I don't know

[Ed Fernandez]

Originally Posted by bill dedman

Puttin' the engine in the new Bracket car next week (turbocharged slant six) so my excitement level is pretty high for someone whose age predates dirt...

It may actually see action sometime this year!!! But, maybe not... we'll see.

Thanks for askin'!!!!

Good luck Bill.

[bill dedman]

Originally Posted by Ed Fernandez

Good luck Bill.

Thanks, Ed!!!!

[Dennis P Chapman]

Good luck Bill turbos are fun.

[bill dedman]

Thanks, Dennis. This is our first foray into boosted engines, and so, foreign territory for us (I have a partner in this mess.) We chose a slant 6 because of its unusual strength and rigidity, plus its crank is a forged one and features main bearings the same diameter as the 426 Hemi's. Add to that, the fact that it was originally intended to be an aluminum engine, so the design parameters were such that the cast iron version had the same oversize main bearing webs and thick deck dimensions, it's an engine that can withstand a LOT of boost without trauma (hopefully.) We intend to find out where its Achilles heel is, if it has one, by running boost levels that have not heretofore been researched (to our knowledge) on this engine.

Gonna be fun... Maybe...

[Dennis P Chapman]

Bill
What body are you putting it in. The turbos have been good to me over the years.

[bill dedman]

Originally Posted by Dennis P Chapman

Bill
What body are you putting it in. The turbos have been good to me over the years.

Dennis
It's going into a somewhat lightened (2,500 pounds?) 1964 Valiant 4-door sedan. It is in no way, a serious race car, and intended only as a test-bed for two old geezers (I'm 72 and my racing partner, Fred is 73!) having a last gasp before we take the dirt nap...

But, we wanted to show these Buick GN guys we hang out with, that the "Stage" blocks they use are not the ONLY way to go...

If we were interested in winning Bracket races, we realize that a small, turbo'd engine is not the most consistent thing in the world, so we'd build something different...
Just two old guys, tryin' to have some fun...

++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++


Art, if we can make 600 horsepower with 35 pounds of boost, we'll be very excited! There are some guys running these (225 cu. in.) motors with 28 pounds of boost, making a little over 500, currently. We're not greedy... just curious.

Lookin' for that Achilles heel; not wanting to find it.... LOL!

[Dennis P Chapman]

Originally Posted by bill dedman

Dennis
It's going into a somewhat lightened (2,500 pounds?) 1964 Valiant 4-door sedan. It is in no way, a serious race car, and intended only as a test-bed for two old geezers (I'm 72 and my racing partner, Fred is 73!) having a last gasp before we take the dirt nap...

But, we wanted to show these Buick GN guys we hang out with, that the "Stage" blocks they use are not the ONLY way to go...

If we were interested in winning Bracket races, we realize that a small, turbo'd engine is not the most consistent thing in the world, so we'd build something different...
Just two old guys, tryin' to have some fun...

++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++


Art, if we can make 600 horsepower with 35 pounds of boost, we'll be very excited! There are some guys running these (225 cu. in.) motors with 28 pounds of boost, making a little over 500, currently. We're not greedy... just curious.

Lookin' for that Achilles heel; not wanting to find it.... LOL!

Well two guys have some fun with it keep me post. Sounds like a fun project good luck again.

[art leong]

Originally Posted by bill dedman

Dennis
It's going into a somewhat lightened (2,500 pounds?) 1964 Valiant 4-door sedan. It is in no way, a serious race car, and intended only as a test-bed for two old geezers (I'm 72 and my racing partner, Fred is 73!) having a last gasp before we take the dirt nap...

But, we wanted to show these Buick GN guys we hang out with, that the "Stage" blocks they use are not the ONLY way to go...

If we were interested in winning Bracket races, we realize that a small, turbo'd engine is not the most consistent thing in the world, so we'd build something different...
Just two old guys, tryin' to have some fun...

++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++


Art, if we can make 600 horsepower with 35 pounds of boost, we'll be very excited! There are some guys running these (225 cu. in.) motors with 28 pounds of boost, making a little over 500, currently. We're not greedy... just curious.

Lookin' for that Achilles heel; not wanting to find it.... LOL!

Just be careful 1/2 pound or less of boost is the difference between a good run and a lot of scrap aluminum.

[bill dedman]

duplicate post

[art leong]

Originally Posted by bill dedman

Thanks, Dennis. This is our first foray into boosted engines, and so, foreign territory for us (I have a partner in this mess.) We chose a slant 6 because of its unusual strength and rigidity, plus its crank is a forged one and features main bearings the same diameter as the 426 Hemi's. Add to that, the fact that it was originally intended to be an aluminum engine, so the design parameters were such that the cast iron version had the same oversize main bearing webs and thick deck dimensions, it's an engine that can withstand a LOT of boost without trauma (hopefully.) We intend to find out where its Achilles heel is, if it has one, by running boost levels that have not heretofore been researched (to our knowledge) on this engine.

Gonna be fun... Maybe...

Bill they main problems aren't from the bottom. They are from to much heat in the chambers. I have a friend that has had some block problems. But he makes 1400 HP from 150 cubes.