My turbo MX-5
#41
copied from mx5nutz.com:
Here’s my trackday IAT logs for past 4 years:
MP62 Coldside without any "charge cooler" = +120-150°C
MP62 Coldside with e-cool "fuel inj. cooler" = +60-90°C
MP62 Coldside with two water inj. nozzles = +50-70°C
(all these were 10-14psi)
GT2560 turbo @16psi and big FMIC = +140°C before IC and +25-30°C after (ambient +20°C)
And I have to add. With 98RON fuel it was pinging every time IAT gone over +70°C. Basically all the time in track. street driving was fine. With E85 FFS kit was finally "trackable"
Here’s my trackday IAT logs for past 4 years:
MP62 Coldside without any "charge cooler" = +120-150°C
MP62 Coldside with e-cool "fuel inj. cooler" = +60-90°C
MP62 Coldside with two water inj. nozzles = +50-70°C
(all these were 10-14psi)
GT2560 turbo @16psi and big FMIC = +140°C before IC and +25-30°C after (ambient +20°C)
And I have to add. With 98RON fuel it was pinging every time IAT gone over +70°C. Basically all the time in track. street driving was fine. With E85 FFS kit was finally "trackable"
#46
Elite Member
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Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,642
Total Cats: 42
Awesome setup, I wish I could ape it. I'm just using something similar to your first setup, it's no power monster, but it suits me OK.
#47
Boost, compression ratio, amount and type of fuel are all factors. And quality of rings, too.
Can't just say "my COPs were fine at 15psi"....
#48
Something broke
I did 5th gear WOT run and after that I noticed that car doesn’t pull anymore. Feels like something retard my ignition -20deg backwards. Drove home, remove CAS sensor and clean it, put it back and everything was fine again. Did quick test run around the block and suddenly car dies and won’t start up again.
- has spark
- has fuel
- adaptronic sees CAS and crank sensors.
I did 5th gear WOT run and after that I noticed that car doesn’t pull anymore. Feels like something retard my ignition -20deg backwards. Drove home, remove CAS sensor and clean it, put it back and everything was fine again. Did quick test run around the block and suddenly car dies and won’t start up again.
- has spark
- has fuel
- adaptronic sees CAS and crank sensors.
#50
You’re right it sounds like timing is off. But I’m sure it isn’t. At least cam pulleys are in line.
Stock timing wheel and sensors.
I’m sure it’s something to do with the CAS sensor in the intake cam. I’ll have to buy new one and see
edit: I was right. It was something to do with triggers. Only it was Crank trigger not the Cam one.
yeah. crank bolt has loosen up again. F*ck! second time already this year
Stock timing wheel and sensors.
I’m sure it’s something to do with the CAS sensor in the intake cam. I’ll have to buy new one and see
edit: I was right. It was something to do with triggers. Only it was Crank trigger not the Cam one.
yeah. crank bolt has loosen up again. F*ck! second time already this year
Last edited by muoto; 10-04-2012 at 06:11 AM.
#51
Little update:
Little bit of JB weld to my crank key way and car was running fine again. Old damper pulley looks like it has seen better days so I’m probably get 949's SuperMiata damper next year
Also my new seats arrive. Bride Zeta typeS. Now only thing I need is real roll bars and Takata harness.
Next year I’m focusing more to TimeAttack. My part list to next season:
- rollbar of course
- 6UL 15x9 wheels with some TW140 rubber (my timeattack class limit treadwear to 140)
- Stiffer coilover springs. Moving from 450/350 to 700/400
- 949 Racing SuperMiata Sway Bar kit
- 949 Racing SuperMiata harmonic damper
- TSE 11.75" brake kit
- Honda Integra Type-R intake manifold
- LS2 Truck ign. coils
Little bit of JB weld to my crank key way and car was running fine again. Old damper pulley looks like it has seen better days so I’m probably get 949's SuperMiata damper next year
Also my new seats arrive. Bride Zeta typeS. Now only thing I need is real roll bars and Takata harness.
Next year I’m focusing more to TimeAttack. My part list to next season:
- rollbar of course
- 6UL 15x9 wheels with some TW140 rubber (my timeattack class limit treadwear to 140)
- Stiffer coilover springs. Moving from 450/350 to 700/400
- 949 Racing SuperMiata Sway Bar kit
- 949 Racing SuperMiata harmonic damper
- TSE 11.75" brake kit
- Honda Integra Type-R intake manifold
- LS2 Truck ign. coils
#57
I have been looking Hard dog roll bars. There’s one for sale in UK but due the size of it it’s really pain to get it in here to Finland.
ARTech ftw. Around 10-20 track weekends and still 100% crack free
"Theres so much room for activities!"
Left one 1000miles with gasoline. Right one 10 000miles with E85
From outside there isn’t so much difference between 2560 and 2871...
I’ve been using 0.8mm (0.03") oil restrictor with the old 2560. I’m going to use that with the 2871 too.
What kind a locking nuts do you guys recommend? I already have Inconel studs there
Last edited by muoto; 12-11-2012 at 02:54 PM.