GT40 Tech - Engines/Induction/Exhaust | Forum profile

Interesting Andrew.... Never been north of 45 degrees on a SBC. What type of induction (Carb / EFI / Port / TBI etc?) You can do a lot to reduce detonation by mixture cooling but at a cost of power.. SBF's have a more efficient cylinder head / port layout than SBCs in my opinion. That's why Ford's require so much less timing...

Quote: Originally Posted by Bobs 9401 Hi All, I,m going to start to build my exhaust so I,m looking for pictures of the bundle of snakes that are used. I've searched the forum and not found a lot of good pictures of the hole exhaust, would any of you guys like to share some pictures to get an idea of what I need to build. Thanks, Bob Nothing beats this drawing from the original spare parts manual, to show how the exhaust is made: Note...

Opps, I guess that would be good to know, sorry its a 302 ford small block. Thanks, Bob

what kind of shockmounts do you use ? on the original i saw two different mounts, one with a vertical axle and one with a horizontal axle.

the Ansen spacers? they were about eighty or ninety bucks, from Mustangs Unlimited ( Mustangs Unlimited - The Premier Source for Mustang, Shelby and Cougar Parts and Accessories ). I still have to order the valve covers themselves, which are a stock item. Ansen makes other stuff, but it is all the theme-park kind of stuff I am trying to get away from using. Workmanship is nice, though.

This is for the FE powered MKII & MKIV cars, but being colour coded help you follow where they go.

Hey Bob... I was out and about today in my 40 and drove by your place... You must have been at a packer party

You know, Ron, it's been so long ago that this issue was discussed that I had just plain forgotten about the differences between European and American octane ratings...thanks for pointing this out! Doug

Quote: Originally Posted by YerDugliness OVery seldom do you find "premium" fuel above a 91 octane rating where I shop....93 seems to be a dream and you probably need to mix in some av-gas to get up to a 97 octane rating. Be careful when discussing octane ratings across the pond. I wrote a thread about the octane ratings between the US and UK some years back. The two methods of calculation are different and US 93 is equivalent to...

91 octane, 10 to 1 CR, 302, 280 duration, 550 lift Hyd roller, current aftermarket Alum heads with 2.02/1.60 valves, Holley 750 DP, 36 degrees total advance all in @ 2500, Mechanical secondaries and advance, 6300 rev limit, free breathing exhaust. Use highest quality rod bolts and don't go cheap on the balance work. This combo should get you 1.25 - 1.3 HP per inch and a long life, trouble free, high value to $ ratio ($10-13/HP) , street...