Sr20det gear ratios too short?

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
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JdrifterCA
Posts: 466
Joined: Fri Jan 19, 2007 3:54 pm
Car: 1992 240sx LE

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I think sr20det's gear ratio is too short... going 70mph at 3,300ish...is there anything i can do to change that? s15 sr trans swap?

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Seishuku
Posts: 498
Joined: Fri May 13, 2005 6:19 pm
Car: 1987 Nissan S12, 5-speed, SR20DE+T 50trim T3@15PSI, Megasquirt 1 029y4

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Longer rear end ratio would be the easiest... Something like a 3.53? I donno.
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jdm_master_X
Posts: 3518
Joined: Sat Jul 23, 2005 6:22 pm
Car: 92 Nissan 180SX LHD!...LaWL
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a J30 or Q45 VLSD will make a difference. If you need a J30 diff let me know.
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Emperor_Tha
Posts: 834
Joined: Wed Nov 22, 2006 12:56 pm

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j30 with 215/45/17 = 70 mph at 2800-3000 rmp
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