[89StangGuy]

RB26DETT Ftw

[Sonic03SVT]

meh, RB is heavier than an LS, more complicated, and more expensive, both to get and to mod. Now, an aluminum block 302 based stroker with a g-force/astro performance T-5 is actually lighter than an LS/t56 combo, and would probably be my choice, but you cant exactly go wrong with either one.

[89StangGuy]

Originally Posted by Sonic03SVT

meh, RB is heavier than an LS, more complicated, and more expensive, both to get and to mod. Now, an aluminum block 302 based stroker with a g-force/astro performance T-5 is actually lighter than an LS/t56 combo, and would probably be my choice, but you cant exactly go wrong with either one.

Very true. I have no problems a 302 with a t-5. Especially when it'll spin high rpms, and put out a good amount of power N/A. You can even pull a good budget build and go with a good GT-40 setup from an explorer. With all the bolt-ons and supporting mods you'll have a good runner.

[Vettezuki]

Originally Posted by Sonic03SVT

LS is a bit heavier than the SR ( about 50 pounds, from what i could gather, once you factor in the weights of the turbo set up for the sr and their respective transmissions ) as far as the durability of the silvia rear end dont know, nobody keeps it :P all the swaps ive seen have ford 9 inch rears.

From what I've been able to gather a fully dressed SR20DET with trans is about 450 and full LS/T56 is about 550. So about 100pounds, not a huge a difference. But just eyeballing it, it looks like a fair bit of that weight with an LS will be hanging over the front axle unless you really cut up the firewall and push it back into the cab.

[Sonic03SVT]

most ls swaps i see have about a 3-4 inch rearward shift of the firewall to move the engine back. Not to make it fit, but to even out the weight.

[Slow_HO_Daytona]

Originally Posted by Vettezuki

We did think about the Rotary (turbo from an FD) since it can be packaged just about anywhere. The LS7 is likely too big and certainly too expensive. The RB25, like the 2JZ are fantastic, but probably too long as I6s. Mmmmm.

Of course sometimes, the obvious is obvious for a reason. Full SR20DETs with trans and harness go around $2,500 +- and they can make awesome reliable power, it's just that everyone does that for a 510.

I may know of a 1980-81 RX-7 with a Wankel... My Uncle bought it new and sold it to this guy a few years ago after having it in storage for 10+ years...
The current owner backed into something and hasn't driven it since... (Newport beach). He said something like $1,000.00....
Just throwing it out there for anybody

[Vettezuki]

Originally Posted by Sonic03SVT

most ls swaps i see have about a 3-4 inch rearward shift of the firewall to move the engine back. Not to make it fit, but to even out the weight.

Mmm, may have to seriously consider it, though honestly I'm not sure that much power is really necessary and perusing super lightness might be a better challenge. Maybe a modern HO V6 would be worth taking a peak at. Then again hearing an LS from a 510 would be pretty cool.

[enkeivette]

Vq37vhr

[Vettezuki]

Originally Posted by enkeivette

Vq37vhr

Not a big fan of the sound of a VQ motor, but it's a possibility too. They're expensive to mod beyond the stock form.

[enkeivette]

The 35 might be better for mods. Depends if he wants to be happy with 330hp, or if he wants to mod a 270hp motor to the 4-500 range.