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Things have gone from bad to worse. Took off work last Friday as that was the only dyno time available. Car is far worse off than before and I have no idea why.
I fixed my cracked intake manifold, fixed all boost leaks tested via smoke machine, checked my injectors by FIC $100 dollars later they are not only fine but flow within 2% of one another. Installed a brand new Spoolinup COP, brand new OEM EVO IX PLUGS gapped to .19 (That's how they came), car misses even worse now. It only made 380 WHP at 22-24PSI and sounds like a 2 step under boost. part throttle is perfect. Spool up is fantastic and car is smooth and idles right around 1000 RPM's with the S2 Cams.
I’ve paid for 2 dyno tuning sessions and the car simply won’t run. I’ve had it and I have no clue the issue.
Original Post. Freshly Built FP RED EVO Not Making Power
Hello Gents,
I have a small issue and hopefully it won’t balloon into a big one. Previously I had an Evo IX stock Block with a FP RED & GSC S1 drop ins make 460 WHP and 400 FP’s of torque at 29PSI dropping down to 27PSI. at 26 PSI it made 420WHP and 350 FP’s which is where I kept it mostly.
I have recently built my motor. Block out and bored 0.02, 9.0-1 Compression 2.0 Liter. Added an AMS Intake manifold, GSC S2 Cams, Springs, and Retainers, Buschur Ported TB. Engine is fine runs good zero smoke and the turbo is healthy as well. Car has a AMS FMIC and AMS Turbo back 3.0 no Cat. Red is the BB variety.
I brought the car over to K.P. Tuning in PA this weekend and it barely made power. Can’t run over 6 degrees of timing or more than 24PSI without knock. KP stated it could be my FIC 1150 Injectors which I purchased used back in 2011 and have never them cleaned. KP said they may be dirty or not flowing well. He said the injectors have plenty of duty left in them but as I drive the car it is still pig rich, throttle tip in before boost it drops to the low 10’s in A/F.
Any advice? The attached Dyno is of a Dyno Jet which they said reads low but still, can’t run over 24PSI on a Red or timing?
Recent Build Dyno Stock Bottom End Build. Boost here was 26PSI and 29PSI Respectively. This was on Ivey's Dynoject.
*Disclaimer*
I know you can’t compare different dynos and different setups and different tunes. K.P. was very safe with my vehicle and you can see he cares about the cars. My issue is that I can’t make power past 24PSI or add significant timing. Car is smooth and a little rich right now as I drive it, certainly better then when I brought it in for sure.
Thank you
Last edited by High_PSI; Sep 23, 2019 at 05:55 AM.
That's definitely a good place to start - anytime I ever get used injectors, they're always sent out to be cleaned. Was it holding fuel pressure? Do you have an aftermarket regulator?
Maybe I missed it, but what fuel are you running? If you have a set of 8year old injectors and you've never cleaned them, my guess would be that they are certainly not working like they should and need to be flow-tested and cleaned. I would take your tuner's advise. Pop those injectors out and send them out to be tested and cleaned or see if he recommends a different set of injectors as tuners usually have a preference.
That's definitely a good place to start - anytime I ever get used injectors, they're always sent out to be cleaned. Was it holding fuel pressure? Do you have an aftermarket regulator?
Stock FPR. I have a Walboro 255LPH. KP said I have plenty of fuel and it is a stock frame turbo on pump gas so nothing spectacular. I run 93 Pump Gas.
The Red makes around 420-450whp or so on 93 octane on STD correction on a dynojet. My stock engine would make 430whp on 22-23psi on pump gas ( I had access to E85 so I never ran it hard on pump gas) The AMS intake may be mismatched for a small turbo but it should still make more then a stock manifold at higher rpm.
In any case, I would start with a leak down and compression test.
Check physical timing
Are the charge pipes clean with no oil.
Spark plugs gapped to .018-.020 . (FWIW I ran one step colder then stock ) A small gap and a colder plug may make the car idle slightly worse but will help with cylinder pressure when its on the boost.
Coils in good shape or a good COP setup
Boost leak test with someone opening the TB open/close
Zip tie all vacuum lines
Decide if you are going to go with larger injectors/fuel pump to really make some power and add safety.
Your tuner can try adding race gas and adjusting the knock sensors to rule out false knock. Having the dyno set to low smoothing will show some clarity on how the car is responding .
