Wow, you guys are really stirring thing up.
I've known Sporty and T-Bone for a few years on the forums and they know what my truck is all about. You don't need to get ticked off with them, they are just standing up for what they know.
As for my intentions with the truck? To have fun. It was built way back in '91-'95 as a street driver. Never intended on running the 1320. It's built for handling, with air ride and IRS. The T-Bird IRS is rated at the max of 450HP in the Super Coupe with drag slicks. The IRS is my power limiter. I designed the engine for 425 HP and 500ftlb at the fly wheel.
A typical street engine is going to give you a 1.1-1.2 ft lb to cubic inch factor. I'm hitting between the 480-500 mark.
As for the 331 hp, notice where it's dropping of. The cam is rated for 2000-5500. At 5500rpm, it would be around 360 rwhp or in the 425 hp range at the fly wheel. When I ran the dyno, I was still on the stock 1988 fuel pump, which is at best, capable of 350 hp. I know I was having a fuel issues when I was doing some flatout runs on the highway. It was also way to rich. Once I got the wideband on it last year, I was seeing A/F ratios in the low 10s.
I'll be hitting the dyno in June for a dyno day the Stang club has organized.
A 302 is great for a Stang, but not a 4700 lb truck.
A 302 needs just as much machining as a 351, so how would it be cheaper. I was building an engine from scratch, so I had to buy everything anyways, so just I just bought bigger stuff.
If I was trying to extract every bit of power out of the engine, I wouldn't be running shorty headers, Performer RPM intake, Edlebrock 750 and an 1800-2200 stall TQ.
Yes, I do have to do the emissions test. Tailpipe sniff only, but I have to meet the levels of a stock '88 EFI 351. I detuned it so much for the test, it was barely drivable. It passed with only a high flow cat and no other emissions crap on it.
The cam is mild at idle, very little lope at all. I was thinking of going for a larger cam, but it is a pleasure to drive, so why ruin it.
Here's the dyno run from the above posted sheet.
