I just looked at your graph again, there must be something wrong with your setup and it must not just be your Mivec settings. Look at your hp graph and compare it to mine. You are making under 150whp at 4000 RPM and I'm making about double of you. I know the FP red is a littler larger than the Dom 2 but this is pretty crazy. Is your peak boost coming in at around 5000 RPM?

 

how do you suggest me to test my set up to prove that your guess is in fact correct? i would like to find out and see if the external dump is a bad idea or not.

xtremeboost, do you experience this problem before? i put a copper gasket between the two exhaust "port". would the pressure be too great that the gas would seep through the gasket and bypassing the turbo. pls advise.

although the tq and wp is "late" but would a "leak" in the dp be killing the tq and hp at all and make the boost not holding. i mean i am still making 380whp and 330wtq which is not that bad.

thanks guys

kl

 

are they doing a pull from 4000-7500 rpm. they should not be???

something does not seem right on my dyno graph when i compare to my previous dyno. i am making 225whp at 4000 rpm on the previous one and only 140ish whp at the same rpm this time. something is not right.

should i check with my tuner.

thanks

kl

 

The only way you can test or see the leak easily is to remove the O2 housing and check for traces of carbon crossing over to the exhaust flow.

 

I don't think anyone would start a pull at 4000 RPM. How does the car actually feel? Does the peak boost actually come in late like at 5000 RPM?

 

i am not paying attention. does not feel like a big boost leak to me and the car feel great. will do a pull tomorrow and report back.

the flange o2/dp/external WG pipe is thick and the tuner put a copper gasket on it so it should go on pretty nicely without a leak (i hope)

the tuner is reputable and should report to me if the dyno graph looks weird to them, so i hope my car is in good shape. if not i will re-dyno my car in an other shop just to double check. by the way i will report back tomorrow.

when you say "peak boost actually come in late like at 5000 RPM" should i keep an eye on the boost gauge, floor the car and see what rpm my car hit the peak boost (25ish in my case) or how should i test it and in which gear? 3rd or 4th?

thanks

kl

 

that is some decent top-end u got there bro.

 

Peak boost as in at what RPM does it hit your highest boost. It would be much easier if you had a logger so you don't have to eye ball your boost gauge. You should do the pull in 4th gear (not in public of course ) going WOT from around 2000 RPM.

You should browse around the Evo X Dyno section to see dyno graphs from other users. I don't think I have ever seen such low HP at around 4000 RPM.

 

will do a pull at 4th from 2000 rpm tomorrow and report.

i have seen others dyno and mine seem very low. the tuner must gave me a graph from the pull from 4500 to peak or something.

my tuner did not say anything when i picked up the car so i guess it must me ok. maybe i will call my tuner up tomorrow.

kl

 

I doubt you have any leak between the wastegate and turbine wheel exhaust flow. Even if you did, it's probably very minimal and not that important.

Also, it seems to me that the tune is pretty good, as your torque is near max at 4000rpm which is pretty normal for the FP Red isn't it?

But I still think your setup is hurting your power.

 

do you think that my set up hurting my power a lot.

should i up the boost and timing and tune the mivec to get me up to the 400ish mark?

kl

 

If that was true the car would be laggy as hell and would make hardly any boost


if the flapper is open 100% and you have a external wastegate right after it, it could create a ton of exhaust turbulance in that area.

Do you have any photos of your actual setup on the car?

 

Take a look at his graph again, his max torque is at 5000 RPM and at 4000 RPM it is only about half.

 

The set-up he has should not have any sort of leak at that location . We have been running the same setup in our own car for over 25,000 miles with nothing but great outcomes . His slow spool can be attributed to a low pressure spring in the wastegate ( which I already talked to his tuner about two weeks ago ) or to a very mild tune which so far is also a very likely cause for his lower then expected power .


..

 

Something is definitely off. You're lagging by almost 1000rpms and even the torque seems low. The torque should stay pretty flat also considering the amount of boost you are on. That dyno might be reading a little lower than a dynojet, if that. So, do a pull and see where full boost comes on and maybe your boost at 3000 or 3500 rpms.