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Search found 182 matches

by JodyB
Sat May 30, 2020 1:56 am
Forum: Engine Tech
Topic: Chassis dyno..tranny
Replies: 7
Views: 485

Re: Chassis dyno..tranny

Testing on a 248 Dynojet, the most critical part is to have matched rear tires. Knuckle dragging dirt-track guys show up with 3inches difference in diameter after being educated beforehand on the outcome. Locked differential , 3inches difference in tire diameter , and it makes a low rwhp number. No ...
by JodyB
Sat Apr 11, 2020 11:31 pm
Forum: Engine Tech
Topic: Stroking the 305 SBC
Replies: 13
Views: 808

Re: Stroking the 305 SBC

I am the pot callin the kettle black tho. I got a pile of 305's that will die by turbo😁 I'll learn then build a good motor
by JodyB
Sat Apr 11, 2020 11:22 pm
Forum: Engine Tech
Topic: Stroking the 305 SBC
Replies: 13
Views: 808

Re: Stroking the 305 SBC

Nowdays a one piece rear main seal rebuildable 350 goes for 300 bucks. No reason to build a 305.
by JodyB
Wed Apr 08, 2020 11:58 pm
Forum: Engine Tech
Topic: Mismatched 289 combo
Replies: 32
Views: 1651

Re: Mismatched 289 combo

A 150hp plate for 500ish lets him keep the tall gears, exhaust manifolds, pooch converter, and all. As a plus, tje low cr 289 may not even need the timing reatarded on a 150.
by JodyB
Wed Apr 08, 2020 11:44 pm
Forum: Engine Tech
Topic: Mismatched 289 combo
Replies: 32
Views: 1651

Re: Mismatched 289 combo

You got handed the worst combo of little motor, no compression, no converter, no gear. Leave it alone. Spray it with a cheap 150hp plate kit. Dollar per ET it will be the best $ spent by far
by JodyB
Tue Mar 31, 2020 11:32 pm
Forum: Engine Tech
Topic: Bigger intake smaller exhaust valves
Replies: 60
Views: 3576

Re: Bigger intake smaller exhaust valves

So...., instead of sinking all this effort into a 302, why not just build an underperforming 350 to accomplish the same torqueless performance and high rpm. Low C.R. and huge solid cam. Done. Lol
by JodyB
Sun Dec 01, 2019 9:39 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 26
Views: 1749

Re: Hemi vs Chevy wager...

Keep it simple. Add a On3 94mm or 107mm turbo for $1000-1200. Turn boost controller to 11
by JodyB
Fri Nov 15, 2019 12:29 am
Forum: Engine Tech
Topic: "Hedifolds" the good, bad, and ugly?
Replies: 13
Views: 882

Re: "Hedifolds" the good, bad, and ugly?

Economics. That is all. Will the head warp on the ex side? Yes. Within warranty? Prolly not.
by JodyB
Sun Oct 27, 2019 1:01 am
Forum: Engine Tech
Topic: Bigger lifter bores gen 1 sbc
Replies: 7
Views: 1303

Re: Bigger lifter bores gen 1 sbc

What is the application? Max rpm and what valvespring pressures do you intend to use? Big lifter bores are not low hanging fruit in hp per $ with SFT until you are pushing the envelope a bit.
by JodyB
Wed Oct 23, 2019 10:54 pm
Forum: Engine Tech
Topic: Timing tape- printable....
Replies: 13
Views: 969

Re: Timing tape- printable....

That is...a proven positive stop referenced tdc mark.
by JodyB
Wed Oct 23, 2019 10:40 pm
Forum: Engine Tech
Topic: Timing tape- printable....
Replies: 13
Views: 969

Re: Timing tape- printable....

I do understand this is the right way to do it. I am curious tho, how many folks have seen errors with a decent dial-back timing light and tdc mark.
by JodyB
Fri Oct 11, 2019 12:15 am
Forum: Engine Tech
Topic: Coating Air cooled pistons
Replies: 42
Views: 2259

Re: Coating Air cooled pistons

To the original poster: What approximate wheel hp range are you shooting for with the air cooled suzuki?
by JodyB
Sun Oct 06, 2019 6:31 pm
Forum: Engine Tech
Topic: Coating Air cooled pistons
Replies: 42
Views: 2259

Re: Coating Air cooled pistons

Back to the original poster's GS1100. Being air cooled, piston to bore clearance at your average riding or racing conditions/temp will be #1 priority for making hp and having the mill live. Magic coatings, oil squirters, water injection are distant 2nds if you have sufficient octane.
by JodyB
Fri Oct 04, 2019 1:00 am
Forum: Engine Tech
Topic: Coating Air cooled pistons
Replies: 42
Views: 2259

Re: Coating Air cooled pistons

Saw the idea years ago. A corvair land speed racer was injecting water into the cooling fan to help keep head temps under control. Why isn't this captain obvious idea more widespread with aircooled guys?