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Old 06-02-2009, 10:16 AM   #1
lateralus1082
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Default Going from Perrin TMIC to FMIC, tune needed?

The FMIC will be a perrin as well. My mods are as follows: VF40, Perrin TMIC, AVO Intake, 3" TBE. The car was tuned by clark turner. Is it imperative that I get a tune for this FMIC?
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Old 06-02-2009, 10:23 AM   #2
HyperSl4ck3r
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Only if you want to see every benefit from the FMIC... Without a tune you may see a little bonus but not everything...
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Old 06-02-2009, 10:35 AM   #3
ljryeaiii
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Are you selling the TMIC?
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Old 06-02-2009, 10:55 AM   #4
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Quote:
Originally Posted by ljryeaiii View Post
Are you selling the TMIC?
Will the 2008 Perrin TMIC fit your 2007?
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Old 06-02-2009, 10:59 AM   #5
lateralus1082
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Quote:
Originally Posted by jpjester View Post
Will the 2008 Perrin TMIC fit your 2007?
it won't.
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Old 06-02-2009, 11:03 AM   #6
steve
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Quote:
Originally Posted by HyperSl4ck3r View Post
Only if you want to see every benefit from the FMIC... Without a tune you may see a little bonus but not everything...
werd.
I went from an oem TMIC to a big APS, and my old tune wasn't as strong. The biggest worry though, is that when you shift or pull off the throttle (when driving aggressively), you'll have a rich bog or backfire, which isn't good for the motor.

Take it easy with the car for now, and prepare for a tune.

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Old 06-02-2009, 11:06 AM   #7
ljryeaiii
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My bad!
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Old 06-02-2009, 02:06 PM   #8
wawawrx
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you're making the pipes from your IC longer than normal, without a tune it won't be compensated for. logic says this will create more turbo lag, but realistically, i believe it won't be an issue. needless to say, an OS tune will make it feel better
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Old 06-02-2009, 03:17 PM   #9
STi Mikey
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Your car may be alright without another tune. Honestly, on any vf turbo a FMIC is not going to do anything for you. You can max it out on an STI TMIC no problem. With the FMIC, there will be a bit more lag. Peak torque and and load will be slightly off switching ICs so a small clean up on the tune will be needed to run optimally.
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Old 06-02-2009, 06:24 PM   #10
TheSurgical
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IMO I say get it tuned. I was running stage 2 Cobb map for a while. When I purchased a FMIC installed it I felt like I made a mistake going FMIC. Then I got an OS tune and my car feels just as responsive as running a TMIC. I say yes but thats just me.
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Old 06-02-2009, 10:29 PM   #11
DG39
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Quote:
Originally Posted by hypa View Post
werd.
I went from an oem TMIC to a big APS, and my old tune wasn't as strong. The biggest worry though, is that when you shift or pull off the throttle (when driving aggressively), you'll have a rich bog or backfire, which isn't good for the motor.

Take it easy with the car for now, and prepare for a tune.

did you still have your stock turbo?
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