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Re: 1970 Cuda 4 speed 60 ft problem
Posted: Wed Sep 05, 2012 2:04 pm
by raffaplymouth
Bruce69Camaro wrote:I'm suppose to tell you to sign up over at this site:
http://www.cuda-challenger.com/cc/index.php
I think they got word that your making us a spaghetti dinner and they want some.......actually I know one of the administrators and I was talking to him about you and your car.
ok, spaghetti for everyone!! i will look this website !!
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Fri Sep 07, 2012 3:24 pm
by raffaplymouth
Guys , i can ask a question of fuel in this thread? , i see a strange thing .. my fuel pressure normally is 7-8 psi. i have 2 holley black electric fuel pump , one for carb and one for nitrous ....at engine hot , at finish line ....carburetor fuel pressure drop to 4-5 psi and also nitrous fuel line ... this is normal ?? if wait 10 minute pressure return to 7 psi ...
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Fri Sep 07, 2012 3:47 pm
by John_Heard
Do you have a corresponding voltage drop as well?
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Tue Sep 11, 2012 3:54 pm
by raffaplymouth
i found problem on a Relais ... voltage was low , now is ok at 13.70 volts !! another question guys , i can use sometimes this car on the highway ?? or i can destroy the engine ?? valve spring ?? i have .720 lift ....
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Sat Nov 03, 2012 3:35 pm
by raffaplymouth
hey guys , how are you ?? i would be change the rear tires with 30" , now i have 28, with the same width 10" .. for you the 60 ft will be better ??
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Sun Nov 04, 2012 8:10 am
by Hitchcock
raffaplymouth wrote:hey guys , how are you ?? i would be change the rear tires with 30" , now i have 28, with the same width 10" .. for you the 60 ft will be better ??
Its hard to tell, it may help with tire spin off the line and calm the launch down. Only thing to do is try it and see if the car like it. Been at the track much lately?
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Wed Dec 26, 2012 5:00 am
by raffaplymouth
Some pictures ...
Uploaded with
ImageShack.us
Uploaded with
ImageShack.us
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Fri Dec 28, 2012 4:17 am
by wikd69
Beautiful shots, thanks for sharing those Raff :)
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Sun Dec 30, 2012 5:56 am
by raffaplymouth
Guys , im looking for fiberglass bumpers on ebay , and new rear tires , im undecide if increase the tire diameter from 28 to 29 ... and if change brand from MT to good year , i accept any advice ---
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Sun Dec 30, 2012 6:32 pm
by sc68z28
I ran the 28x 10.5W MT on a 10" wheel, then switched to 29x 12 GY on a 12" wide wheel.
My car (5 speed) the 29" GY hooked much better.
On a good track they (the GY) will dead hook, that can be a problem for a clutch car.
Some wheel speed (spin) is actually needed or things will break and/or you will be driving thru the clutch.
---Bill.
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Sun Jan 06, 2013 3:41 am
by raffaplymouth
sc68z28 wrote:I ran the 28x 10.5W MT on a 10" wheel, then switched to 29x 12 GY on a 12" wide wheel.
My car (5 speed) the 29" GY hooked much better.
On a good track they (the GY) will dead hook, that can be a problem for a clutch car.
Some wheel speed (spin) is actually needed or things will break and/or you will be driving thru the clutch.
---Bill.
Bill !! and for the gear ratio ? you will change ?? my cuda at finishline was at 6700 .... my rpm limit is 7200
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Sun Jan 06, 2013 9:22 pm
by sc68z28
4.56:1 should work well.
---Bill.
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Tue Jan 08, 2013 6:05 pm
by raffaplymouth
sc68z28 wrote:4.56:1 should work well.
---Bill.
Now i have 4.10 ...
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Wed Jan 09, 2013 10:52 pm
by sc68z28
Yes, 4.10 is good...
4.56 just a little better, but probably NOT a big deal.
---Bill.
Re: 1970 Cuda 4 speed 60 ft problem
Posted: Fri Jan 18, 2013 11:39 pm
by raffaplymouth
sc68z28 wrote:Yes, 4.10 is good...
4.56 just a little better, but probably NOT a big deal.
---Bill.
Guys ... First race is close to 2 month ...this year my goal is 9,90 .. I have a idea to change trasmission from manual to automatic 3 speed torqueflite .. What do u think ? Jerico transmission is too expensive ! ... I want my 60 ft lowered ... Now is 1,65 sec ...
