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Search found 939 matches

by gmrocket
Fri Nov 08, 2019 5:14 pm
Forum: Engine Tech
Topic: importance of and improving power curve
Replies: 95
Views: 10359

Re: importance of and improving power curve

CGT wrote:
Fri Nov 08, 2019 1:51 pm
gmrocket wrote:
Fri Nov 08, 2019 1:14 pm
I read on ST before nobody ever runs an Engine over that range,, it's stoopid
Does the person that said that suck at it? :lol:
Ohh ya...
by gmrocket
Fri Nov 08, 2019 1:14 pm
Forum: Engine Tech
Topic: importance of and improving power curve
Replies: 95
Views: 10359

Re: importance of and improving power curve

A pull where more power anywhere from 2500-8500+ rpm would have helped. Well since ST seems to be experiencing low traffic flow or low interest flow....I'll ask.. what changes need to be made to improve power over a 6000rpm wide range? :lol: :lol: Nitrous? :D That's even wider than an EMC engine,,I...
by gmrocket
Tue Nov 05, 2019 5:04 pm
Forum: Engine Tech
Topic: Senate Bill on Racing
Replies: 30
Views: 1649

Re: Senate Bill on Racing

.that's for clarifying where you've decide to take the forum. I decided to make sure Speed-Talk is the #1 Performance and Racing tech forum. Supporting the Industry is a big part of that. It's not political. It's business Would not this thread then better service that purpose if it was in the Gener...
by gmrocket
Thu Oct 31, 2019 6:18 am
Forum: Engine Tech
Topic: 305 head flow possibilities?
Replies: 52
Views: 2357

Re: 305 head flow possibilities?

Yep I BS some but my stuff does in fact run very right. The reason I run 305 heads is because they work for what I need them to do. I have friends that ran iron eagles on their small blocks and dart sportsmans and one buddy had a crate Blueprint 383 engine. Not any 305 heads on those but not enough...
by gmrocket
Wed Oct 30, 2019 5:50 am
Forum: Speier Racing Heads
Topic: Burr Finished 2970
Replies: 8
Views: 407

Re: Burr Finished 2970

If you hang loose I know someone doing a back to back dyno. I've done a back to back at the track. Fully 60grit, took it off and burr finished it in the trailer, put it back on. Ok, so what was the improvement on the back to back at the track? .18 and used AFR to tune it. Almost 2/10ths ,, that's i...
by gmrocket
Wed Oct 30, 2019 4:33 am
Forum: Engine Tech
Topic: 305 head flow possibilities?
Replies: 52
Views: 2357

Re: 305 head flow possibilities?

With a 55cc chamber you will get around 11 c/r.The first time I used 305 heads on a 350 I detonated it and hurt some pistons.I switched from 91 to av gas, no problems after that. A butt dyno is calibrated to like throttle response and low speed torque ,which is fun, but the vortecs are going to win...
by gmrocket
Wed Oct 30, 2019 4:15 am
Forum: Engine Tech
Topic: 305 head flow possibilities?
Replies: 52
Views: 2357

Re: 305 head flow possibilities?

F-BIRD'88 wrote:
Mon Oct 28, 2019 12:52 pm
Jeff has the best stories and analysis.
Just saying....:-)
Seems like he's a bs'r like you. He can't seem to get anything to run right unless it has 305 heads on it,, that's pretty funny
by gmrocket
Sun Oct 27, 2019 5:44 pm
Forum: Speier Racing Heads
Topic: Burr Finished 2970
Replies: 8
Views: 407

Re: Burr Finished 2970

What was the improvement? How much more power did it make? Just for giggles, did you see a reduction in BSFC? Did it require less jet area? TIA If you hang loose I know someone doing a back to back dyno. I've done a back to back at the track. Fully 60grit, took it off and burr finished it in the tr...
by gmrocket
Sun Oct 27, 2019 5:33 pm
Forum: Engine Tech
Topic: Senate Bill on Racing
Replies: 30
Views: 1649

Re: Senate Bill on Racing

isn't this the very definition of politics? No, this is a response to a real threat to the Performance Racing Industry. The OP did not make a political statement. He just made a PSA. Exactly...it wouldn't hurt to post this as a locked topic in all the forums on speedtalk,, the more eyeballs that se...
by gmrocket
Sun Oct 27, 2019 1:57 pm
Forum: Engine Tech
Topic: 305 head flow possibilities?
Replies: 52
Views: 2357

Re: 305 head flow possibilities?

We are sticking with the 305 turds for now. It's getting the 1.84"s because I have them. He needs to save his money for other things that will be costly, like a Ford rear , custom driveshaft, custom rad, probably an electric water pump, headers and exhaust, rims and tires. I also told him this thing...
by gmrocket
Thu Oct 24, 2019 4:24 pm
Forum: Engine Tech
Topic: 305 head flow possibilities?
Replies: 52
Views: 2357

Re: 305 head flow possibilities?

Does anyone have stock flowz #'s for the 1.72" and 1.84" 305 heads?

Want to know what I'm up against
by gmrocket
Thu Oct 24, 2019 4:22 pm
Forum: Engine Tech
Topic: 305 head flow possibilities?
Replies: 52
Views: 2357

Re: 305 head flow possibilities?

I ran the little 1.72- 1.50 305 heads on a 350" In a 3300lb 78 nova. The heads were off the 78 Nova 305 engine. Built this car for a buddy. He said he was getting some AFR heads but for now lets work the bugs out. I bowl ported the small valve heads and radiused backcut the valves. Smoothed the cha...
by gmrocket
Sun Oct 20, 2019 2:47 pm
Forum: Engine Tech
Topic: 305 head flow possibilities?
Replies: 52
Views: 2357

Re: 305 head flow possibilities?

Bill Chase wrote:
Sun Oct 20, 2019 7:40 am
113 corvette castings are cheap. Easier to port.
What's that?
by gmrocket
Wed Oct 16, 2019 6:48 am
Forum: General Tech
Topic: Engine Masters 2019
Replies: 149
Views: 14557

Re: Engine Masters 2019

I would most are working on EMC this weekend. I am mostly done. Which means I can’t get it any better. I am disappointed with the peak power and TQ but these are the most restricted rules in all the years I’ve competed. Yes such a shame to have extreme rule restrictions, makes me think of other mot...
by gmrocket
Mon Oct 14, 2019 5:59 pm
Forum: Engine Tech
Topic: L48 Project: Ported Chevy 450 heads vs. Bowtie vortec heads
Replies: 161
Views: 13172

Re: L48 Project: Ported Chevy 450 heads vs. Bowtie vortec heads

ok,, you asked for a comparison to see how you did. its not good. from 2500 thru 5700 you were down about 161 points compared to the olds if scored by EMC. the olds heads flowed 220/160. these same heads on an 11.4 :1 set up made 504/454 Ford 306 9 to 1 comp, thick head gaskets, 204, 204, .472, .47...