Bonneville Landspeed Racing - Let's Try a Thing.

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If you want to keep some semblance of street drivability and get the most from it on the salt, run it up to about 11.5:1 and when driving on the street just kill 2-3 degrees of timing out of it when it gets hot. Run full timing on the salt and keep the temps in check.
 
TT5.9mag said:
The percentage of gain from compression isn’t a direct correlation like some people like to make it out to be. On a 300hp small block Chevy yea you might see 3,4,5 percent as you go up in compression but at the 600-700hp level backing OFF on the compression, especially when you have the heads and camshaft to go with it, will really hurt power.
Click to expand...
So..... Crew Chief.

Based on the components we have so far, what do you recommend? Gas, E85 or alcohol? What compression? I am looking for 200mph - for now. Math says an honest 600-650hp should get me there
 
TT5.9mag said:
If you want to keep some semblance of street drivability and get the most from it on the salt, run it up to about 11.5:1 and when driving on the street just kill 2-3 degrees of timing out of it when it gets hot. Run full timing on the salt and keep the temps in check.
Click to expand...
I do still have the 383 that could go back in for street driving to save the race motor if making sure we meet the goals removes it from street driving
 
71GSSDemon said:
So..... Crew Chief.

Based on the components we have so far, what do you recommend? Gas, E85 or alcohol? What compression? I am looking for 200mph - for now. Math says an honest 600-650hp should get me there
Click to expand...
Are you going to put the car in a wind tunnel so we have drag coefficient numbers?
:rofl:
Revert back to what I said early in the thread. If you need 650hp to meet your goal, build 750. I would run lots of compression (14:1 ish) and E85. That’s my recommendation. It’s much cheaper than any gas, way cheaper than race gas, and available pretty much everywhere now. If you don’t want to run the car in a fuel class for a record then we run it on 118 in a gas class. For street driving, pull the race motor out.
 
See this is why you are crew chief.

It makes sense what you have to say. Honestly, I would love to run down to A2 for a few hours. Not sure I can pull that off, but see what surgery does for me. There are people I would like to visit down there and it could be rolled into a whole trip, but I need to focus on getting out to the salt moreso
 
TT5.9mag said:
Are you going to put the car in a wind tunnel so we have drag coefficient numbers?
:rofl:
Revert back to what I said early in the thread. If you need 650hp to meet your goal, build 750. I would run lots of compression (14:1 ish) and E85. That’s my recommendation. It’s much cheaper than any gas, way cheaper than race gas, and available pretty much everywhere now. If you don’t want to run the car in a fuel class for a record then we run it on 118 in a gas class. For street driving, pull the race motor out.
Click to expand...
So, the CoD numbers I am estimating are what Chrysler used during Nascar and their testing. I have their testing documents. (I think I sent them to you a while back) Also, I am able to do more. Shaved door handles, shaved drip rails, spoiler heights, ground clearance, etc. And I could put the nose on, the Pro Mod rear spoiler, can use flush side windows, etc.
 
Just remember the math is just the math. Rarely do people say “we need less power to hit our goal”. Power management is much easier than re engineering the engine package when it doesn’t go 200.
 
TT5.9mag said:
Just remember the math is just the math. Rarely do people say “we need less power to hit our goal”. Power management is much easier than re engineering the engine package when it doesn’t go 200.
Click to expand...
Agreed.

I wonder what kind of power I can make with a 14:1 470 with the 260/270 0.685" Cam, 440-1 heads, Indy intake with a 1050???

Andy F had a build of:

470 11.8:1 (IIRC)
264/268 .740"
TF 270 Heads
Wet Vac system
950 dominator
780hp
 
71GSSDemon said:
Agreed.

I wonder what kind of power I can make with a 14:1 470 with the 260/270 0.685" Cam, 440-1 heads, Indy intake with a 1050???
Click to expand...
Depending on level of porting on the heads/intake and the fuel used, I’d say you’re in the 675-750 range.
 

71GSSDemon said:
Agreed.

I wonder what kind of power I can make with a 14:1 470 with the 260/270 0.685" Cam, 440-1 heads, Indy intake with a 1050???

Andy F had a build of:

470 11.8:1 (IIRC)
264/268 .740"
TF 270 Heads
Wet Vac system
950 dominator
780hp
Click to expand...
Do you have a link to a thread on that engine or magazine article published somewhere?
 
That’s a nice piece. I’d say it punches above its weight class because of the Wilson ported manifold and the wet/dry sump setup with the vacuum pump. Definitely a cool package.
 
Moparpuller said:
I wasn’t able to get any help on the oil we talked about. I would be willing to sponsor some oil myself to help out with the cause if you want to run the Cenpeco we talked about
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Thanks Grant! Any and all help is welcome
 
MRA results from last night.

Findings:No significant arterial abnormality is demonstrated involving thebrachiocephalic, right subclavian, axillary and proximal brachial arteries,as well as the imaged portions of the right carotid and vertebral arteries.There is marked compression of the right subclavian vein beneath theclavicle resulting in short segment occlusion with the arm elevated.
 
71GSSDemon said:
MRA results from last night.

Findings:No significant arterial abnormality is demonstrated involving thebrachiocephalic, right subclavian, axillary and proximal brachial arteries,as well as the imaged portions of the right carotid and vertebral arteries.There is marked compression of the right subclavian vein beneath theclavicle resulting in short segment occlusion with the arm elevated.
Click to expand...
Layman’s terms please
 
Well we have a win. Changing the front master cylinder fixed the brakes issue. Athough I don't need front brakes, we have them now!!! Next...
 
71GSSDemon said:
Well we have a win. Changing the front master cylinder fixed the brakes issue. Athough I don't need front brakes, we have them now!!! Next...
Click to expand...
like insurance, it's better to have them and not need them then to not have them and need them. Oops! that sounds like an insurance commercial.
 
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