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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Question - VVT-i engines
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Sat, 03 December 2005 03:15
 
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| CoronaC wrote on Sat, 03 December 2005 12:47 |
I thought camshaft work/mods would mainly be a disadvantage to the vvti system?
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Depends what you are trying to achieve. VVTi can help fill the "hole" that big cams leave in the bottom end - mind you, "bottom end" in a highly modified 4 cylinder might be 4000 rpm. The main issues are really with regard to valves clashing with the piston or each other depending on what is advanced or retarded and at what time (that depends a bit on valve angle etc).
My recommendation would be a BEAMS dual VVTi 3SGE if budget extends. With 200 hp, it should be plenty lively.
The head does benefit from porting (you'll understand if I don't divulge too much here). As for what size cams to use with the standard ECU, chat to some of the larger cam guys (Tighe, Wade, Kelford) and also check the profiles available from TRD.
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