That's one of the best ways to get a handle on the power...Make sure it's SAE corrected and on a "Dynojet" and in 3rd gear (AUTO), You'll also need to take it up to near 4K rpm before flooring it, in order to keep from down shifting (the dyno guys can explain to you).........Mustang dynos are another good option, there real good for tuning but, it's not easy to get a handle on the true power your making. Now, don't be dissapointed if the SAE numbers are like 300? Your not even sure if this guy got it tuned correctly...! yet... so who knows....The point is you'll have a great reference for later parts adding....

Jimbob

 

Doubt it made the power, but I made 384rwhp(before my tune) with my cam thats smaller than the cc305 and stock ported heads on a stock bottom end, so baby cams can run good.

 

There have been way too many cars through here to remember them all, and I can't remember that car. Nothing new there, I'm old. Terrible case of CRS. I remember John looking in the dyno computer for that car's tests. We lost the hard drive a while back, so don't have a lot of cars from past years in this one. Not saying we/he didn't, but I don't remember it.

I have done SEVERAL head & "Hot" cam A4 cars that made 360 to 375 SAE. A few have made more. A lot of "built" engines don't. Way more only make 350 or so. The numbers will look better on a Dynojet with a stock converter & gears, just won't go down the track nearly as quick. Hot cam only A4 cars normally makes 315 to 330. Some more, several made less. I have seen some below 300. I have had two or three 383"s below 300 in here. If my base tuning is rich @ WOT on the first pull, I know it is likely going to be a weak one. If the engine does not pump enough air, it doesn't need the fuel.

Some ported cylinder heads are not all that much, and don't make any more than a good cam-only car. If you let your buddy down the street got a flow bench for Christmas do your heads, don't expect much. The heads are key.

Tell him to go find a dyno and see what it makes. Stock gears & converter will certainly make one dyno well, but feel weak. Heck, it might just have 2.73 gears.

Good luck, Ed

 

Thanks alot, the guy who had it had bought it from a friend 2 weeks prior to when my friend bought it and only knew what his friend told him, im willing to bet that the numbers were pretty inflated on his friends part, but nothing that cant be fixed, alot of the hard part is done, its got a good base w/forged internals and hopefully if the tune was actually done, that too, it seems its just some boltons away, some longtubes, ory, converter, shiftkit, and cooler should wake it up quite a bit, he also has a 150shot for it, so its not going to stay in current condition!

 

Yeah, but that "smaller" cam you were running is a multitude of times more agressive than the CC305.

387 is doable with the CC305 in the proper setup. You just need to have everything working together and a good set of heads to compliment the cam. Heck, I made 375 to the ground with a XE 224/230, through a cat and with a very smallish set of heads that flow very well (175CC intake runners is what I'm talking about, most ported LT1 heads get hogged out to the 190-195ish range). It's all in the setup, but if there's guys who spent the time and effort tweaking a hotcam and heads car to put 380-400 to the ground, the same results are attainable with the CC305.