Performance engine tuning modifications. :- Dont torque to me like that!

[obi_waynne]

Basic engine mods : You want to avoid ending up with a high BHP engine that has an unusably narrow torque band! Rather than look at a peak power figure attention should be paid to the torque curve.

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[HDi fun]

Yes

 

[T9 man]

^^ Yes +1

 

[TCJBOLDIE]

Yes +2
my 4G63 has been bored out to the recommended max oversize and the stock 88 mm stroke crank replaced with a 100mm stroke to give me 2323cc capacity for more torque .

 

[Teenager2413]

hey everyone i have to agree my astra it only a 1.6 twinport petrol but as factory standard it only 105 bhp but the torque figure is 160 which is a bit silly but i means i have a nice power band but the way it drives at top end is weird due to the fact it come off cam at 4500 and at 5000 you feel it come back on cam it wierd i want to get it mapped to try and sort this issue and get the bhp up lol (only a little though)