FM Stroker + GT3071 = 400hp!
#1
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FM Stroker + GT3071 = 400hp!
This guy is a local track rat. Was at 3 of our local autox's taking FTD in his "slow" 323 GTX. Actually saved my *** at one of them when my downpipe slipped apart. Now it looks like his miata is back together:
LS2 vs. GT3071R - MX-5 Miata Forum
Not sure if he changed anything, this is the last version of his DIY setup:
I want. But you have to wonder, with the comparo of his dyno vs the LS2, does he have any regrets?
Edit: Mods, meant this to go into BS section...oops. Can leave here if you want, though since it is a DIY kit =P
LS2 vs. GT3071R - MX-5 Miata Forum
Not sure if he changed anything, this is the last version of his DIY setup:
I want. But you have to wonder, with the comparo of his dyno vs the LS2, does he have any regrets?
Edit: Mods, meant this to go into BS section...oops. Can leave here if you want, though since it is a DIY kit =P
Last edited by wayne_curr; 08-05-2009 at 01:31 PM.
#8
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Interesting. I love seeing good comparisons like this, same dyno. Even though the 2.0 makes "no" torque, how hard is it to actually use all that torque with the V8? Then again, the lag of the 4cyl may be more difficult to control.
As a semi related side note, I still haven't decided what would be better suited to the miata, a sequential TT to get some of that low end torque back, or a V8 swap. Maybe I'll just sell the miata and buy a boat. haha.
As a semi related side note, I still haven't decided what would be better suited to the miata, a sequential TT to get some of that low end torque back, or a V8 swap. Maybe I'll just sell the miata and buy a boat. haha.
#9
The only reason I have a 2.0L is because I bought it for $2500. I couldn't really justify spending that much on a 4 cylinder when I could have a reliable stock V8 for just as much and an insignificant weight increase (after all turbo stuff concidered).
A buddy of mine wants to do an LS swap car with me for another project. I would really like to drive both to see how vast the difference is.
A buddy of mine wants to do an LS swap car with me for another project. I would really like to drive both to see how vast the difference is.
#12
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Now I'm ******* impressed. He could turn that turbo up to the low-mid 20s and make 450+whp.
200tq at 3200rpm
250tq at 3700rpm
300tq at 4200rpm
That looks like it's an EASY 400whp to drive. No big hit, the turbo just comes on nice, smooth, and HARD.
200tq at 3200rpm
250tq at 3700rpm
300tq at 4200rpm
That looks like it's an EASY 400whp to drive. No big hit, the turbo just comes on nice, smooth, and HARD.
Last edited by Savington; 08-05-2009 at 09:44 PM.
#13
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A local Miata buddy of mine were talking just last week about whether the V8 or the turbo was the way to go. I think if I built a V8, it would be for the track, and be stripped to the bone, and ugly (primer paint, bent metal extractor hood, etc.). If I built one for the street as a daily driver, I would have to make it obnoxiously fast, like a turboed LSx, that I could use for bragging rights and to scare the crap out of my coworkers during rides to lunch
I am insane, and have a stupidly high tolerance for acceleration. It is genetic; I got it from my dad.
#14
Hmmm. I literally just bought tickets for a trip back to my hometown where Bob Bundy lives. Might have to meet up.
I would rather have less peak power and a torque curve that splits the difference between the LSx and Bob's car below 4000. I'd aim for something like the lower curve in the graph in post #5 on the M.net thread.
Here's my take on builds at that level: This much power in a Miata is kinda silly. A C5 Z06 is basically a bigger Miata. Chassis that is greater than the sum of the parts, an engine just good enough to let the chassis do its thing, and plenty of warts and flaws throughout. If you want to actually put down 400 hp without spending the rest of your life spinning wrenches, buy one and put 285s on the front, 315s on the back, and go drive. If I could afford tires that big, it's what I'd do, but a set of tires for my '99 costs less than one tire for the Vette.
I would rather have less peak power and a torque curve that splits the difference between the LSx and Bob's car below 4000. I'd aim for something like the lower curve in the graph in post #5 on the M.net thread.
Here's my take on builds at that level: This much power in a Miata is kinda silly. A C5 Z06 is basically a bigger Miata. Chassis that is greater than the sum of the parts, an engine just good enough to let the chassis do its thing, and plenty of warts and flaws throughout. If you want to actually put down 400 hp without spending the rest of your life spinning wrenches, buy one and put 285s on the front, 315s on the back, and go drive. If I could afford tires that big, it's what I'd do, but a set of tires for my '99 costs less than one tire for the Vette.
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