Not familiar with the pro max head.Ed on here has had a 522 in a car maybe a little heavier and I think it went some 5.60s but maybee he will see this post. Either way if prints tickets as it is race it and win and dont spend a bunch of time and money to go 2-3 tenths faster. Use the money for entries. A whole **** load of money has been won this year with ets. in the 6.00-6.50 range.
January 09, 2021, 02:04 PM
Novacaine
I was just thinking it would run 5.60"s thats all. I was close when its cooler and not when its 80 degrees
January 09, 2021, 02:06 PM
RacerVX54
quote:
Originally posted by Novacaine: Im thinking around 5800,
quote:
Originally posted by RacerVX54:
quote:
Originally posted by Novacaine: Its a brand new Ultimate convertor in mooresville nc, The rpm I think was around 6900.I run the 1/8 mile down here.
Whats the stall
Too tight IMO.
"Just Shut Up and Race"
Brian Martin Martin Racing 5.42 @127
January 09, 2021, 02:29 PM
Mike Rietow
quote:
Originally posted by Novacaine: I was just thinking it would run 5.60"s thats all. I was close when its cooler and not when its 80 degrees
Converter if spragless should go 6300-6400 on T Brake no high chip on a combo like this. It'll then drop back to 6200 on shift, & slip 6-7-8% at stripe. It'll 60 better this way because it'll multiply more torque below stall. It'll jump out of it's skin better at the hit with a little more stall & the engine will accelerate better throughout the entirety of the run, converter slipping a hair more. Be more consistent from cool to warm conditions too. It's definitely 400 rpms too tight now according to the slip math, and observed 5800 stall.
Tell em you need it 300 rpm looser, after verifying (double checking) your input of info, here.
January 09, 2021, 03:48 PM
markemark
Lots of “I think“ in your postings.
At minimum, I believe you need a playback tach and a logbook that has the run results and weather conditions recorded to help analyze what you have.
January 09, 2021, 05:55 PM
1320racer
quote:
Originally posted by SLICKSTER: Ed on here has had a 522 in a car maybe a little heavier and I think it went some 5.60s but maybee he will see this post.
5.50 is the best to date.
January 09, 2021, 07:30 PM
Novacaine
quote:
Originally posted by Mike Rietow:
quote:
Originally posted by Novacaine: I was just thinking it would run 5.60"s thats all. I was close when its cooler and not when its 80 degrees
The converter was belt for a 496 , 5800 stall. I ended up putting in the 555 and tried it. I have the shift light set at 7000 and it dont come on at the traps.
Converter if spragless should go 6300-6400 on T Brake no high chip on a combo like this. It'll then drop back to 6200 on shift, & slip 6-7-8% at stripe. It'll 60 better this way because it'll multiply more torque below stall. It'll jump out of it's skin better at the hit with a little more stall & the engine will accelerate better throughout the entirety of the run, converter slipping a hair more. Be more consistent from cool to warm conditions too. It's definitely 400 rpms too tight now according to the slip math, and observed 5800 stall.
Tell em you need it 300 rpm looser, after verifying (double checking) your input of info, here.
January 09, 2021, 07:39 PM
Mike Rietow
quote:
Originally posted by Novacaine:
quote:
Originally posted by Mike Rietow:
quote:
Originally posted by Novacaine: I was just thinking it would run 5.60"s thats all. I was close when its cooler and not when its 80 degrees
The converter was belt for a 496 , 5800 stall. I ended up putting in the 555 and tried it. I have the shift light set at 7000 and it dont come on at the traps.
Converter if spragless should go 6300-6400 on T Brake no high chip on a combo like this. It'll then drop back to 6200 on shift, & slip 6-7-8% at stripe. It'll 60 better this way because it'll multiply more torque below stall. It'll jump out of it's skin better at the hit with a little more stall & the engine will accelerate better throughout the entirety of the run, converter slipping a hair more. Be more consistent from cool to warm conditions too. It's definitely 400 rpms too tight now according to the slip math, and observed 5800 stall.
Tell em you need it 300 rpm looser, after verifying (double checking) your input of info, here.
They missed it, no big deal send it back. If the shift light doesn't come on, you don't think, you know it's too tight.
I said loosen it 300 rpm because 300 seems to be a number converter companies can nail perfect. If you say 400 rpm looser, it might see a third trip! Plus, for being tight the car seems to run alright for what it is (china heads). So I'd suggest to say 300 rpm's looser. You like the converter, we don't need anything experimental, just for this one to slip a hair more for the entirety of the run, while multiplying more torque out of the gate below stall! If it comes back 400 looser, good! 500 looser we don't want!
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
January 09, 2021, 08:16 PM
Novacaine
The Heads I got from Chris Strub and the converter has a sprag.
January 09, 2021, 09:28 PM
1800gb
One of my Nova's very simular in weight at 3150,full body,full interior,all windows functional.The 496 I run in it ,run almost the exact #'s you posted.Avr low to mid 5.80's with a best of 5.77...128-130..60ft at 116-118 mph..Spare 505 in same car,same 60ft at 120 mph high 5.60's.Same convertor for both motors..6200 flash..7000 shift..6200 fall back...7300-7400 trap.4.88 gear..30"in tire..
