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Stian's 1992 trackday weapon
8 Attachment(s)
After working for years modifying my 1991 BRG with greddy-kit...
https://www.miataturbo.net/attachmen...1&d=1321944799 ...to the point where there was hardly any greddy-kit left, I came across this black 1992 Miata. The car has been built up from scratch with lots of quality components and custom work. I decided to join the darkside, so now I have both a Miata and a MX5 :-) The new Miata trackday toy: https://www.miataturbo.net/attachmen...1&d=1321944974 https://www.miataturbo.net/attachmen...1&d=1321944974 https://www.miataturbo.net/attachmen...1&d=1321944974 Here's the current state of the vehicle: Engine Block
Head
Forced induction
Engine management/fuel/ignition
Cooling
Suspension & brakes
Drivetrain
Aero/wheels/etc.
The car was in it's glory days dynoed to 408rwhp/346lbft @ 25psi. Currently we're at 276rwhp/244lbft @ 16psi, but the plan is to get it back to a stable tune of 350-400whp. The car is currently being taken apart for an overhaul and I will write more in depth later about plans and ideas for next season, but here's what I've summarized so far. Short term plans:
Future plans: (hopefully all done by next spring)
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I want that intake manifoldddddddd
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Reroute: win
17" wheels: fail |
Originally Posted by curly
(Post 798024)
Reroute: win
17" wheels: fail |
This is pure win from start to end.
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10 Attachment(s)
Here is one of the reasons I am looking for a new turbo:
https://www.miataturbo.net/attachmen...1&d=1322001029 The second one is that this old Turbonetics beast takes forever to build up boost (it hardly produces boost before 3500rpm), so I am looking for something a bit more responsive but with still room to go after top end power... Currently I am debating these ones:
Most likely I will end up with the 3071, partly because I see that my fellow norwegians HF & Inglar are doing so well with their 30-setup, and the fact that I can get a T3 house for it with a 5bolt outlet, similar to what I have now. So with a bit of luck it could be almost bolt on... But I will ofcourse do some more research before I finally decide which one to go with... Attached a couple of overlayed comparisons between the different turbos. https://www.miataturbo.net/attachmen...1&d=1322003798 Blue GTX3071, Yellow=GTX2867, Pink=EFR6258, Red=GT3076 |
Originally Posted by stian
(Post 798035)
I see your point, but with 336mm brake disks, that is unfortunately the smallest wheels I will be able to fit...
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Originally Posted by curly
(Post 798414)
I see. Do you already have them? If not, it's a waste, go with 15" wheels and TSE's 11.75" BBK. If you already have them it's understandable, and we'd like some pictures ASAP.
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2 Attachment(s)
Originally Posted by curly
(Post 798414)
I see. Do you already have them? If not, it's a waste, go with 15" wheels and TSE's 11.75" BBK. If you already have them it's understandable, and we'd like some pictures ASAP.
https://www.miataturbo.net/attachmen...1&d=1322046623 |
very nice car i build a miata for track day's too :).
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Originally Posted by stian
(Post 798520)
Yes, they were already on the car when I bought it, and yes, they are probably overkill, even for 24h races! But I doubt it's worth replacing them with a smaller BBK to be able to fit the 15' 6ULS. The first trackday will give me the answers to that ;)
https://www.miataturbo.net/=28674&stc=1&d=1322046623 |
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While the huge brakes are cool as fuck, trust me when I say you'd be better off with event the "base" Wilwood 11" kit...even happer with a TSE kit.
I was previously running the Brembo GT kit with 315mm rotors. Looked fantastic, worked great..but I honestly like the Willwood 11" kit I replaced it with and now I can get 15" wheels when the budget allows...and slicks for 15" wheels are WAY cheaper than slicks for 17" wheels. https://www.miataturbo.net/attachmen...ine=1322079883 Parking lot quickie by AnonymousNamelss, on Flickr |
I already have R888's on 15, and I certainly see the point of high running costs so I will for sure consider this...
How does the TSE brakes handle excessive track-use? No problems with overheating? |
The 11" kit is picky about rotors, they're still only $30 for stock corrado rotors, but more than a few brands have been known to crack, and they're very heavy.
The two piece 11" rotor solves most of these issues, unfortunately the replacement rotor rings cost $80 a piece. FM, Goodwin, 949, and other big miata companies sell 11" kits with varying options for varying prices. TSE was the cheapest, however they no longer sell the 11" kit. The newer 11.75" kit is where it's at. $250 more than the 11" kit for the initial purchase of the rotor hats at $125 each, but the actual friction ring that you'll be replacing is only $30. Plus the hat fits the spindle properly so you won't need a centering ring like the corrado rotors. And apparently the extra .75" makes all the difference. I have the 11" kit and love it, so that says big things about the BBBK (biggest big brake kit). Only downside to the 11.75" kit is that it pushes the limit of 15" wheels, only a few have been found to fit. I know my previous enkeis and current Konigs don't fit. 6uls require a small 5mm spacer (no extended studs required). TSE is the only company selling this kit. There is a "DIY" 11.75" kit that uses a Mini Cooper radial kit, and has more clearance, but is a little more work and no cheaper in the long run. This kit can be found any number of places online, you'll need to ask around and search to get the specific part numbers, and there's a rough write up floating around somewhere. |
obviously this guy has also been visiting the garage where inglar and myself work on our mx5's not often 3 owners of 400ish whp mx5 get together in a small country like norway. im not sure if theres any more of us :D
cool to see your project here aswell Stian.. if you fix the issues we discussed, the car will be fast and fun again.. |
Originally Posted by stian
I already have R888's on 15, and I certainly see the point of high running costs so I will for sure consider this...
How does the TSE brakes handle excessive track-use? No problems with overheating? |
at my power levels i have never had brake issues either. heavy track use. your big brakes might be overkill, and for sure not properly matched with the rear brakes with the stock regulator etc as we discussed. The car is a great startingpoint and with some select mods, it will be very fast on a track.. oh.. ditch the crappy street tires, get som R coumpounds. at close to 400whp it is almost pointless driving with anything else. :)
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Sweet you're from Bergen. I almost went there a month ago so. Perhaps in the spring once it warms up a bit ;)
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Nice. Details on intake manifold please?
Also, please go gt35! 500hp or bust! |
Nice car. More about the intake please.
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