TSP Level 2A-R Prototype Specs and testing (Larry's motor)

Jim - it may be minor, but what do you feel the difference would be between the motor as built or one done with a more standard / slightly higher CC head and the smaller dish pistons ?

also, what was the oil pressure like through the rpm range and at idle ?

 

Alan,

I don't know that it would make that much difference where you put the volume, if anything I guess more in the chamber might make a few more ponies.

On the oil pressure, here is another sheet that shows pressures and temps. I also noticed the VE number on this motor, that's about as good as it gets for a NA engine.

Minimum oil pressure I noted was 32-35 psi, with 180* oil at 750-800 rpm



JW

 

This is awesome jim ,you are the man .. And larry i look forward to seeing that motor at the cruise nights ! :3gears:

 

Jim,
I will be using a RS600 trans with a moser 12 bolt with 4:11 gears. The trans gears are 2.80/1.99/1.33/1.0/.67. I would love the roller version of the 290H due to the numbers that it produces in the hydraulic version. Just let me know your concerns and we will go from their. I hope Larry is happy with the results. That motor will be stealthy due to the idle quality and valve covers.

 

Nice work Jim. Congratulations. I know Larry has been talking about putting in this hydraulic roller for a long time. I hope to see it at Norwalk or Columbus this year. Larry, good luck with the rest of the install. Do you think you'll have any traction issues now?
:3gears:
Lon

 

And the $$$ required to replicate this build? Come on Powerball ray:

 

The knock graph is very telling.

 

JIM-Fantastic stuff, as always, from you!! when I return to Buicks one day, I will have a TSP engine, thanks for sharing all your knowledge and skill:gp:

 

Larry --you are trying to pass over the 11s and go straight to the 10s.

Also Alan and I noticed that another S event is forming this week and headed your way. Since the Snovertime is really over the top for you this year would you take some of the left over Franklin brothers and help Alan and me get into one of these new fangle roller mills?uzzled:

 

... you mean forgiveness, asked after the deed is done although that tactic has worn kinda thin after repeated use. I need a new M.O.

Counsellor ?

 

Scott [ very telling ] what is the graph telling you ,that you arn't telling us ?

Thanks Mark

 

It's simply a graph of mechanical noise of the engine. Noise is a frequency virbration in the iron, and a knock sensor turns that frequency into an electrical signal.

Being that everything is the same with the exception of the cam and lifters between those three graphs, it's not hard to conclude that the 413 and roller cam are pretty quiet, the Lunati cam is noisy.


From the graph it looks like if you shift that Roller motor at 5500 is should live a nice long life. Something definately starts to happen after 5500. It hung on ok to 6000, but there cetainly is something going on there, from the sharp rise at the end of the graph.

JW

 

Jim thanks for adding the video! This is one of my all time favorite thread here at V8. Now to put that video camera in Larry's car on his first 1/4 run with his new engine. Bet we will hear a little fart at about the 1/8th mile!!

 

"It's simply a graph of mechanical noise of the engine. Noise is a frequency virbration in the iron, and a knock sensor turns that frequency into an electrical signal.

Being that everything is the same with the exception of the cam and lifters between those three graphs, it's not hard to conclude that the 413 and roller cam are pretty quiet, the Lunati cam is noisy.

JW"

Other differences in the camshafts could also show up in the knock sensor readings besides the profile itself.
SB

 

Larry, All three cams show some noise @ 3000 But the asymmetrical lobed cam just seems to fall apart on it's way to 5500. The T/A cams seem very "quiet" on there way to 5500-6000. I used CamDynamics grinds in our pull trucks, asymmetrical lobes & they never seemed to rpm as well as many of the "old" symmetrical patterns, but they always showed more real world power under load !

Bottom line is this chart shows somthing is wrong with the VooDoo combo. If time had permited use of the solid lifters ,that may have shed some light on the subject.

I have been on the Lunati web site & have yet to find specs for springs & lifters to use with this cam. Is anyone running this camshaft & making it work ?

Thanks Larry
Go PACKERS !!!!

 

Jim,
All I can say is ...WOW... TSP quality as usual and expected.
Larry,
Adopt me...it doesn't matter that I'm 62, just adopt me