You're right on the approx. cost. I guess the pound isn't as strong as it used to be. Would the T-56 actually fit an S30 without (major) sheetmetal mods? It's been pointed out that a mostly stock L28 probably wouldn't have the torque for 6th gear, but perhaps with a turbo'd stroker it might be go. I've been trying to decide on whether to sell my spare L28 or to look for a diesel crank and build a much stronger engine than my warmed over original engine.

If I'm not careful I'll just end up looking for another chassis, build the stroker, buy the 6 speed, do two restorations concurrently, then have to sell both cars to pay for the divorce.

I doubt that a T-56 would fit an L-motor without major mods. I've had the trans out of my GTO and, as I recall, it wouln't even be close. Starter location, size of belhousing, etc.

It fits the S30 with some persuasion from a BFH. The big problem is that it really doesn't give you ANY performance benefit, because the 6th is not moving 1-5 closer together. It's slightly closer ratio that a 280ZX 5 speed, but not a huge difference. I would expect that the extra 75 lbs (yep, it weighs 150 lbs) plus having to screw with a starter and crossmember and driveshaft to fit it would not be worth the hassle. It's your money, but I wouldn't do it. The reason the 510 guy did is because he was spraying nitrous on his turbo'd drag racer and blowing up the T5 trans.

Here is the one I was thinking of:

One for sale here: (Eastern Canada) Click

[TABLE]

<tbody>[TR]

[TD]Transmission[/TD]

[TD]1st[/TD]

[TD]2nd[/TD]

[TD]3rd[/TD]

[TD]4th[/TD]

[TD]5th[/TD]

[TD]6th[/TD]

[TD]Final[/TD]

[/TR]

[TR]

[TD]NISMO Reinforced Cross[/TD]

[TD]2.9071[/TD]

[TD]1.9888[/TD]

[TD]1.5373[/TD]

[TD]1.2179[/TD]

[TD]1.0000[/TD]

[TD]0.8624[/TD]

[TD]-[/TD]

[/TR]

[TR]

[TD]Genuine 6-speed (FS6R92A)[/TD]

[TD]3.6264[/TD]

[TD]2.2000[/TD]

[TD]1.5412[/TD]

[TD]1.2132[/TD]

[TD]1.0000[/TD]

[TD]0.7674[/TD]

[TD]3.6920[/TD]

[/TR]

[TR]

[TD]Genuine 5-speed (FS5W71C )[/TD]

[TD]3.3214[/TD]

[TD]1.9023[/TD]

[TD]1.3084[/TD]

[TD]1.0000[/TD]

[TD]0.8378[/TD]

[TD]-[/TD]

[TD]4.0830[/TD]

[/TR]

</tbody>[/TABLE]

Edited October 13, 201113 yr by Blue

I called the T56 a Borg Warner in my post above (out of habit) but its actually a Tremec. That Silvia trans looks like to be a Borg Warner, however.

That NISMO one has good ratios. It wouldn't be worthwhile to me to adapt it in, but different strokes and all that.

$7,500 for my sequential 5 speed and that included straight cut gears, the dog ring option, custom ratios, the gear indicator display I ran where the speedo was, an "A" box bellhousing, and the custom machined adapter plate.