Hi all, I'm running a 1990 Series 1 Buick 3800 V6 in my VN. It runs fine, and its being fitted (by me) with cold air intake, extractors, exhaust, and recoed heads with uprated 110lb valve springs. I'm looking to fit a Crow 6071563 camshaft (207/210 degrees @ .050" lift, .472" max lift, 112 degree lobe centre). Its rated as 2000 to 6000rpm. From experience this shouldn't be too crazy, just a nice bump over the stock camshaft, which in the series 1 motor is about 195@.050" and .440" lift. My question is: With the above modifications, will the standard Memcal be okay or will I need an aftermarket / tuned one? I'm not after every last ounce of performance, merely a good upgrade over stock without losing too much economy or drivability. Ideally it would be better in all respects. If anyone can help me out with some info I'd be very appreciative. Cheers - boingk
Where are you getting cam from? Mace do some cam/memcal options and they are great to deal with. Dyno for accurate tune Mail order for ball park tune
Thanks for the quick replies gents, I suspected as much. I'll get onto the local performance shop tomorrow then. Cheers - boingk
If your local bloke can't sort a tune, speak to Mace anyway and tell them exactly what you have cam wise and other upgrades. They can arrange a tune that will be pretty close to what you need. Like Deuce said Mace sell a package ready to go. Unfortunately the number of dyno tuners doing memcals have dropped off over the years, compared to what it once was.
Honestly wouldn't bother unless upping the compression etc. Shorter diff gears will make more of a difference & better bang for bucks.
endless options , check out Mace for a memcal tune , they're quite cost effective , a dyno tune while more expensive would give better results .
IF you change the cam it will need a tune, With the later style MAF engine management systems you can get away with it and it will run but with MAP it's going to be way off when it's a decent. The simple reality is, Cam = tune.
