach and it seems like it bounces around 6200-6300 rpm according to it, which I didnt mean to do...but 4.10s will do that to you
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Originally Posted by kukri
Rx7 Tach and it seems like it bounces around 6200-6300 rpm according to it, which I didnt mean to do...but 4.10s will do that to you
Originally Posted by camaroextra
i believe the stock pcm limits it to 6000 rpm.
If you are spinning it to 6200 it has been modified and you may have aftermarket springs, but to spin it much past 6000 its a good idea to have some aftermarket springs, and the first guy to respond was saying that if you spin it too high with the stock rod bolts (mostly a 98' model issue) then they may let go and throw a piston through the block. I'd advise some hardened rod bolts if you spin it much past 6500.
