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Do I need to remap with these mods?

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Old 23 May 2014, 07:26 AM
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jumbomechanic
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Default Do I need to remap with these mods?

Hi guys,

I'm just about to fit a replacement engine to my 1998 v4 sti type R. The engine is exactly the same (heads etc) just with forged pistons n rods.

I was thinking, at same time, if I added the following 3 mods, would I need to remap (as this would involve a new ecu etc and big cost......money I haven't got):

1. FMIC - surely this just cools the intake air which the standard ecu measures the temp of anyway ie. just like a colder day?
2. Induction kit - doesn't this just allows less restricted airflow to the turbo, but doesn't affect the amount of air coming in, so no affect on fuelling etc?
3. A decatted full system exhaust - doesn't this just get rid of the exhaust gasses faster AFTER the combustion process, so not affecting fuelling etc?

I might be talking complete rubbish, but if I do really need a remap, can you guys please explain the reasons why? Be gentle!!!

Thanks for any help/suggestions!

Cheers

Last edited by jumbomechanic; 23 May 2014 at 07:27 AM.
Old 23 May 2014, 08:43 AM
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Andy Stevens
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You might get away without one but you won't optimise the mods if you don't. You don't need a new ECU, OEM can be mapped with ESL and includes MAFless, twin map, knock control, diagnostics, closed loop idle, ALS, LC, TC, FlatShift, etc etc. Prices from £295+VAT.

www.enduringsolutions.com
Old 23 May 2014, 08:46 AM
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BrownPantsRacing
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Yes. Need remap.
Old 01 June 2014, 08:07 PM
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300gnspitzer
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Why would you make those mods if they didn't make any difference?
Old 01 June 2014, 08:35 PM
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Overson
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Originally Posted by Andy Stevens
You might get away without one but you won't optimise the mods if you don't. You don't need a new ECU, OEM can be mapped with ESL and includes MAFless, twin map, knock control, diagnostics, closed loop idle, ALS, LC, TC, FlatShift, etc etc. Prices from £295+VAT. www.enduringsolutions.com
Hi I've got a 99 uk classic, can I get my car maped to be MAFless with OME and have LC ALS added ?
If so who does it ?
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