Don Terrill’s Speed-Talk

Dave Koehler wrote: ↑Tue Jan 14, 2020 3:09 pm

lefty o wrote: ↑Tue Jan 14, 2020 2:04 pm

Dave Koehler wrote: ↑Tue Jan 14, 2020 1:20 pm
You are saying that the nitrous is more spiky (a word?), detonation sensitive or creating higher pressure than needed.
I was saying for the cylinder pressure required to hit X HP all methods get there in the end.
Like I said it is a bit of a quibble.

maybe so, but we are talking about extreme budget parts trying to make 1400hp, its going to take 7 or 800 shot of juice to get there. with cheap parts, may as well light off dynamite in those cylinders.

No worries. It's not going to happen. It's a quantum leap from a 900 HP magazine what if article to real world 1400 HP.
I did not address the quibble from a budget or HP goal standpoint. Just the wording in general.

raynorshine wrote: ↑Tue Jan 14, 2020 1:48 pm

rustbucket79 wrote: ↑Mon Jan 13, 2020 10:35 pm

raynorshine wrote: ↑Mon Jan 13, 2020 9:43 pm

yes! x2

-i've only scattered one engine...and i felt like a total azz

Where do you race in British Columbia Raynor?

been awhile...Northern Lites, Ft St John BC

raynorshine wrote: ↑Tue Jan 14, 2020 3:05 pm -this kinda of non-sense...dribble...head in the clouds(or possibly elsewhere)...is AKA "False Economy"

ptuomov wrote: ↑Wed Jan 15, 2020 7:52 am Is your own time not counted in the cost estimate? Because that can make big difference to the ultimate cost.

Dave Koehler wrote: ↑Wed Jan 15, 2020 8:15 am

ptuomov wrote: ↑Wed Jan 15, 2020 7:52 am Is your own time not counted in the cost estimate? Because that can make big difference to the ultimate cost.

I never got the IRS to believe in personal time being worth anything.

Orr89rocz wrote: ↑Wed Jan 15, 2020 10:23 am I would try the filled stock block with stock 427 steel crank but put in some kind of H beam steel rod, good flat top piston for boost, which idk who has that can handle 1400. No need for low comp. 9-10:1 is great with e85

ptuomov wrote: ↑Wed Jan 15, 2020 11:02 am

Orr89rocz wrote: ↑Wed Jan 15, 2020 10:23 am I would try the filled stock block with stock 427 steel crank but put in some kind of H beam steel rod, good flat top piston for boost, which idk who has that can handle 1400. No need for low comp. 9-10:1 is great with e85

I think that if one is at all pushing the limits of the block, pistons, and the crank, one can run higher average cylinder pressures with lower compression while keeping the peak cylinder pressure constant. I'm not just talking about knock here.

Orr89rocz wrote: ↑Wed Jan 15, 2020 11:36 am

ptuomov wrote: ↑Wed Jan 15, 2020 11:02 am

Orr89rocz wrote: ↑Wed Jan 15, 2020 10:23 am I would try the filled stock block with stock 427 steel crank but put in some kind of H beam steel rod, good flat top piston for boost, which idk who has that can handle 1400. No need for low comp. 9-10:1 is great with e85

I think that if one is at all pushing the limits of the block, pistons, and the crank, one can run higher average cylinder pressures with lower compression while keeping the peak cylinder pressure constant. I'm not just talking about knock here.

Maybe but 6.5 to 1 is absurdly low in my opinion. The tune window is wider and safer on lower comp generally but e85 is very tolerant

Orr89rocz wrote: ↑Wed Jan 15, 2020 12:52 pm Right. To me 9:1 is low compression. 9:1 is pump gas boost. E85 can do 10:1 easily. We have e85 guys over 10:1 on 20+ psi making near if not over 2000 flywheel

I like the challenge. I havent seen a factory bbc block pushed. But i assume they have to be pretty decent with good machine work and caps/studs.

I was able to make 1400 hp flywheel on a shp block sbc with compstar internals. 9:1. On 110 gas. It held but wasnt happy. Far cry from 6g money but i’d be curious a 454 or so cube factory bbc with china h beam rod like eagle scat or compstar and a good piston couldnt do the same. Lot more material in the block and crank, more cubes which should lower average cyl pressure