Ryan's turbo build
06-10-2013, 12:38 PM
#243
But I was talking about these:
RX7/S2000 spline hubs.
http://www.miataroadster.com/miataro.../i-581084.aspx
Mainly I hear our axles are incredibly weak.
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06-10-2013, 02:19 PM
#246
Taken from: Solomiata : Drivetrain : Interchange
differential shaft diameters and splines:
7" small axle = 25mm x 24 spline (808, RX-3, 79-83 RX-7)
7" large axle = 27mm x 26 spline
7" S2000 = 29mm x 28 spline
7.5" small axle = 27mm x 26 spline '84-03 B2000/B2200 & early 95-97 Sportage
7.5" large axle = 29mm x 28 spline ('98-05 Sportage)
8" = 31mm x 30 spline. TT/TII/929
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06-10-2013, 02:23 PM
#247
The only cars I've personally seen break axles have been cars on 275 hoosiers with bolt on+tune power, and we determined they were breaking them because they were too low. Raised the ride height up on one of them and it hasn't broken an axle yet after ~20 drag launches at this point.
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06-10-2013, 02:24 PM
#248
meh like Bryan was saying in his thread I'd rather keep stock axles and replace one every once in a blue moon then worry about exploding the 6sp or torsen or clutch.
Gotta keep the weakest link the least expensive.
Or just build EVERYTHING (which is not cheap to say the least)
Gotta keep the weakest link the least expensive.
Or just build EVERYTHING (which is not cheap to say the least)
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06-10-2013, 02:45 PM
#249
meh like Bryan was saying in his thread I'd rather keep stock axles and replace one every once in a blue moon then worry about exploding the 6sp or torsen or clutch.
Gotta keep the weakest link the least expensive.
Or just build EVERYTHING (which is not cheap to say the least)
Gotta keep the weakest link the least expensive.
Or just build EVERYTHING (which is not cheap to say the least)
Trannys, theres the TII with a bell housing adapter and PPF adapter. which I'm still not 100% I like the ratios or confident that its significantly stronger than the 6 speed. The T5Z with BEGI's new bell housing and shifter and PPF adapter thats about to come out, which sounds like the best option on paper if you can get the right rear end ratio behind it, or custom gear ratios, assuming the BEGI parts fit. Or the SFI bell housing adapter that gets you adapted to any circle track or drag tranny you could hope for that have near infinite gear ratio choices and can be had to support 800hp for under 3k with custom ratios, downside is 4 speed, 4th gear is 1:1, or using a TKO500 but it comes with the same problems as the T5Z.
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06-10-2013, 03:05 PM
#250
I dont even really think its the cost. The option for a stronger diff that goes in easy, the RX7TII with 929 front and fab'ed PPF mount, doesnt have good ratio options. The 7.5" or 8.8" dont really have very good LSD options, there's torsens, "clutch types", and lockers but no salsibury diffs, and take a bit more fabrication to put in, but are dirt *** cheap. Or the speedway quickchange diffs are expensive and require the same fab work as the ford diffs but have even more ratio options and good LSD selection.
Trannys, theres the TII with a bell housing adapter and PPF adapter. which I'm still not 100% I like the ratios or confident that its significantly stronger than the 6 speed. The T5Z with BEGI's new bell housing and shifter and PPF adapter thats about to come out, which sounds like the best option on paper if you can get the right rear end ratio behind it, or custom gear ratios, assuming the BEGI parts fit. Or the SFI bell housing adapter that gets you adapted to any circle track or drag tranny you could hope for that have near infinite gear ratio choices and can be had to support 800hp for under 3k with custom ratios, downside is 4 speed, 4th gear is 1:1, or using a TKO500 but it comes with the same problems as the T5Z.
Specs and discussion I found: http://www.ffcars.com/forums/66-2006...nsmission.html
So begi is making to where we can use this trans with stock rear? The 330 ft/lbs rating is nice scine its made for v8 torque it's made to handle it all at once not the inset of boost. I like having 6 speeds if it was anywhere near being good for a "cruising gear" but nope not with my rear diff.
I've been thinking about the rx7 rear to it seems to be strong anyone have numbers they can throw out of how much they can handle?
Sorry ryan I seemed to of jacked your thread for diffs :P
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06-10-2013, 07:01 PM
#252
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No worries, it's all good info to have.
Troy, they are 880 Racing Hoosier 26.5/8.0-15 "Roadster Edition." They are the tires we use on our race cars, so I have quite a few spares and old good used ones that work good for doing stuff like this
Troy, they are 880 Racing Hoosier 26.5/8.0-15 "Roadster Edition." They are the tires we use on our race cars, so I have quite a few spares and old good used ones that work good for doing stuff like this
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06-25-2013, 11:24 AM
#254
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No real updates, I have scheduled a dyno session for the 8th of July. I want to see what it is putting down currently before buying my new Borg Warner. After the drag strip I had a terrible noise around 2500-3200 RPM, I swore it was the turbo. So I rebuilt the turbo, the thrust bearing was completely smoked and black. So I thought that was the issue, well it wasn't. Rebuilt it again using a different CHRA, same thing. Well after looking and looking and looking I found the tab for the dump tube broke, causing it to vibrate on the downpipe which traveled up to the turbo.
TL;DR Had noise, found noise, fixed it.
As the car sits with a half tank of gas in it.
TL;DR Had noise, found noise, fixed it.
As the car sits with a half tank of gas in it.
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