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The reality is that most modern car manufacturers, particularly in a turbo engine, run on the side of too rich aas the extra fuel assists in engine cooling. This is why the real benefits will come from increased airflow with larger induction, larger exhausts and a chip to control it all are just the start.14.7 in an ideal world yes. To get more benefits you will need to increase the air flow so as to make use of the 14.7:1 ratio, more air, more fuel, more power. The reason why there is only a small increase is because, generally, motors are tuned near to their power limit for the existing induction, exhaust, timing and other considerations.
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This is why the real benefits will come from increased airflow with larger induction, larger exhausts and a chip to control it all are just the start. There are other ways to tweak the tuning by a chipset as well, like timing and others. Many of the aftermarket tuning chips are done by more incremental fuel increases throughout the rev band compared to the existing fuel map and this can result in smoother running, possible better fuel economy and a slight increase in power/torque. The facts are, the correct air to fuel mixture is 14.7 parts air to 1 part fuel and this is what any exsiting fuel map or updated fuel map will achieve.
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Last edited by mr puddinz 18-06-2009 at 10:31 AM.Ī correctly tuned motor should not run rich whether it be by a new tuning chip or the standard system. i am certainly not looking to make the car a monster on the road but a little extra kick would be nice.Īny experiences or advise whether good or bad re the above would be greatly appreciated. I am happy to spend a little cash, but certainly want what's best for the engine. it was suggested that instead of ecu remapping that the following be considered:
#Dyno chip tuning upgrade#
as explained to me, the theory (to the best of my interpretation) of making a car run richer via the ecu upgrade is bad for the engine full stop. Some tech's believe that an ecu re-program / tuning is a safe and effective way of improving engine performance, others believe that it is a financial disaster waiting to happen. Since my last thread, i made a couple of enquiries with several performance technicians / workshops and opinions vary greatly when it comes to increasing the performance of the standard B5 passat 1.8T engine. i recently wrote a thread regarding ecu remapping and had a very limited response that unfortunately never helped in my initial enquiry. I am again hopeful that someone out there knows enough about the topic at hand.