January 09, 2021, 10:51 PM
Mike Rietow
quote:
Originally posted by Novacaine: The Heads I got from Chris Strub and the converter has a sprag.
I have a PTC with a sprag, no biggie it's still too tight. Should cross 7200 @116 slipping 7-8 % 31 tire 488 gear.
Sprag converter make sure to be off the gas when it hooks, at the end of the burnout. They're fine just not quite as durable as spragless, in many cases. Be off the gas before the tire grabs on burnout.
Good luck
January 10, 2021, 08:40 AM
HS professor
You didn't mention the cam or head size. Your a bit off for a 555, my bet is cam and heads.....
We see an easy two tenth swing in good to bad air on gas.
Originally posted by HS professor: You didn't mention the cam or head size. Your a bit off for a 555, my bet is cam and heads.....
We see an easy two tenth swing in good to bad air on gas.
This message has been edited. Last edited by: Novacaine,
January 10, 2021, 08:45 AM
Novacaine
Would a 6600 6800 be to much?
quote:
Originally posted by Mike Rietow:
quote:
Originally posted by Novacaine:
quote:
Originally posted by Mike Rietow:
quote:
Originally posted by Novacaine: I was just thinking it would run 5.60"s thats all. I was close when its cooler and not when its 80 degrees
The converter was belt for a 496 , 5800 stall. I ended up putting in the 555 and tried it. I have the shift light set at 7000 and it dont come on at the traps.
Converter if spragless should go 6300-6400 on T Brake no high chip on a combo like this. It'll then drop back to 6200 on shift, & slip 6-7-8% at stripe. It'll 60 better this way because it'll multiply more torque below stall. It'll jump out of it's skin better at the hit with a little more stall & the engine will accelerate better throughout the entirety of the run, converter slipping a hair more. Be more consistent from cool to warm conditions too. It's definitely 400 rpms too tight now according to the slip math, and observed 5800 stall.
Tell em you need it 300 rpm looser, after verifying (double checking) your input of info, here.
They missed it, no big deal send it back. If the shift light doesn't come on, you don't think, you know it's too tight.
I said loosen it 300 rpm because 300 seems to be a number converter companies can nail perfect. If you say 400 rpm looser, it might see a third trip! Plus, for being tight the car seems to run alright for what it is (china heads). So I'd suggest to say 300 rpm's looser. You like the converter, we don't need anything experimental, just for this one to slip a hair more for the entirety of the run, while multiplying more torque out of the gate below stall! If it comes back 400 looser, good! 500 looser we don't want!
Good luck.
January 10, 2021, 09:04 AM
RacerVX54
quote:
Originally posted by Novacaine: So you are saying I need a stall of 6200 to 6400?
100%
"Just Shut Up and Race"
Brian Martin Martin Racing 5.42 @127
January 10, 2021, 09:20 AM
Mike Rietow
[QUOTE]Originally posted by Novacaine: I got cam and heads from Chris Straub. cam is 765/745, 275/285 @ 50. Promaxx heads 320 cc flows 389 . I run E85 these are the heads https://promaxxperformance.com/product/maxx-317-bbc/
That's looks to be a good combination of parts, together.
You'll reach your goal, start looking around at 30" slicks or even radial slicks, wide and short. Short will give you more effective gear 1/8. And Radial slicks are FAST FYI.
Looking at the heads and cam, I think we're dead on. The converter needs to be 6200 stall.
January 10, 2021, 09:25 AM
Novacaine
So If I run taller tire I need to up the gear.Say 32 tall slick and go from a from 4.88 to 538 gear? I have a 18195 hoosier on it now.
quote:
Originally posted by Mike Rietow: [QUOTE]Originally posted by Novacaine: I got cam and heads from Chris Straub. cam is 765/745, 275/285 @ 50. Promaxx heads 320 cc flows 389 . I run E85 these are the heads https://promaxxperformance.com/product/maxx-317-bbc/
That's looks to be a good combination of parts, together.
You'll reach your goal, start looking around at 30" slicks or even radial slicks, wide and short. Short will give you more effective gear 1/8.
Looking at the heads and cam, I think we're dead on. The converter needs to be 6200 stall.
January 10, 2021, 09:30 AM
Mike Rietow
quote:
Originally posted by Novacaine: So If I run taller tire I need to up the gear.Say 32 tall slick and go from a from 4.88 to 538 gear? I have a 18195 hoosier on it now.
quote:
Originally posted by Mike Rietow: [QUOTE]Originally posted by Novacaine: I got cam and heads from Chris Straub. cam is 765/745, 275/285 @ 50. Promaxx heads 320 cc flows 389 . I run E85 these are the heads https://promaxxperformance.com/product/maxx-317-bbc/
That's looks to be a good combination of parts, together.
You'll reach your goal, start looking around at 30" slicks or even radial slicks, wide and short. Short will give you more effective gear 1/8.
Looking at the heads and cam, I think we're dead on. The converter needs to be 6200 stall.
I'd put shorter tires on it, if it were mine. Yeah, if you go taller, you slow the car down if you don't also change the gear.
Ya don't need a big tire. My 69 Nova has been 1.27 60 on a 10 x 28 bias @ 3200 with a n/a sbc 2400 da.