Apex-i S-AFC NEO
05-12-07, 04:16 PM
#31
What kind of valve does the Boostlogic kit run? I am assuming that it's a bypass valve that recirculates back into the intake. If so, then there shouldn't be any stalling issues or need for the decell feature on the S-AFCII or Neo, right? I would only be running into the stalling issues if I decide to use the HKS SSQV and let it vent to the atmosphere, right?
Last edited by GoCarSc300; 05-14-07 at 01:33 AM.
05-14-07, 06:42 AM
#33
never seen the boostlogic kit, but everything that boostlogic does or builds seems to be top notch... I would assume it's done the right way... (recirculate)
but honestly, with a friends Supra and a vent to atmosphere BOV, and nothing to compensate for it, it wasn't horrible by any means.. his was auto, and It only died on me once when I accelerated quickly from one stoplight, then the next turned red, I let off abruptly, and it died... nothing bad, throw it in neutral, restart...
most of the time when it stumbled it would catch itself...
but honestly, with a friends Supra and a vent to atmosphere BOV, and nothing to compensate for it, it wasn't horrible by any means.. his was auto, and It only died on me once when I accelerated quickly from one stoplight, then the next turned red, I let off abruptly, and it died... nothing bad, throw it in neutral, restart...
most of the time when it stumbled it would catch itself...
05-15-07, 12:11 AM
#35
Intermediate
keep use posted GoCarSc300 , Thankx TTSC3 & mitsuguy your inf helped. Im working on my NA-t kit now, i decided to go with the SAFC 2 also. GoCarSc300 if you find a wiring diagram let me know.
05-16-07, 10:58 PM
#37
I talked to Kean at Boostlogic today and the turbo kit doesn't have any type of blow off valve or bypass valve at all. He said that so many people use different BOVs and BPVs that they do not include one with their kit. He does recommend getting one in order to relieve stress on the turbo, but at low boost it is not absolutely necessary. He said as far as getting a good tune on with a BOV (without going the whole AEM EMS route) a Greddy E-Manage Ultimate or MAP-ECU 2 would work nicely. Both of these systems change the MAF system and then it's read from the intake manifold (I think). Without the MAF system a BOV could be vented to the atmosphere or recirculated without stalling issues.
05-16-07, 11:45 PM
#38
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a wideband o2 sensor and a egt gauge is what is needed to tune your car u need to keep an eye out on the egt so u dont over heat and melt pistons.
optimal for a/f is 12.5:1 at wot and stoich is 14.7:1 keep it at 11.5:1 to 12.5:1 thats optimal for tuning turbo
optimal for a/f is 12.5:1 at wot and stoich is 14.7:1 keep it at 11.5:1 to 12.5:1 thats optimal for tuning turbo
05-17-07, 05:28 PM
#40
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DO NOT, tune to 12.5 on pump gas. 11.5 is where you need to be, with it tapering down towards the top of the powerband. If for some reason you get a boost leak, the car will go lean and that will be bad.
05-17-07, 05:30 PM
#41
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I talked to Kean at Boostlogic today and the turbo kit doesn't have any type of blow off valve or bypass valve at all. He said that so many people use different BOVs and BPVs that they do not include one with their kit. He does recommend getting one in order to relieve stress on the turbo, but at low boost it is not absolutely necessary. He said as far as getting a good tune on with a BOV (without going the whole AEM EMS route) a Greddy E-Manage Ultimate or MAP-ECU 2 would work nicely. Both of these systems change the MAF system and then it's read from the intake manifold (I think). Without the MAF system a BOV could be vented to the atmosphere or recirculated without stalling issues.
05-18-07, 09:59 AM
#42
I am just worried about the fact that with the SAFC it keeps the MAF and does not change it to speed density, so if I do weld the BOV onto the IC piping I'm gonna have the stalling issues. Even with the decell air feature on the SAFC and the recirculation kit I heard it's not always perfect, so I guess I'm being a little picky about it but I do want it to work perfectly. It makes me just want to throw the kit on without the BOV so I wouldn't have the stalling issues, but then the turbo will be stressed because there's no BOV. It should be safe on the stock boost setting of 7lbs, but I don't necessarily want to risk that either. Decisions, decisions...
05-18-07, 10:08 AM
#43
I am just worried about the fact that with the SAFC it keeps the MAF and does not change it to speed density, so if I do weld the BOV onto the IC piping I'm gonna have the stalling issues. Even with the decell air feature on the SAFC and the recirculation kit I heard it's not always perfect, so I guess I'm being a little picky about it but I do want it to work perfectly. It makes me just want to throw the kit on without the BOV so I wouldn't have the stalling issues, but then the turbo will be stressed because there's no BOV. It should be safe on the stock boost setting of 7lbs, but I don't necessarily want to risk that either. Decisions, decisions...
05-18-07, 10:13 AM
#44
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I am just worried about the fact that with the SAFC it keeps the MAF and does not change it to speed density, so if I do weld the BOV onto the IC piping I'm gonna have the stalling issues. Even with the decell air feature on the SAFC and the recirculation kit I heard it's not always perfect, so I guess I'm being a little picky about it but I do want it to work perfectly. It makes me just want to throw the kit on without the BOV so I wouldn't have the stalling issues, but then the turbo will be stressed because there's no BOV. It should be safe on the stock boost setting of 7lbs, but I don't necessarily want to risk that either. Decisions, decisions...