Ray Sir Six claims a local is racing a stock motor w/2560r at 280whp on 5-speeds - Miata Turbo Forum - Boost cars, acquire cats.

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Old 11-22-2010, 08:41 PM   #1
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Default Ray Sir Six claims a local is racing a stock motor w/2560r at 280whp on 5-speeds

http://www.dfwmiata.com/showthread.p...932#post225932
My thoughts:
Quote:
Originally Posted by mr brg View Post
I ran all weekend with **** like a 500whp STI, 700whp GTR, C6Z's on Hoosiers at both TWS and HHR and pulled the Vettes on the front-stretch at TWS due to exit speed and the GTR beat me up in the corners at HHR thanks to the 335 Hoosiers; he did not pull me through the kinks or on the corners where I could carry momentum and he's an HHR member...and I made 250-ish whp on ATS' dynojet. I'd like to know how the hell he's making 280+whp on a stock motor, not blowing it up, and doing it on a 2560 with a log manifold without water injection, and I know he's not running more than 25* of spark angle especially on the stock coil with 9:1 compression.
http://www.altaperformance.com/share...1_1_comp_e.jpg
The compressor map doesn't post far enough "right" to support that kid of flow on that turbo and he's not running 17psi through it. If he were somehow making that kind of power he'd bend the rods. Put a 2871 on it and run 16psi through it with 15* of spark and it might happen, but that motor won't take it and his turbo is tiny.
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Old 11-22-2010, 09:15 PM   #2
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in for circle jerk
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Old 11-22-2010, 10:11 PM   #3
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Can you please explain to him that I did blow my transmission this season at an autox with 215 rwhp 225 tq durring a high rpm 1st to second shift.

5 spd + over 200 rwhp = limited abuse or fail

There are plenty of guys here who have had 5spds fail...and yet he says they are good for 300 hp? lol. I have my gear tooth to prove it.
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Old 11-22-2010, 11:52 PM   #4
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My '93 is still on its original 5 spd, but my car doesn't see nearly the abuse a track car sees. Been turbo since 2006, mostly street driving and some autocrosses. No slicks since the turbo, either.
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Old 11-22-2010, 11:59 PM   #5
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I went back from 6speed to 5 speed then threw on a bigger turbo setup cause 5 speeds can hold 500whp easy
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Old 11-23-2010, 12:04 AM   #6
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Quote:
Originally Posted by 240_to_miata View Post
There are plenty of guys here who have had 5spds fail...and yet he says they are good for 300 hp? lol. I have my gear tooth to prove it.
****, one of my spec miata friends goes through 2 or 3 5speeds a season on his race car. These are all freshly rebuilt transmissions to. His third gear synchros always seems to be what goes.
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Old 11-23-2010, 02:02 PM   #7
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I had ~230whp and did over 1000 track miles with a five speed and didn't have any issues. Trans had 150k on it before I started doing track days...
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Old 11-23-2010, 02:08 PM   #8
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We've got a guy on this very forum running 400+ with a 5 speed.
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Old 11-23-2010, 02:12 PM   #9
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Quote:
Originally Posted by JayL View Post
We've got a guy on this very forum running 400+ with a 5 speed.
Yeah, but that little gaysian is full of ****.

Look at this ************'s low-cut v-neck and tell me he's credible:

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Old 11-23-2010, 02:55 PM   #10
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LOL at v-neck guy letting dude's "breed him".
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Old 11-23-2010, 03:22 PM   #11
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I've never made more than 250rwhp, did two HDPEs on mine and tons of autoxes before mine mine finally went...but I drove on it 2 years still after that whining at me the entire time. sounded like i had straight cut gears.


oh by 250rwhp i mean 320...
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Old 11-23-2010, 05:43 PM   #12
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280rwhp on what dyno? We know that turbo will do over 300 on a dynojet with the right intake and exhaust and cylinder head. My old manifold setup (Version 1 BEGI FM replacement) did 270rwhp dynojet @13psi 2560 with my otherwise stock '94 engine and 1.6 trans. Apples to oranges but I have been throwing boost thru a 1.6 trans since '01. I credit it to running 205/45/16's. Tires spin before trans explode.
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Old 11-23-2010, 06:51 PM   #13
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https://www.miataturbo.net/diy-turbo-discussion-14/rx7-fd3s-transmission-mx5-16195/

Well

The miata transmission is very nice, but can't handle safely more than 250 WHP.

At stock situations or at light turbo setups you 'll not deal with problems, but with 300+ WHP the 2th or 3th gear sometimes will gone

So there are two solutions
1)exotic stuff gears (os giken, quaife etc) but very expensive
2)adaptate transmission from another car, more inexpensive from the first solution but very difficult to do a perfect job.
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Old 11-23-2010, 07:14 PM   #14
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Quote:
Originally Posted by BIGTURBO
https://www.miataturbo.net/showthread.php?t=16195

Well

The miata transmission is very nice, but can't handle safely more than 250 WHP.

At stock situations or at light turbo setups you 'll not deal with problems, but with 300+ WHP the 2th or 3th gear sometimes will gone

So there are two solutions
1)exotic stuff gears (os giken, quaife etc) but very expensive
2)adaptate transmission from another car, more inexpensive from the first solution but very difficult to do a perfect job.
3) 6 speed
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Old 11-23-2010, 07:15 PM   #15
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4) 7 speed
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Old 11-24-2010, 08:54 AM   #16
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5) slushbox
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Old 11-24-2010, 09:03 AM   #17
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6) v-neck guy's stock transmission
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Old 11-24-2010, 10:57 AM   #18
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