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-   -   Update E-F/SA Bird Build... (https://classracer.com/classforum/showthread.php?t=50212)

brent flynn 06-26-2014 05:56 PM

Re: Update E-F/SA Bird Build...
 
thanks Bob...yeah, im planning on it, at this point... Finishing up the 4.88s tonight...and just got to put weight in( about 50#) and get headrest in,..also, put the new belts in,and it should pass tech, just fine... testing next Wed, supposed to rain this weekend

Mark Yacavone 06-27-2014 08:38 PM

Re: Update E-F/SA Bird Build...
 
Quote:

Originally Posted by brent flynn (Post 436162)
thanks bob...yeah, im planning on it, at this point... Finishing up the 4.88s tonight...and just got to put weight in( about 50#) and get headrest in,..also, put the new belts in,and it should pass tech, just fine... Testing next wed, supposed to rain this weekend

4.88's ??

brent flynn 06-27-2014 11:33 PM

Re: Update E-F/SA Bird Build...
 
Why not? It should hit the traps about 6500-6600... it was only trapping at 5900 on a 11.59/115 pass with 4.30 ... i have 94'' radials and am at 3635 lbs in 'F' ... Im running a 251/256* Comp cam, in @ 105*, ground on 106 with 108LSA... if its way too much , i will drop back to 4.56s. The ATi converter flashed 4800 with the 4.30 .. it may tighten up slightly with the 4.88...

HandOverFist 06-27-2014 11:50 PM

Re: Update E-F/SA Bird Build...
 
Sounds like it will be fine...looking forward to the results!

brent flynn 06-27-2014 11:56 PM

Re: Update E-F/SA Bird Build...
 
yea, me too...but my shifter broke... was gettin ready to seat the gears in, and the lever fell off in my hand...

hurst 1/4 stick...gotta get it fixed , so i can test on Wednesday...hoping to go to Columbus 3rd week of July...

https://fbcdn-sphotos-b-a.akamaihd.n...09174896_n.jpg

tommy d 06-28-2014 08:48 AM

Re: Update E-F/SA Bird Build...
 
That's the best place to break something. [in the garage] The dust and rocks aren't too friendly to lay on at Muncie.;)

Mark Yacavone 06-28-2014 04:59 PM

Re: Update E-F/SA Bird Build...
 
Quote:

Originally Posted by brent flynn (Post 436300)
Why not? It should hit the traps about 6500-6600... it was only trapping at 5900 on a 11.59/115 pass with 4.30 ... i have 94'' radials and am at 3635 lbs in 'F' ... Im running a 251/256* Comp cam, in @ 105*, ground on 106 with 108LSA... if its way too much , i will drop back to 4.56s. The ATi converter flashed 4800 with the 4.30 .. it may tighten up slightly with the 4.88...

@ 6600 , you'll lose a MPH..which is what's going to happen, along with no 60' or 1/4 mi. et reduction.

Converter's too loose...Tighten converter, put good springs on it, keep the 4.33's

brent flynn 06-29-2014 03:46 AM

Re: Update E-F/SA Bird Build...
 
well...i guess i will find out Wednesday...hehe I figured it would pick up, as i felt like the 4.30's were a little tall , for the converter... Im used to 455's, they like 5700-5800 trap rpm , with 4200 flash... i have a hard time believing that this deal willl nose over at 6200-6400... I figured 6500 or so, would be ok... I have a 4200 ATi, which i thought would be too tight, behind this engine....i thought 4.56 gears wouldnt be much of a jump... all i can say, is , i hope you're wrong... Will update Wed night, if weather is good for racing...

Todd Hoven 06-29-2014 07:42 AM

Re: Update E-F/SA Bird Build...
 
Sometimes you have to go out and try different things. Nothing wrong with what Brent is doing. Flog that thing and figure out what it likes. At F weight in that bad summer Midwest air, it may not be as bad as you think.
This is what building and racing a class car is all about. Testing and finding your way. Good luck Brent.

Dave Ribeiro 06-29-2014 09:07 AM

Re: Update E-F/SA Bird Build...
 
Todd, is dead-on about the Car telling you what it likes ? Keep testing & keep good notes , every- car is different... Watch the spring pressure , that's the key secret ? Good Luck & keep us updated ..


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