GT30R--New FMIC, CAI w/ EFI retune

[chlnOrSlpn?]

Ok, so I was happy with my car previously, but I felt like it still lacked some of it's potential. I spoke with Chris over and over again about what I could do to get a little more out of my set up. He kept telling me that a better FMIC would help me out a lot. I picked up a Perrin FMIC and made my own CAI and also swapped my N1 for a COBB catback(quieter) Chris worked his magic on my car again.

For some reason my car really likes to punish Chris on the dyno. My car was having some sort of boost control issues and well I ended up swapping out my prodrive solenoid for a MBC. It seems to have sorted the issue out, but it doesn't hold boost as well as the prodrive sure did. I'm not sure how I feel about using a MBC yet, but one things for sure...I always trust Chris's decisions. I'll save the prodrive for when I go Meth.

I feel bad that Chris had to endure the problem my car was giving him, but I appreciate the time and effort he put in making sure I left happy and problem free!! Thanks!!!

Perrin GT30R .63 a/r
Perrin FMIC
ChlnOrSlpn? Custom rotated CAI
COBB Catback
OpenSource Tune by EFI

Everything else the same as before, except on 23psi now I really need some Meth to let this turbo shine! Since my 740cc injectors are close to maxed out.

OLD #'s: 321whp/320wtq @20psi


NEW #'s: 355whp/362wtq @23psi





Here are some pics of the new set up...

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[mls1]

Nice setup. Looks fun to drive.

[uncle lewie wrx]

Interesting Chris used a MBC because on IWSTI he bashes them to the point of no return.

[chlnOrSlpn?]

Originally Posted by uncle lewie wrx

Interesting Chris used a MBC because on IWSTI he bashes them to the point of no return.

He hates using a MBC...I don't like them either, but it worked. It will do for now until I get a meth kit and clutch.

[9d2TSi]

Just out of curiosity, which mbc is it? I know they're not popular with a lot of people, but I've always gotten the best results with the Hallman pro. Sorry to jack your thread, but thanks for any info.

Nice and clean set-up btw.

EDIT: Nvm the question...lol. Vision owns me.

[Equilibrium Tuning]

The prodrives have a hard time controlling some EWG's. The ports on it are very small so it has a hard time flowing enough air to properly actuate the larger wastegates. I've seen them cause some insane spiking. If you want to retain a 3-port solenoid, check out the Grimmspeed as it has much more appropriately sized ports. That being said, the Hallman MBC is still my top choice

-- Ed

[chlnOrSlpn?]

Originally Posted by Vaus

The prodrives have a hard time controlling some EWG's. The ports on it are very small so it has a hard time flowing enough air to properly actuate the larger wastegates. I've seen them cause some insane spiking. If you want to retain a 3-port solenoid, check out the Grimmspeed as it has much more appropriately sized ports. That being said, the Hallman MBC is still my top choice

-- Ed

Interesting... It's really strange because it was working for the last 10 months. I guess the changes could have an effect on it, but in the end I'm happy.

[moreboost]

Nice ride! Good #'s as well. I like that trunk, I like it alot!!

[chlnOrSlpn?]

thanks!

[Equilibrium Tuning]

Its a bit strange that your boost spikes up to 23psi and drops to around 20psi by 5500RPM. It looks like you're using a turbo-smart MBC which are generally pretty good. This may signal that you have a boost leak or a pre-turbo exhaust leak. When using the Hallman MBC on a very similarly set up car, we had no problem holding a nice consistent boost curve all the way to redline.

-- Ed

[EFI Logics]

Originally Posted by Vaus

The prodrives have a hard time controlling some EWG's. The ports on it are very small so it has a hard time flowing enough air to properly actuate the larger wastegates. I've seen them cause some insane spiking. If you want to retain a 3-port solenoid, check out the Grimmspeed as it has much more appropriately sized ports. That being said, the Hallman MBC is still my top choice

-- Ed

I agree Ed, It was just getting late at the shop and we needed to finish up.. Funny thing was I needed to actually find an MBC at my shop, because we don't normally stock them. I went over the car completely, and there wasn't a boost / Exhaust leak anywhere.. With the ProDrive, I was able to sustain boost really nice, problem was not so much spiking, rather increased un-commanded WGDC by redline for no reason. I would see almost 4psi boost error by redline, yet the ECU would still jam more WGDC at it, no matter what I commanded, I even limited the amount of TD the ecu could compensate for, yet it would still jack up WGDC.. It was frustrating to say the least. I have started with a completely new Rom image and will finish the car with a new BCS and tune when Chris put's a few more mods on it.

