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se-rious
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728 Posts
Discussion Starter #1
I just got s4's put in first of all and holy **** what a difference these babies make! Anyways, just wondering what you guys shift at in your cars and why?
s4's
jwt ecu tuned for 370cc's and bored out sr20de Maf
3 inch turbo back exhaust
gti-r manifold and t28 turbo
11psi

I shift at like 7200, but was wondering what other people shift at and why?
 

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se-rious
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728 Posts
Discussion Starter #3
yeah i know that hero haha. but ive heard different shift points from kids on here that go to the track, i think it was because of the turbo they were using(t25) stops making power at like 6500? i just wanted to make sure the t28 goes all the way to redline, which it feels like it does
 

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3,830 Posts
Yeah, but wouldn't you want to shift at redline just so when you shift you drop right back in the power band?
 

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se-rious
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728 Posts
Discussion Starter #6
no, t28 does not make power to redline. At least not in my car with s4,740cc,z32 maf.
are you sure? i thought i saw that it does
 

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SR powered S13 coupe
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6,728 Posts
are you sure? i thought i saw that it does
Show us then...

at the top of the turbo section you'll find stickied "show us your dyno sheet", search for 'T28 and cams' in that thread and you will see that the T28 does not keep going to redline.

ON the track, I typically shift around 7K when I was running with a t28 and S3 cams... in the upper gears, there just isn't much above that point.
 

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recently I started shifting first gear at 6700 rpm. works really well, 2nd gear still winds out just as fast. I rev to 7500 in all other higher gears. revving past 6700 with cams just results in wheelspin
that is probably a good idea just to avoid the wheel spin especially when your spraying or turboed.
 

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789 Posts
bb motor, gt2871r, calum ecu, sard 550cc, z32 etc i take it up to 8k
 

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i love b13's !
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8,012 Posts
7500 all day, s4's t28 7psi. i will be getting bigger injectors, 02 intake mani and brian crowr stage 3 cams and springs and retainers and i will most likely take the motor to 8k possible 8200.

shift at redline bro, better for the next gear etc etc.

stratton.
 

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se-rious
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Discussion Starter #12
^^^thank you
 

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agent camel toe
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9,396 Posts
stock bb--rb26 t28

with slicks i launch at 5500 and shift 1-2 at 7000,then 3rd and 4th at 8200

by july i will have a de blk/ve prepared head and a t4/t28
 
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