Cam+header+headwork= ?

[vntned]

Check this out. MP 767 cam(Shelby cam gear), hedman (1 3/4'' primaries 3'' collector) hedder, 2.25'' strait pipe(glasspacks dont count, right?),and the stock head milled .030'', the car is other wise a stock '84 GLH HO. What kinda power increase are you guys thinking? I was hoping for about 450 at the wheels, but I think that might be stretching it! : )

Also do you think Ill need a different timing belt or tensioner?

Thanks!

[Sirus]

Quote:

Originally Posted by DaytonaTurbo87 Well the turbo 1 cars made around 150 HP and were pushing 7-9psi of boost. Your main problem is getting air in and out. The supercharger kit mopar sold in the 80's had a HP rating of 130HP using a 5psi pulley + stock carb IIRC. Kinda gives you an idea of what you're competing against.

The old HO's Used to make 107-110HP

[afsautoworx]

im gonna guess your car probably has like 130-150hp at the MOST. Youll never get a 2.2 all motor to make 450hp. Get nitrous or turbo. You shouldnt need a different belt or tensioner, but from milling the head and a different cam, i think you might be able to get some extra power from an adjustable timing gear. What kind of carb are u running?

P.S-Isnt the 767 cam for turbo cars?

[vntned]

The 450hp was a joke. Im not one of thos ehonda guys that thinks a throttle body gives 38hp. The 767 cam is for the N/A engines it is a 460 lift cam. Im running the stock Holley carb and please dont try to convince me to get a weber.

[afsautoworx]

Ok i was kind of wondering about the 450hp haha. The stock holley carb isnt bad, webers are good too. I think the adj. cam gear is still a good idea

[RPMurph]

allmotor got a N/A car up to about 380hp i think....but it did have like a $2000 crank among lots of other goodies

450 at the wheels is definately possible with a 16v turbo

[vntned]

Im hoping for somewhere between 130hp-140hp at the crank. Id really like to run consistant 16.0s in the 1/4 mile.

[afsautoworx]

Quote:

allmotor got a N/A car up to about 380hp i think....but it did have like a $2000 crank among lots of other goodies

380hp? probably not a 2.2 anymore

[DaytonaTurbo87]

130-140HP should net you 16's at the track with a 5sp. If you cut .030 off that head, you'll be sitting at 10:1 on a HO engine. That's a fair amount of compression, make sure your ignition timing and octane level will handle it. IMO cutting the head .030 will only give you an increase of maybe 4HP, as IIRC, the rule of thumb is every .5 of compression you add is worth a 4% increase on power, so you'd have to add 1-1.5 points to your CR to see any real noticeable gains, which would probably be around 15HP if you went up to 11:1, which is pretty high already. High compression doesn't make much HP on it's own, it's higher compression used in conjunction with a higher duration cam that does it. I think I'd spend the money on back cut valves and I'd try my hand at possibly porting the head a bit before I spent the money on milling the head, from an already respectable 9.5:1, but hey, do what you want.

I still do think that the intake manifold/carb choices on these cars isn't the best. I always thought of the idea of modding an intake to accept a small 4bbl carb, or at least a bigger(and simplier designed) 2bbl carb, lol.

[detobias]

180 Hp NA 2.2 ; august 1986 Hot Rod ; I put a scan on my website

you may have to do a 'right click ; save as ... ' to get it to work

http://www.cee.mtu.edu/~detobias/8_86_HotRod.pdf

[vntned]

all my head work only cost me $82. pressure chcked cleaned and milled .030''

[DaytonaTurbo87]

Quote:

Originally Posted by detobias 180 Hp NA 2.2 ; august 1986 Hot Rod ; I put a scan on my website you may have to do a 'right click ; save as ... ' to get it to work http://www.cee.mtu.edu/~detobias/8_86_HotRod.pdf

sounds cool, but have you looked at what a dual side draft weber setup costs? lol.

[afsautoworx]

i didnt know DC offered a nitrous kit...thats pretty cool.

[allmotor]

Quote:

Originally Posted by RPMurph allmotor got a N/A car up to about 380hp i think....but it did have like a $2000 crank among lots of other goodies 450 at the wheels is definately possible with a 16v turbo

actually 350hp. dual weber 44mm side drafts, dry sump, crank fire ignition (holley programable ignition system) Callis billet crank, MP billet mains, Crower rods, JE pistons @ 280grams, MP big valve head (flowed by me) custom made Isky cam .600 lift, titainum spring retainers. total cost with all parts was $10,000.

[afsautoworx]

350hp at what rpm? did u run this motor in your circle track car