Comp springs were used. the heads and all components were installed by Golen so I got a longblock minus tb, waterpump, etc but top end was buttoned up.

However, last night the valvetrain was adjusted and we found the driver's side valves were set about a full turn pass the normal preload, the passenger side was at best a bit loose (I adjusted that side due to a suspected tick that ended up being an exhaust leak). Any thoughts here? Would the driver's side cause a big power loss? Thanks for the input.
Rob

 

Hi Bret..

Wow I am not sure how to take a statement like that... I am surprised as you are senior member on this board and both you and I have been here for a number of years that you would jump and say something like that with out getting all the facts…..

I dynoed Robs car last weekend....
The biggest problem we had was the stall speed and shift points (in my opinion the stall speed that is in the car is to high for his application plus shift points are off this tranny would not hold down third and wanted to down shift too quickly each time I laid into the throttle)
At the time I was unable to lock the converter or third gear for this dyno session).
Also Rob car popped the tranny dip stick tube which sprayed tranny fluid all over the place causes a engine bay fire which concluded any more dyno runs for the day. So all in all he only got one clean run for the day.

Just to give you some insight…… I was trying to do was give Rob a full load run to uncover why is car was laying up in the upper rpms. I wanted to see if I could pin point whether he was having problems with valve train tuning etc …
Most don’t understand is that you can not tune or find problems like that If you run the Dyno in Interia style mod. Interia style Dynos are just good at giving you numbers not tuning
As a senior person on this board I would believe that you would fully understand that point
The graph Rob posted clearly shows were I laid into the throttle… also you can see how the car noses off at about 5500 to about 6250 were it spikes to its final peak hp numbers. (I was able to clearly able hear and feel the car laying down under load)

 

Are you kidding? I'd venture to say a 3200 stall Vigi is too small for that application.

I ran a 3200 stall in my previous setup, which ran *very* well. I'll be continuing to run that stall with my LE2, and possibly go "bigger" next time the tranny comes down.

 

Hmmmm I am not here to go back anf forth but you seem to forget this is a stroker motor which makes tons of torque down low even with the cc306 cam Rob car also has 3.73 gears. Robs converter is rated at 3100 (which i s based on a stock cubed motor) but in reality it acts more like a 3500-3600 stall behind the stroker motor when flashed (I was in his car last night after we adjusted the rockers and I can clearly see how high the converter flashed before the car went anywhere

 

I don't see people putting smaller converters behind their 383's to get a good 60'.. but that's just me

That 306 needs a decent sized stall to get out of the hole at the track, bottom line.

 

a cc306 acts more like a cc305 in a bigger cube motor

 

And I'd use a 3200 stall behind a cc305 as well

I guess what I'm saying is, my stock head / torquey 224/230 cam'd car did well with a 3200 stall behind it.

 

I have a 3000 stall behind my 383 with a GM847. Sure I could go bigger but this car doesnt live on the track.

 

Maybe when your knee is up to 100% you can borrow my spare 6 speed.

 

Knee is fine

 

Yes thats what he needs is a 6 speed lol

 

Doesn't really have much to do w/ living at the track or not.... I have quite a few passes on mine, but could easily daily drive it again if I wanted to..

The car has forward motion with no pedal interaction and doesn't need to be revved to all hell to get going off the line on regular driving.

Then again, I'm also one to get every last drop out of my setup

 

I see that this kinda turned into a converter discussion...Reps from Vig told me that, generally, for a street/strip set up,the converter should stall at approximately 900rpm below the peak torque rpm of the motor. I run a Vig 3600 and it could be a daily driver if I wanted it to be...I guess it all depends on the brand/quality of the converter.

--Alan

 

Since this thread seems to be getting off track, I pose the question again would the valve adjust cause the major power loss or should I be looking for something more.
Rob

 

Stock valve size & 48mm TB. Here's your sign.

Another interesting issue pointed out by this guy
I would say Maldo is dead on about the verter and tranny since Comp Cams website recommends a 2500 stall verter for that cam.

http://www.compcams.com/Technical/Cu...ML/198-199.asp
For those interested in reading.