Redline S2K

From what I've researched not really. I think they both have the same, or pretty close to the same, internals. I do believe the case on the TR6060 is stronger from being thicker. But that makes it slightly larger and space is already tight. By the time you change the rear housing, flange, bearings, etc, your already over the price of just buying a magnum new.

Tehk

Good to hear the stock lump in a Miata is also a just as heavy as the pushrod v8. Miata would have been my goto choice had I not had this car. They are just so budget friendly for as awesome as they can be. Plus companies make a k member which makes the swap cake.

I put the corner scales on my car last week and I am 2450 with a 6 point cage without a bumper and only with an cf hardtop. Mind you I am gutted except for carpet, kirkeys, dash, and door panels. Frankly I am surprised a ls3 Miata is that heavy, but I'm assuming you have creature comforts which makes it awesome

Redline S2K

Tehk, what are you doing for headers? I was looking into maybe using stock c6 zo6 exhaust manifolds as they are essentially shorties in their design and can be had for cheap. Link for reference.

http://www.ls1gto.com/forums/showthread.php?t=45771

http://ls1tech.com/forums/parts-clas...pe-s-cats.html

grubinski

Not really. The swap adds 120# to the front axle, and 70# to the rear axle. The engine is heavier, but so is the trans, diff, rear axles, etc. The usual Miata swap runs around 2600# ... mine is lighter because I took out the A/C, radio, power steering, carpets, etc. I converted power windows and doors to manual.

My car was 2270# stock. My wheels and tires added some weight, too.

It sounds like we have similar thoughts about what makes a good sports car.

Tehk

What type of mounts are you using? With my motor mounts and not motor plates I can't use vette manifolds since they will hit. Temporarily I am using v-banded oem trailblazer SS manifolds. They dyno within 10hp of 1-7/8 long tubes, cast steel not iron, and cost $70 for both sides. They also fit like a glove.

This is the room we have to work with.
Attachment 162277

Once I get the car running for a event in August I will start the turbo install in September. The v-banded manifolds flipped forward make 1000+hp /8second proven turbo setups. They also fit awesomely and I was already able to fab the merge/crossover easily.

Here is my old s366 that got me 530whp, and the new s480 that makes it looks like a baby turbo...

Redline S2K

Same mounts you're using from alloy works. Looks like manifolds or headers that exhaust more to the rear are needed. I'll look into the trailblazer manifolds. I don't plan to turbo, staying NA

Tehk

here are the part numbers

12600526 MANIFOLD. Engine Exhaust Manifold - LH. Required: 01LHD.
12600527 MANIFOLD. Engine Exhaust Manifold - RH. Required: 01RHD

Plus two vbanded flanges. The stock flanges are huge as hell.

The vettes might miss but you'd have to lose ground clearance and run the cats under the subframe which is a deal breaker.

Also drill a hole for your fbody dipstick

CoolGuy094

You may already know this, but the Hooker LS cast manifolds do work with the Alloywerks mounts. The Trailblazer mani's sound like a good option!

Tehk

Yeah especially since I've seen the hookers and they are nothing special for 350$

CoolGuy094

Yeah, comparing images of the two side-by-side they look nearly identical. The trailblazers seem to have more slope in their collector, and of course the flange is different, but very close otherwise. The Hookers are freakin heavy, they look like they have a bit more material overall (not sure if that's a good or bad thing). I bought my Hookers for under $300, but if I had known about the trailblazers I'd have probably rolled the dice with those instead. We all have to do custom exhaust anyway, so hacking the flange off those and welding on a v-band isn't a big deal at all.