SALIV8

Has anyone had experience in a cam upgrade on a VR/VS 304 without modifying the standard ECU and still running well?

If so what cam choice did you go?

Thanks
SLE

PVE

If you invest in a cam installation you need to have it retuned.

Any improvement from a CAM CHANGE that retained the original fuel and spark tables would result in next to no gain and could well be detrimental to engine life and performance.

Here are the HSV 195, 215 and 220kw cam specs.

Even the 195i had a specific tune (EPROM) which is the 304 or 5.0 litre in a VT.

HSV - 195 - 215 - 220 kw cams.jpg

CAM and CHIP Packages can be a real hit and miss, some work and some don't; they are always conservative.
Best option is to tune, by someone who knows what they are doing.

rlj308

can the stock 808 with a chip be tuned i was told by redcliff dyno they wouldnt do it with out a haltech or the like.

PVE

You have two options

1. A Tuner with Kalmaker for the 808
2. A Tuner with TunerPro

The Kalmaker lets you tune more of the variables/tables.

There is no need to go to an aftermarket system unless it is really radical full on race - Also, aftermarket systems generally don't have control for good ; idle, transients etc....

pumba

i personally recomend kalmaker. i have a kalmaker memcal in my SS and after it was tuned, it ran great. mind you, mine is an unopened motor, but had nealry every bolt on u can get.

rlj308, u being from brisbane area, there are not many places that deal in kalmaker software. but if u want to no any, send me a PM and ill let u no the places i know of that have kalmaker around brissie

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rlj308

pm sent.