Super Ram users please take a look....
Thread Starter
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Super Ram users please take a look....
Guys,
I have been battling this problem with my low end for about 2 weeks now. Ever since someing from the track and getting less than satisfactory performance. Much of the problem along with solutions is listed in the following post.
If you could be as kind to take a look and see if any of you guys might be able to diagnose the problem, I would be VERY grateful. The guys on the other post have exhausted themselves trying to help. I am thankful to them for their help and am hoping if I get this topic a bit more publicity it will not only possibly cure my problem, but also help others that may be or will have the same problem as I do.
Thanks for looking.....Please idea in the other post...That way everything will remain in the same post for others to view.
Thanks again. Here is the post:
http://forums.corvetteforum.com/zerothread?id=283240
I have been battling this problem with my low end for about 2 weeks now. Ever since someing from the track and getting less than satisfactory performance. Much of the problem along with solutions is listed in the following post.
If you could be as kind to take a look and see if any of you guys might be able to diagnose the problem, I would be VERY grateful. The guys on the other post have exhausted themselves trying to help. I am thankful to them for their help and am hoping if I get this topic a bit more publicity it will not only possibly cure my problem, but also help others that may be or will have the same problem as I do.
Thanks for looking.....Please idea in the other post...That way everything will remain in the same post for others to view.
Thanks again. Here is the post:
http://forums.corvetteforum.com/zerothread?id=283240
Safety Car
Joined: Mar 2000
Posts: 3,620
Likes: 2
From: Hillsboro OR
Re: Super Ram users please take a look.... (ski_dwn_it)
Based on these facts:
AFR 190 heads ->upper rpm
219 cam -> upper rpm
350-> smaller than my engine and power in mine really takes off above 3000 with similar heads and cam means your power curve will be similar
Car really takes off above 3000
TC is 1300
You need a higher stall converter to get the engine to the higher power band. 2800 - 3000 rpm is what you need. You might benefit from more spark advance in the lower rpms.
I also noticed your getting 155 psi in the cylinders from a pressure test. I think the pressure numbers should be around 200 plus if you have 11.5:1 compression. It could be that you have lower compression than you think. Cam timing will affect the pressure as well. 155 psi with a stock cam is about 8:1. I don't know what it should be with the 219 cam but not that far off.
The trap speed of 103 and the 246 gps from the maf indicate that your around 300 hp at the crank. I think 246 gps should be about 320.
AFR 190 heads ->upper rpm
219 cam -> upper rpm
350-> smaller than my engine and power in mine really takes off above 3000 with similar heads and cam means your power curve will be similar
Car really takes off above 3000
TC is 1300
You need a higher stall converter to get the engine to the higher power band. 2800 - 3000 rpm is what you need. You might benefit from more spark advance in the lower rpms.
I also noticed your getting 155 psi in the cylinders from a pressure test. I think the pressure numbers should be around 200 plus if you have 11.5:1 compression. It could be that you have lower compression than you think. Cam timing will affect the pressure as well. 155 psi with a stock cam is about 8:1. I don't know what it should be with the 219 cam but not that far off.
The trap speed of 103 and the 246 gps from the maf indicate that your around 300 hp at the crank. I think 246 gps should be about 320.
Instructor
Joined: Jul 2001
Posts: 130
Likes: 0
From: Torrance CA
Re: Super Ram users please take a look.... (ski_dwn_it)
Yes, the TC clutch can become mechanically stuck. The lockup solenoid is in the transmission, which moves a shaft inside the transmission input shaft. Moving this inner shaft back and forth locks and unlocks the clutch in the torque converter. It is possible to get this misaligned when sticking the TC on the front of the tranny.
One time I was assembling motor and tranny outside the car. I put the torque converter on, bolted the tranny to engine, bolted flexplate to tranny, and noticed it was REAL hard to turn the motor over by hand. Installed the assembly in the car anyway. Once I had the starter hooked up and cranked the motor, a loud metallic CLANG came from under the car - and the motor spun freely after that. I concluded I must have put the transmission input shaft in a bind that locked the clutch.
I think the only way to test for sure is to unbolt the flexplate from the TC. The TC should rotate freely.
Good luck
One time I was assembling motor and tranny outside the car. I put the torque converter on, bolted the tranny to engine, bolted flexplate to tranny, and noticed it was REAL hard to turn the motor over by hand. Installed the assembly in the car anyway. Once I had the starter hooked up and cranked the motor, a loud metallic CLANG came from under the car - and the motor spun freely after that. I concluded I must have put the transmission input shaft in a bind that locked the clutch.
I think the only way to test for sure is to unbolt the flexplate from the TC. The TC should rotate freely.
Good luck
Thread Starter
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Re: Super Ram users please take a look.... (Kevin 88)
Thanks guys.
As it turns out I calculated my CR wrong at that time. Its right around were stock should be.
I will try spinning the TC before I install the new one. Should be interesting to find what it does.
As it turns out I calculated my CR wrong at that time. Its right around were stock should be.
I will try spinning the TC before I install the new one. Should be interesting to find what it does.
