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CPH · 03-02-2007

Originally Posted by jack75

I'm quite surprised by the 300BHP only with an induction kit, remap et complete exhaust !! It makes 50BHP with few mods....

I was thinking remap & induction kit would give around 15-20HP, no more and an additionnal 30 just for the exhaust (manifold/cat/backbox) is a lot !

no ?

The problem with the induction on the GTA is that it really spoils the capabilities of the 3.2. This is why even Autodelta, K&N, Pipercross and a few more gain something over ther standard system. BMC does already a bit better but is still far away from a real induction kit as it is supplied with thw wrong bits.

The mentioned induction gave an initial improvement of 12.8bhp (torque improved as well [for UKoldskool

]) before the ECU was able to adjust properly. The exhaust was fitted at a later time and gives about 21bhp as a single modification. Exhaust and induction enhance each others improvement. With a proper re-map (supplied by Chipped UK; wouldn't trust anyone else) the claimed figure was achieved enabling a proper driver to achieve a high 13 1/4mile time.

03-02-2007	#32 (Post Link)
CPH AO Member Join Date: Dec 2005 Location: Essex Posts: 127 Member car: Alfa 33 16v	Re: 156 GTA Tuning Originally Posted by jack75 I'm quite surprised by the 300BHP only with an induction kit, remap et complete exhaust !! It makes 50BHP with few mods.... I was thinking remap & induction kit would give around 15-20HP, no more and an additionnal 30 just for the exhaust (manifold/cat/backbox) is a lot ! no ? The problem with the induction on the GTA is that it really spoils the capabilities of the 3.2. This is why even Autodelta, K&N, Pipercross and a few more gain something over ther standard system. BMC does already a bit better but is still far away from a real induction kit as it is supplied with thw wrong bits. The mentioned induction gave an initial improvement of 12.8bhp (torque improved as well [for UKoldskool ]) before the ECU was able to adjust properly. The exhaust was fitted at a later time and gives about 21bhp as a single modification. Exhaust and induction enhance each others improvement. With a proper re-map (supplied by Chipped UK; wouldn't trust anyone else) the claimed figure was achieved enabling a proper driver to achieve a high 13 1/4mile time.