highest HP with 6 spd.
wondering how high the 6spd can be taken...
anyone out there with over 400hp with a 6 spd? how many miles on it, how's it holding? |
There's been much discussion on this. I think the power limits of the 6speed are largely unknown because I don't think anybody has actually broken one.
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out of all that discussion, i have yet to see/read about one 400hp + Miata with a 6 spd in it.
most all high hp Miatas i've read about use the 5 spd with the expensive Quaiffe guts. i've read about 300-350hp Miatas using the 6 spd successfully, but nothing north of 400hp. there's gotta be someone with a high hp Miata using one, i'd like to know if it will hold up to the abuse. |
people have destroyed 6 speeds, it's just uncommon.
400whp street driven with mechanical empahty should be fine. if you're drag racing, ********, or just abusing it, expect it to last longer than a 5spd would but not for forever. |
What tranny was 1badmx5 using? He was pushing 500hp.
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I'm about to put 300whp through mine on the street...250whp on the track.
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Wasn't that guy with the 8 sec Miata running a 6-spd and broke third. He was making like 580whp or something, drag only car. So, realisticly, 400hp should be cake for a 6-spd. 5-spd, ehhh, 350whp is pretty much the limit.
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Originally Posted by ray_sir_6
(Post 367144)
5-spd, ehhh, 350whp is pretty much the limit.
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I swear, the next time I see one of these "what can I make that you guys will buy" threads, I am going to argue RX7 transmission adapter plates until I am blue in the face.
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Originally Posted by mazda/nissan
(Post 367205)
I swear, the next time I see one of these "what can I make that you guys will buy" threads, I am going to argue RX7 transmission adapter plates until I am blue in the face.
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Originally Posted by Savington
(Post 367201)
Read more. 250whp is where you start breaking 5-speeds based on pure torque. Shift one hard at 200whp and you can break it, too.
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5 speed is a piece of shit at 250 whp
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Originally Posted by TURNS101
(Post 367216)
5 speed is a piece of shit at 250 whp
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no other cars I am on the track with blow trans like a miata.
This comes up all time simply because the trans are shit. When you'er turbo. So my sig doesnt matter.. |
Originally Posted by ray_sir_6
(Post 367215)
I have read into it. 350whp is the safe limit. I read and go on personal experience. We had the stock 5-spd on the 480whp 1.8l, never had an issue. Keith Verges' cars are making 275whp with a FMII kit, Hydra ECU, and all run stock 5-spds. NEVER, had a tranny fail. They make close to 250tq as well.
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Originally Posted by TURNS101
(Post 367220)
no other cars I am on the track with blow trans like a miata.
This comes up all time simply because the trans are shit. When you'er turbo. So my sig doesnt matter.. |
The 480whp Miata we had was a d-r-i-f-t car, and he blew the motor before he blew the stock 5-spd. It was a stock block, and lasted 2 events. That was when he parked the car, and then parted it out. The chassis is now sporting an LS engine.
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Originally Posted by Savington
(Post 367223)
You're a fucking imbecile. Jerry Hoffman had 2nd gear fail on a simple 2nd-gear acceleration pull during an autocross at 235tq. I decimated 3rd gear at 219whp. I have a friend who did the same thing at less than 200whp. If you never had an issue, you never drove the car. Just because YOUR shop has never had an issue doesn't make the tranny invincible at 350whp. Take your high-and-mighty tuning-shop attitude and stuff it up your ass.
You are right, I don't drive my car: YouTube - Miata @ MSR Cresson My friend driving it. 223whp/191tq. Tranny isn't broken. http://img.photobucket.com/albums/v6...avsDragCar.jpg Sorry, I'm driving it this time. Made about 25 passes, ran a best of 13.51@103. Most passes were 14.1 or better. No tranny noise, no grinding. Must be a freak tranny, goes with my freak power setup, since you can't make 184whp on the WG. How many other MT rumors do I need to shatter before people stop arguing and start listening? |
I will be 400+ and I'm going to be using a 6-speed. I don't anticipate having any issues with it.
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Originally Posted by ray_sir_6
(Post 367237)
How many other MT rumors do I need to shatter before people stop arguing and start listening?
The only rumors are the ones you spread. The 5-speed is not reliable at 350whp - period. |
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