- Chris

[Equilibrium Tuning]

Originally Posted by EFI Logics

I agree Ed, It was just getting late at the shop and we needed to finish up.. Funny thing was I needed to actually find an MBC at my shop, because we don't normally stock them. I went over the car completely, and there wasn't a boost / Exhaust leak anywhere.. With the ProDrive, I was able to sustain boost really nice, problem was not so much spiking, rather increased un-commanded WGDC by redline for no reason. I would see almost 4psi boost error by redline, yet the ECU would still jam more WGDC at it, no matter what I commanded, I even limited the amount of TD the ecu could compensate for, yet it would still jack up WGDC.. It was frustrating to say the least. I have started with a completely new Rom image and will finish the car with a new BCS and tune when Chris put's a few more mods on it.

- Chris

Interesting issue... hit me up sometime if you want help figuring it out.

-- Ed

[k04sti]

Meth is the way to go~! I am now a believer

[jaxscuby]

nice numbers & all..
but you should add water/meth & retune
at same boost..and you won't need to add
larger injectors..

what did you afr's look like before & after?

[chlnOrSlpn?]

Originally Posted by jaxscuby

nice numbers & all..
but you should add water/meth & retune
at same boost..and you won't need to add
larger injectors..

what did you afr's look like before & after?

The AFR's have always been maintained at 11.0 If i recall correctly. This is the first time my car has seen above 20psi. I have spoken with Chris and Meth is the way to go. I will go that route once I get a clutch to hold the power. With Meth, I could probably gain more with the same boost level or less, we'll wait and see.

My Injectors are at about 94% right now so Meth will definitely help me in that department. I'm impressed for it being my car(always low dyno #'s) and being on a Mustang Dyno.

I think with the amount of tunes I have gotten from Chris I could have had a built bottom end I change my mind like I change socks.

[Phatron]

Originally Posted by EFI Logics

I agree Ed, It was just getting late at the shop and we needed to finish up.. Funny thing was I needed to actually find an MBC at my shop, because we don't normally stock them. I went over the car completely, and there wasn't a boost / Exhaust leak anywhere.. With the ProDrive, I was able to sustain boost really nice, problem was not so much spiking, rather increased un-commanded WGDC by redline for no reason. I would see almost 4psi boost error by redline, yet the ECU would still jam more WGDC at it, no matter what I commanded, I even limited the amount of TD the ecu could compensate for, yet it would still jack up WGDC.. It was frustrating to say the least. I have started with a completely new Rom image and will finish the car with a new BCS and tune when Chris put's a few more mods on it.

- Chris

I had this problem on my car.....the WGDC was being very strange...it was actually matching up to the auto tranny wgdc map in the ecu even though i was running a 5 speed.

I copied over the manual table into the auto table and went and did more runs.....but the WGDC was still using the auto table from before even though i had put the manual table into it.

I pulled the battery and reset the ecu.....this fixed the problem.

I guess a real time map had somehow been left over from my AP.....

IIRC just resetting the ECU via romraider didnt work....i actually had to pull the battery.

Since this car used to run an AP I bet there is a left over real time map floating around in there.

[EFI Logics]

Originally Posted by Phatron

I had this problem on my car.....the WGDC was being very strange...it was actually matching up to the auto tranny wgdc map in the ecu even though i was running a 5 speed.

I copied over the manual table into the auto table and went and did more runs.....but the WGDC was still using the auto table from before even though i had put the manual table into it.

I pulled the battery and reset the ecu.....this fixed the problem.

I guess a real time map had somehow been left over from my AP.....

IIRC just resetting the ECU via romraider didnt work....i actually had to pull the battery.

Since this car used to run an AP I bet there is a left over real time map floating around in there.

I actually thought of this, and disconnected the battery as a last ditch effort that night.. But, admittedly, I did work on the car for an hour before I thought of some left over realtime data... But it didn't fix the issue.. I'm still thinking it's something to do with the Rom data, and that's why I'm starting with a fresh file.. It may fix the issue entirely.

- Chris

[Gfunk720]

Nice #'s on that Mustang! Interesting to see how much of a difference the Perrin FMIC made over the old SSAC(IIRC) one

Definetely needs some meth and it will be beastly! Full torque by 4k RPMS and holds HP pretty much to redline