Shift points with Street ported engines?
09-04-02 | 01:56 AM
#1
Thread Starter
Senior Member
Joined: Jan 2002
Posts: 401
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From: canada
Shift points with Street ported engines?
Street ported user's...
What rpm's do you guys shift at for max. Hp and quickest ET and the Track?
Before my street ported engine...I use to shift around
7200 rpm.
thanks jc.
best time this year... 12.36 @ 112 mph
1.77 at the 60 ft.
What rpm's do you guys shift at for max. Hp and quickest ET and the Track?
Before my street ported engine...I use to shift around
7200 rpm.
thanks jc.
best time this year... 12.36 @ 112 mph
1.77 at the 60 ft.
09-04-02 | 02:13 AM
#2
1JZ powered
Joined: Jul 2001
Posts: 4,423
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From: Where there's only two seasons, hot and wet! I love Okinawa
Those are pretty good times.
Street port will allow you to shift higher...especially if you've got an aftermarket turbo.
Of course, I shift at 9000 rpms in 1st gear!
Then 7500 rpm's after that
Street port will allow you to shift higher...especially if you've got an aftermarket turbo.
Of course, I shift at 9000 rpms in 1st gear!
Then 7500 rpm's after that
09-04-02 | 02:59 AM
#3
Thread Starter
Senior Member
Joined: Jan 2002
Posts: 401
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From: canada
What!!! 9000 how? Our cars have a 8200 fuel cut rev-limit. Do you have some sort of re-programed ecu?
jc
My MPH should be a few mph higher... or it could be that we are at 2400 ft above sea level here...
jc
My MPH should be a few mph higher... or it could be that we are at 2400 ft above sea level here...
09-04-02 | 01:05 PM
#5
Lives on the Forum
Joined: Dec 2001
Posts: 14,716
Likes: 8
From: San Lorenzo, California
you should be able to look at your dyno plot (I assume you have one, if not, you should) and analyze it. By seeing when the power really starts to fall off, you can get a little more dialed in. My guess is you should probably be shifting around 7.5k-8k with a streetport for the 3-4 change. For my close to stock car, I shift at redline for 1-2 and 2-3 but shift at 7.5k for the 3-4.
09-04-02 | 01:06 PM
#6
Passenger
Posts: n/a
Originally posted by jspecracer7
Those are pretty good times.
Street port will allow you to shift higher...especially if you've got an aftermarket turbo.
Of course, I shift at 9000 rpms in 1st gear! Then 7500 rpm's after that
Those are pretty good times.
Street port will allow you to shift higher...especially if you've got an aftermarket turbo.
Of course, I shift at 9000 rpms in 1st gear!
Then 7500 rpm's after that
-Rikki
