What kind of power are you getting from your worked 308?

[redcv6]

a cousin of mine has just purchased a worked pavtec 308, its a carby engine. he has: port and polished heads. large vavles, flat top pistons, 9.5:1 compression, hot cam, balanced crank, quadrajet carbi. power output seggested by pavtec is 300hp
what do you guys reckon. does anyone have one that they could give me rough figures of what kind of power this engine will put out.

it will be going in a hq and realisticly he was hoping to get it down quarter mile low 12's

he is unsure whether to keep the engine or sell it and buy a worked 350.
i told him to keep it, stroke it and supercharge it ( i was going to type stroke and blow it, but it sounded abit too sexual) anyway let me know what you guys think.
cheers johnny

[redcv6]

anyone have knowledge on these motors?
johnny

[greenfoam]

300 hp at the flywheel probably wont get a HQ into the 12's maybe low 13s

[HRT 666]

G-day wogstar6, I think your cousin will be a bit surprised to find that combo will put out more than 300hp. I have a vk with 308 standard bottom end jp gear drive with a cch286 hyd crane cam anti pump lifters chrome moly push rods L34 heads chev lt1 springs and yt 1.65 roller rockers with performer manifold. looking at 350+hp flywheel. hope that gives ya a bit of an idea of what to expect. cheers steve.

[redcv6]

cheers hrt 666 i will be sure to let him know, thanks for the help. greenfoam i agree with you and say that it wouldnt get him in the 12 seconds let alone low 12's but thats idealy what he wants in the end even to brake in to the 11's. cheers guys
johnny

[vq~gangsta]

My VH could break 12 seconds when it was stolen before the heads were even run in properly.

When i bought the car it could break 14s (faster than Brockey's VH at Batherst!). It had a blue printed and balanced bottom end, yella terra heads with the biggest valves, it was bored out a bit, it had forged pistons with the divots in the top to prevent valve bounce, and a pretty wimpy sig erson cam.

I then rebuilt the heads, added special valve seats for LPG (nickle chrome alloy i think), added a stage 3/4 cam (half inch valve lift, 280 degrees duration), twin two and a quater inch exhaust and moved the battery into the boot to make room for a 90mm pvc cool air intake and changed the 600 Holley for the stock 720 Rochester. I even got the car through Recency Park (SA defect Nazis) with a 2 inch single exhaust i had made up for the inspection.

When it was stolen it could do 12 and a half with the crappy cardboard style LPG air filter on it. I drove it once with no filter and it was WAY faster, but i never actually timed it down the quater with no air filter.

The Licence plate was UMY 973, and it can be identified by 3 pairs of holes on the passanger side of the engine bay opposite the extractors where a heat shild i made bolted on, and a 90mm hole where the battery should be. If anyone knows who has my beautiful car could you please torture and murder them for me- i would like to suggest a boiling molassas enima, it's the least i could wish upon someone whome stole a car that I invested hundreds of man hours into.

I guess that the moral of this story is that if your car is worth stealing, immobilise it. I thought the car would be safe right out the front of the main enterance to the Bunnings that I work at, but evidently no where is safe.

[greenfoam]

My VH could break 12 seconds when it was stolen before the heads were even run in properly.

When i bought the car it could break 14s (faster than Brockey's VH at Batherst!).

Just so you know the HDT VH group C cars were 11 second cars not 14+ there's videos of some of the HDT cars running a 1/4 mile on my youtube