I was wondering what the factory redline is for this motor with the original cam/springs.

The factory dyno runs it up to 5K, my buddy said 5500....

I've got one in my '88 Camaro and it's BAD A$$ (used to be a 6).

I've got a problem when I run it past about 4800, it just falls flat on it's face!

I'm running a full MSD ignition (mechanical advance), and a Holley 600 (with a secondary metering block), performer RPM intake, and 1-5/8" shorties into a custom 3.5" cat back (no muffler).

It will smoke the tires (big whoop) when i nail it in first under about 40, and it hazes them on the 1-2....

I only took it up to 5200 twice (because it stopped pulling) to see what it would do.

I hope I'm not floating the valves!

Is this probably a carb/ign problem?

If you want to know, I'm running a TH-350 and an open 3.42...

Anyone with this kind of setup- any tuning tips, dyno numbers, or times?

Thanks in advance,

John

[This message has been edited by 812MANY (edited October 09, 2000).]

 

What intake are you running????

------------------
TPI 305,
Gutted airboxes,
gutted MAF,
K&N filters,
Corvette Servo.
14.9@93mph

"Speed kills, wanna live forever, drive a Ford."

 

Performer RPM

 

The cam is too mellow for your intake/exhaust/enigne combo. (or your intake is too big for what you got, depending upon how you look a tit.)

Assuming you want a little more rpm/power, find out the specs on the cam and go one (or two) sizes bigger, making sure that the springs you have can take the lift and that the reainers don't hit the valve seal/guide area. This will help a lot w/RPM intake, but low-end will suffer slightly if you go with much bigger cam. A good combo would be performer intake and 204/124 (.420"/.442") or 214/224 (.442"/.465") cam, but seeing as you have RPM, just keep it and try one of those cams.

what are the specs on that cam in there now?????///

I just went to SDPC: cam is 195/202, .390"/.410", which is pretty mellow.

the 204/214 (.420"/.442") is a pretty big step up from that, believe it or not. It WILL make a pretty big difference in power and rpm range. The 214/224 (.442"/.465") cam will add about 500rpm or more to the top-end you would see eith the 204/214 cam but I like the 204/214 better for overall driving/mileage/throttle response.

[This message has been edited by FastBroker (edited October 09, 2000).]

[This message has been edited by FastBroker (edited October 09, 2000).]

 

bottom end will hold alot of rpm, but the cam and heads limit the rpm. mostly cam at this point. want to turn it harder, change some parts, it'll handle it.

 

I'm thinking about throwing a TPI setup on it within the next few months, gas mileage SUX!

And maybe adding some 1.6 RRs to it (it wouldn't help with the duration, but the added lift might help).

I don't want to tear the motor down too far. It's the 4th motor I've put in this car in the last 3 years, and before this it had been sitting for a year and a half, and it's my daily driver!

I'm trying to keep it as reliable as possible, but still have a little fun.

I don't normally beat on it, I just don't want to be hurting it when I DO get on it.


Thanks,

John