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I don't believe there will be any performance advantage at all....either ET or mph. It's simply easier on the engine at WOT to take away timing...
Right now the proposed plan....after I get the fuel balanced, to set lead @ 33 with shift @ 7500 and pull 3 deg out @ 7600 with a 7950 trap rpm....
Completely agreed...
Made only 1 pass in 2020...hung a valve because of a tight guide, but the timing plug witness stripe was right on the money on 7 @32 lead... but...
Do not have an AFR gauge. The hat is BAU tall 3 x 5" blades
Last engine I ran I had 35 deg lead and when I tore it down the splayed mains were hammered. This engine I'm going to back down the lead to 32....
You need an 8. What does your pump flow? What kind of fuel pressure do you want?
I run an alky sbc, all iron, dry, 10-71 blown dragster as follows: 10-71, cam = .629/,669 280/290 @ .050, 112 lobe sep, 10.5 static CR, 180...
I agree with him as well...I'm changing from a 357 to a 422, so I'm going to start off stupid fat...then nudge it leaner a bit at a time. No...
Not a chance 4 gal. will do. I run an 10-71 sbc and ran into out-of-fuel with a 4.5 gal tank at 1000'. fab'ing up a front mount 8 gal tank for...
Good to know. I'm using a 15gpm pump with loop, so fuel supply isn't an issue, but the system should be flowed I agree
putting together 422 CI - 4.165 bore/3.875 stroke 10-71 blown sbc alcohol dragster. Boost = +/- 25 lbs. What would be a relatively safe static CR....
Is .250 enough distance between piston deck and first ring groove for blown sbc 25lb boost application? 355CI, 4.030 bore 3.48 stroke. Thank ITA
My question was answered by the racecar1517 post
Ooops...sorry folks...I didn't see the post just below mine...that answers my question completely
Seeking some advice on timing retard. Running a 355 sbc blown dragster on alky. Performance is mid 6.80's @ 195 @ 7900 rpm through the traps....
You run alcohol or gas?....Alky runs way cooler. I run a steel head/steel filled-block 10-71 blown 6:80's 355 sbc and never had a heat issue....
Running @ 355 10-71 blown sbc in a RED. 10:3 static compression runs 6:80's with 27 psi boost on alky. Block is GM high nickel O-ringed with...
Thanks!....I'd be quite happy with 6:80's when we get 'er dialed
I have a 355 sbc in a 255" RED. Last year the car went 7.01 @ 185, 1.00 60' best with an unstripped 6-71@ 25% OD, hat injection-only - bird...
