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this is a bit of a dark art here ... make sure you really want cams and know why you are fitting them. Your current T5 cams are 240 duration/8.65mm lift.
One to also consider here is Abbott Racing - they have an interestng set of cams and if you want plenty more 'balls' in the midrange without making the car laggy then the 243 / 9.5 cams would be good. (Mainly lift). Pretty sure these are Catcams sourced (Abbott cheaper)
Maptun do a nice 260/9.5 (non-regrind) which would be a very nice road cam.
And another in sweden that does an Enem style copy for a good bit cheaper (can dig that out).
The SD cams are regrinds IIRC - which is why they are cheaper. Pretty sure they are more duration, but hardly any extra lift so might not be what you want.
I have a GT3071R and got 445bhp (402whp) with the 0.86 housing and T5 cams. If you have the 0.64 housing then it responds well the Enem 264 cams and gives about 450bhp but probably a wider powerband.
Which housing do you have? My point is that if you already have the 0.86 housing and want the car to be any 'quicker' in real driving then don't overcook it..
In the end I have recently fitted some regrinds to mine 256 / 9.3mm lift but I have yet to dyno. They cost 175GBP Feels good on the road with a small loss low down but definite sparkle past 6krpm.
What you will also find is the Cam timing makes a really big difference here too.
For a turbo car, you want to increase lift (no great downside) and carefully increase duration to keep it drivable.
I guess the questions would be:
Which GT3071R housing do you have ? 0.86 or 0.64?
What sort of driving is it for?
What final drive do you have? (tall or short gear box)
posted by 91.85.136...
, Wed, 16 Dec 2009 14:13:42
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