The Red makes around 420-450whp or so on 93 octane on STD correction on a dynojet. My stock engine would make 430whp on 22-23psi on pump gas ( I had access to E85 so I never ran it hard on pump gas) The AMS intake may be mismatched for a small turbo but it should still make more then a stock manifold at higher rpm.
In any case, I would start with a leak down and compression test.
Check physical timing
Are the charge pipes clean with no oil.
Spark plugs gapped to .018-.020 . (FWIW I ran one step colder then stock ) A small gap and a colder plug may make the car idle slightly worse but will help with cylinder pressure when its on the boost.
Coils in good shape or a good COP setup
Boost leak test with someone opening the TB open/close
Zip tie all vacuum lines
Decide if you are going to go with larger injectors/fuel pump to really make some power and add safety.
Your tuner can try adding race gas and adjusting the knock sensors to rule out false knock. Having the dyno set to low smoothing will show some clarity on how the car is responding .
My Compression is 165 across the board. I realize MIVEC vehicles tend to read lower but 165 should be good enough. My compression is 9;0-1 with a Weisco piston and a Manly H-Beam Rod. Plugs are gapped way high to .40 that may have something to do with it but my tuner says .18 is stupid low and with such a tiny Arc you’ll never burn gas properly and gas mileage suffers tremendously.
I installed a Spoolinup COP back in 2011 and I love it. Wonder if the coils are old? Will boost leak again but it was tested prior to getting the car. The TB has been rebuilt by buschur and has new Thottle Shaft Seals..
My Compression is 165 across the board. I realize MIVEC vehicles tend to read lower but 165 should be good enough. My compression is 9;0-1 with a Weisco piston and a Manly H-Beam Rod. Plugs are gapped way high to .40 that may have something to do with it but my tuner says .18 is stupid low and with such a tiny Arc you’ll never burn gas properly and gas mileage suffers tremendously.
I installed a Spoolinup COP back in 2011 and I love it. Wonder if the coils are old? Will boost leak again but it was tested prior to getting the car. The TB has been rebuilt by buschur and has new Thottle Shaft Seals..
Thank you
There's your problem. Factory gap isn't even that big. You need to close the gap to .020". You're having misfires not knock.
Based on what your "tuner" said and how he couldn't tell misfire from knock, you need to find a new tuner before this guy ruins your car. Getting the injectors cleaned is a good idea, but you clearly have plenty of fuel and I don't think this will solve the issue. All my money is on that ridiculous plug gap.
If right gap kills fuel mileage, ask him why factory gap in an EvoX is .020".
They are 100% not fantastic if they are telling you to run .040" plug gap and then didn't understand why the car didn't make power and had a bunch of "knock" which was actually misfires.
There's your problem. Factory gap isn't even that big. You need to close the gap to .020". You're having misfires not knock.
Based on what your "tuner" said and how he couldn't tell misfire from knock, you need to find a new tuner before this guy ruins your car. Getting the injectors cleaned is a good idea, but you clearly have plenty of fuel and I don't think this will solve the issue. All my money is on that ridiculous plug gap.
If right gap kills fuel mileage, ask him why factory gap in an EvoX is .020".
Yeah I just found this out. Next time I'll gap it myself.
My Compression is 165 across the board. I realize MIVEC vehicles tend to read lower but 165 should be good enough. My compression is 9;0-1 with a Weisco piston and a Manly H-Beam Rod. Plugs are gapped way high to .40 that may have something to do with it but my tuner says .18 is stupid low and with such a tiny Arc you’ll never burn gas properly and gas mileage suffers tremendously.
I installed a Spoolinup COP back in 2011 and I love it. Wonder if the coils are old? Will boost leak again but it was tested prior to getting the car. The TB has been rebuilt by buschur and has new Thottle Shaft Seals..
Thank you
165psi sounds good.
Evo and mileage don't exactly go together but I ran .018-.020 on my car since the red went on and historically got 18-25 mpg on E85 or pump gas with 4.11 gearing . I would 100% close the gap from a prius style .040 gap. These cars make power and have cylinder pressure to deal with.
In your video, what is that air sound kicking up a notch about a second after each gear change? Sounds like some sort of air leak after boost hitting a certain pressure.
On my phone, it's at the -26, -23, and -18 second marks.
In your video, what is that air sound kicking up a notch about a second after each gear change? Sounds like some sort of air leak after boost hitting a certain pressure.
On my phone, it's at the -26, -23, and -18 second marks.
Jun 18, 2019, 06:20 AM
