what gear/rpm at the end of the qtr?

[walesy]

hey guys im after someone with LS1/4L60E/3.9's that can tell me what gear and rpm you are at the end of the qtr? are you still holding 3rd or going into 4th?

[SUSVS]

In my ls1 at the end of the qtr I was in third when my car was auto sittin at the speed of 150ish n I think the rpm was around 4000,

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[walesy]

1500rpm? was that with 3.9s?

[jakstas]

It's all relative to the power your making, and your 60", tyre size, mph etc. I get close to the top of 3rd gear in mine at about 130mph in 3rd gear, on 26" slicks.

You don't want to shift to 4th, as it's an over drive.

[walesy]

You don't want to shift to 4th, as it's an over drive.

yeah thats what im worried about, guess im just going to have to get some more et streets once the work is done and take it to WSID to find out, should get the car back in a week, but being so close to summernats i dont really wanna splurge on slicks at the moment

[jakstas]

What kind of power you expecting from the work your getting done? I'm pushing a touch over 400rwkw and still not requiring 4th. Must be expecting some serious mumbo if your worried!

Cheapest/easiest solution if you do find you are running out of legs is stepping up to a 27/28" tyre

[walesy]

power is staying the same, but im going from no stall and 3.45's to a dominator 3500 and 3.9's, i havnt taken it down the strip in almost 2 years so i cant remember what rpm in 3rd i was getting before, by the sounds of it ill be fine but

[VR38]

You want to be crossing the finish line redlining in top gear (1 to 1, not OD) to use maximum engine output.