⛔★ Low rpm almost stall after clutch in (tuning)
#1
Evolving Member
Thread Starter
⛔★ Low rpm almost stall after clutch in (tuning)
Hey guys my evo 8 rpms fall really low like 200-300 rpm after I push the clutch in if I just accelerated with the car way past maybe 4k rpms, but it recovers. I'm glad I don't have it stalling everytime.
Is there anything I can do tuning wise to fix this? I have the tuning cable and have already messed around with many setting in the ECU just have not messed around the fuel map. Not even sure if messing with the map would help this. Or if there are any other settings I could change to fix this issue? Maybe setting for the idle control valve? I set my idle rpm at 1000 by adjusting the big screw on top of the TB.
I know I don't have a boost leaks nor a vacuum leaks, I already fixed the TB seals and tested the piping up to 35psi with a compressor. MAF Is also clean and car idles perfect.
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Is there anything I can do tuning wise to fix this? I have the tuning cable and have already messed around with many setting in the ECU just have not messed around the fuel map. Not even sure if messing with the map would help this. Or if there are any other settings I could change to fix this issue? Maybe setting for the idle control valve? I set my idle rpm at 1000 by adjusting the big screw on top of the TB.
I know I don't have a boost leaks nor a vacuum leaks, I already fixed the TB seals and tested the piping up to 35psi with a compressor. MAF Is also clean and car idles perfect.
.
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supak111 (Nov 1, 2016)
#4
Evolving Member
Thread Starter
Yes I have a wideband bud
And my evo has a act flywheell, not sure if its lightweight (bought the car with it), with a twin plate clutch.
Also just remembered its set up to use a BOV not a recirculating valve, maybe this is my issue? Car was tuned by AMS I'm sure they took this into consideration.
But I'm not even into boost when this happens, I just accelerate up to say 3500rpms, no boost, push the couch in to say slow down or just coast and the rpms drop to almost stall and recover a second or so later. Add thing is that it doesn't happen everytime, maybe even 5th or 6th time. Other times rpms go down slowly and just stop at 1000rpm. Its almost like the idle control valve is slow to recover the rpms. Do these have issues with idle control valves? Perhaps its dirty, we on Hondas had issue with these all the time.
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Also just remembered its set up to use a BOV not a recirculating valve, maybe this is my issue? Car was tuned by AMS I'm sure they took this into consideration.
But I'm not even into boost when this happens, I just accelerate up to say 3500rpms, no boost, push the couch in to say slow down or just coast and the rpms drop to almost stall and recover a second or so later. Add thing is that it doesn't happen everytime, maybe even 5th or 6th time. Other times rpms go down slowly and just stop at 1000rpm. Its almost like the idle control valve is slow to recover the rpms. Do these have issues with idle control valves? Perhaps its dirty, we on Hondas had issue with these all the time.
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#6
Evolving Member
Thread Starter
I was afraid of that. I have a very nice and expensive r2d2 BOV on the car. To recirculate it I would have to do some ghetto engineering. And my intake now doesn't even have a opening for a recirculation. I'll try to figure something out.
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#8
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Not to mention, The more airflow you produce the MAF is a bottleneck. Setups for example extracting 700WHP+ if you throw a MAF on there, they will drop 70-100WHP from being restricted so badly. Its a very big loss in power.
#9
Evolving Member
Thread Starter
Yea I'm thinking I'm going to sell the BOV and buy an new intake and recirculating valve. Intake I have now like I mention doesn't have a hole for the recirc valve. Its just a custom intake from he MAF to turbo
What intake is everyone running with there recirc valve? I saw a few smooth silicone intakes on eBay, they look like they flow way better than the stock rippled intake.
I don't really want to go SD, I'm only pulling 400whp, don't really need more honestly as this is my daily.
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#10
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Originally Posted by supak1111
Yea I'm thinking I'm going to sell the BOV and buy an new intake and recirculating valve. Intake I have now like I mention doesn't have a hole for the recirc valve. Its just a custom intake from he MAF to turbo
What intake is everyone running with there recirc valve? I saw a few smooth silicone intakes on eBay, they look like they flow way better than the stock rippled intake.
I don't really want to go SD, I'm only pulling 400whp, don't really need more honestly as this is my daily.
.
What intake is everyone running with there recirc valve? I saw a few smooth silicone intakes on eBay, they look like they flow way better than the stock rippled intake.
I don't really want to go SD, I'm only pulling 400whp, don't really need more honestly as this is my daily.
.
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gsrboi80 (Nov 10, 2016)
#13
Evolving Member
Thread Starter
Plus my car is now tuned for a bigger smooth aluminum intake between turbo and MAF. Putting the stock intake back on would mess up the tune. I'm trying to fix my issue by changing as little as possible so I don't have to get another AMS tune.
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Last edited by supak1111; Nov 11, 2016 at 10:14 AM.
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