FWIW, while I've had many, many issues with my turbo track Miata, the FM hotside hardware hasn't really been among them.
Andrew's stuff is really nice though. --Ian |
Originally Posted by nitrodann
(Post 1512479)
Piss your gaskets off and use inconel and stage8 on everything.
Solved. Dann 1. I wasn't looking for the issue before, so maybe took more than a day to develop 2. I never tried more than low boost (~250whp) since I was going to wait to the afternoon for high boost in case of running into issues (that way I'd only lose a few hours of track time, not half the day!) but a rain shower just after lunch removed all grip for the rest of the day so I didn't try more boost. Though despite this, the seeds of doubt have been planted so maybe I should be planning for a TSE kit in my future.... Does anyone know which MX5 series in the UK is closest in pace to spec miata? I'm trying to work out how hard many people have pushed this kit and comparing back to spec miata lap records seems to be the benchmark. (For reference, the track was Rockingham International Super Sports Car and I was lapping just under 1:35s on 205 Federal RS-R on 8s (and 225 Federal RS-RR on 9s -oddly no faster), ~250whp and ~#2750 weight since I was taking (heavy!) passengers all day) |
Are you asking how hard people have pushed TSE kits, or how hard people have pushed FM kits?
I can answer the former pretty definitively - an off-the-shelf TSE kit is the basis for the fastest Time Attack Miata in the world (949Racing's car). Roughly 20 seconds faster than a Spec Miata on a 2-minute course |
Originally Posted by Savington
(Post 1515266)
Are you asking how hard people have pushed TSE kits, or how hard people have pushed FM kits?
I can answer the former pretty definitively - an off-the-shelf TSE kit is the basis for the fastest Time Attack Miata in the world (949Racing's car). Roughly 20 seconds faster than a Spec Miata on a 2-minute course |
I've been having these same issues on my FM2 kit at 220hp. Also have lost center section bolts before. 1 weekend at NCM and every bolt was loose down to the down pipe. Including my FM inconels.
Have a TSE inconel set and going to try resbond on everything down to the down pipe this year. Also planning on adding another exhaust hanger. Right now its unsupported to the rear subframe. If I can't get more than 1 weekend still, it's time for the EFR. |
Originally Posted by Tran
(Post 1515279)
Apologies, I meant how hard has the FM kit been pushed. We've all seen how hard the TSE kits have been pushed with the various 949 and TSE cars! |
Again, the studs & other fasteners on my (resbonded) FM hardware have not been an issue. No loosening despite 300+ rwhp and Laguna Seca lap times a second or more below the Spec Miata record. No, I'm not as fast as Andrew around that track, but that's got more to do with my driving and the suspension that was on the car than anything related to the motor.
AutoFreak57: did you resbond the FM studs? --Ian |
FM doesn't include resbond AFAIK.
|
Originally Posted by Savington
(Post 1515338)
FM doesn't include resbond AFAIK.
--Ian |
I'm sure the Trackspeed kit is bulletproof, however, my FM manifold/downpipe has been bulletproof for the past 3 years. And yeah, it's been Resbonded.
|
Mine was no resbond. Main turbo studs won't last a weekend. The downpipe bolts make it 2 with cheap studs.
I'm hoping resbond is the magic glue everyone says it is. Efr is better, but I need good enough for st4 power. |
Do you monitor EGTs?
--Ian |
No. 14psi, 220whp on a dyno dynamics. Never had issues until I tracked the car (imagine that).
|
Originally Posted by AutoFreak57
(Post 1515374)
No. 14psi, 220whp on a dyno dynamics. Never had issues until I tracked the car (imagine that).
--Ian |
TSE Inconel has worked well on the manifold for me. Nord-Locks on the downpipe and a good transmission attachment has been critical.
|
Correction. No resbond. . There is a down pipe-transmission brace. Gt2860. Yr 1-2 @12psi. Last year 16psi. It's done 4 3hr. W2w mini enduros/30 min. Sprint races + lapping. Pretty sure we just copied bbundy's downpipe brace setup. Fm stuff works just fine for me. |
Originally Posted by endura
(Post 1515623)
Correction. No resbond. . There is a down pipe-transmission brace. Gt2860. Yr 1-2 @12psi. Last year 16psi. It's done 4 3hr. W2w mini enduros/30 min. Sprint races + lapping. Pretty sure we just copied bbundy's downpipe brace setup. Fm stuff works just fine for me. --Ian |
Originally Posted by bbundy
(Post 1515384)
TSE Inconel has worked well on the manifold for me. Nord-Locks on the downpipe and a good transmission attachment has been critical.
|
Originally Posted by AutoFreak57
(Post 1515725)
That's good to hear. Gives me hope in my setup. Can you share a picture of your trans attachment?
Side note I use a long runner mild steel schedule 40 weld ell manifold. It's is not near as robust as a cast Iron short manifold like TSE's It needs even more protection from the weight of the exhaust system. It is not without troubles. after some design refinement and reinforcement to the collector portion of it and a good design for a support bracket for the turbine housing It will generally last about a season of track use at best. The mild steel does allot better with thermal expansion than stainless but eventually enough heat cycles will crack it. |
Originally Posted by codrus
(Post 1515647)
What octane do you run?
--Ian |
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