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Forum: Pontiac - Street 11-19-2021, 04:29 PM
Replies: 14
Views: 2,803
Posted By dmac
Watch the fan shroud

Watch the fan shroud
Forum: Pontiac - Street 10-14-2021, 01:17 PM
Replies: 40
Views: 3,130
Posted By dmac
For a street car running pump gas, getting the CR...

For a street car running pump gas, getting the CR right should top concerns over flow. I doubt that performance at street RPMs will vary much if at all, but 'street' use can mean different things to...
Forum: Pontiac - Street 04-13-2021, 04:38 PM
Replies: 92
Views: 7,796
Posted By dmac
It is nice to see how simulations can be very...

It is nice to see how simulations can be very close to real world results.

I should have said that Lee ran simulations of about 4-5 stock cams from various manufacturers and several different...
Forum: Pontiac - Street 04-09-2021, 03:51 PM
Replies: 92
Views: 7,796
Posted By dmac
A member here ran quite a few simulations for a...

A member here ran quite a few simulations for a low CR, low rpm , high torque and came up with using the ultradyne H5 and H15 lobes on a 115 LSA advanced 8* and it had almost 500 ft/lbs of torque at...
Forum: Pontiac - Street 04-01-2020, 12:36 PM
Replies: 41
Views: 7,963
Posted By dmac
Easiest way to check- swap batteries with another...

Easiest way to check- swap batteries with another vehicle. See if their battery works in your car, and vice versa. A lot easier than crawling under vehicle and cleaner too.
Forum: Pontiac - Street 03-06-2020, 01:22 PM
Replies: 49
Views: 6,556
Posted By dmac
Only compress them the little bit you need Even a...

Only compress them the little bit you need Even a cheap spring compressor will work well if only asked to compress a little.
Forum: Pontiac - Street 10-16-2019, 03:36 PM
Replies: 44
Views: 3,480
Posted By dmac
Manufacturers put that warning on everything to...

Manufacturers put that warning on everything to avoid a lawsuit just in case there might be something in their product. Other than a few cancer causing products being unavailable, there is really no...
Forum: Pontiac - Street 05-31-2019, 06:58 PM
Replies: 20
Views: 2,990
Posted By dmac
Cometic can make MLS head gaskets almost any...

Cometic can make MLS head gaskets almost any bore/thickness you want- this should be pretty representative of the price because this one is a made to order item. .012 thick, 4,200 bore, $228, don't...
Forum: Pontiac - Street 05-27-2016, 11:54 PM
Replies: 33
Views: 2,746
Posted By dmac
Not only can't DCR be calculated for any one...

Not only can't DCR be calculated for any one engine, but it will change with rpms, temp, speed, exhaust back pressure, temp. etc, etc, etc, etc.
Forum: Pontiac - Street 01-25-2014, 03:49 PM
Replies: 70
Views: 3,353
Posted By dmac
Try to find something with 72 cc or a little more...

Try to find something with 72 cc or a little more for the 350. If you are still planning on a 400 in the future, You could find something with about 80 cc or more, and that head will work on the 350...
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