580hp 502tq 397ci LT1 on engine dyno (8.5:1)

[Karl Ellwein]

The heaviest rotating assembly I have ever put together surprised me on the engine dyno when it pulled solid HP and torque numbers, (580/502).
Note that I've only had a few motors on the engine dyno. This is the flattest torque curve I have seen for an LT1. Big, thick, heavy, sturdy pistons may actually do what Diamond claims, (make more power than short skirt pistons). Well I don't know but it's fun to investigate. I'm sure the heads and cam are 90% of this story.
+.700" lift mechanical roller cam from Ai, (for F1R blower motor). 21* TFS heads by Ai (with inconel exhaust valves). 3/8" pushrods and SS Crower shaft rockers keep it firm.
I have a new customer that is going to do close to this same head-cam combo but for an all natural application. I hope to show 600 dyno hp in a few months from that motor. It will be very interesting to see what more compression and less rotating mass will do.
Dyno video link via youtube
https://youtu.be/FyEmVfqDJq0
Link to build specs http://www.ellweinengines.com/ERE54JeZus/ERE54.htm
331553315633157

[popo8]

Wow... thats impressive!

Thank u for posting Karl, look forward to more posts from u.

[blackbirdws6]

Great build. I am looking forward to seeing what this will do with boost. What is the anticipated redline for this motor? Is there a reason the 21 degree heads were selected versus the bigger units on the market?

[harner]

Thanks, Karl! That thing is a monster, for sure.

[SSlowBoat]

That is a thing of lt1 beauty! Nice work karl!

[97firehawk]

Killer

[MEAN LT1]

Very nice. I love the rockers. Crower makes good stuff.

[GuillaumeC]

This is going to be a monster with the blower!!

How much power do you expect it to make with the F1R?

[Karl Ellwein]

Red line: 6500rpm . I told Anders the owner that 6000 rpm would be a good shift point and to keep her under 6500rpm for longevity. Brian, for the 21* ? I don't know. Ai was told the application and they picked the 21* TFS. Maybe the motor would do better with bigger heads seeing it is a big boost FI motor. Anders just wants to get his car down the track quicker than his buddy, (my other Swedish customer). So if he can sort out his car combo and tune and keep this motor alive I'll be happy. :) Those heads are an odd pick for a big boost motor now that you mention it.

[Karl Ellwein]

Guillamue I think 1000 hp with the blower. He had already made that much in the previous combo with AFR heads and JE/SRP pistons.

[Fastbird]

Good lord. That's VERY impressive considering the relatively low (OK, REALLY LOW) SCR. Talk about a combo that's working well together. Wow.

[Puck]

That thing is going to love boost.

The heads do seem awfully small for a boosted 397, but AI knows what they are doing so it probably was on purpose to keep the power down in the sub 6500RPM range.

[383z]

DAMN! JeZus, Baby Jesus, or Holy Cow...whatever you want to call it that's a bad mamma jamma!
Do you have pictures of the car that it's going into?

[Karl Ellwein]

This is a link to the owner's web site. Anders Envall. It is informative and entertaining. Lots of good photos and fun reading.
http://blackout.nu/

There is something about keeping the power peak under 6500rpm Puck. You have a very good point. My other Sweden customer with a very similar combo ran his LT1 motor to 7200 rpm (with F2 blower) and he is still recovering and salvaging the motor. That rpm really stressed it. The bores were scuffed up from thrust. His damage from running it at that RPM and the 1125 hp @ 7200 rpm and 34 psi boost is what convinced me to 1/2 fill the block and keep the rpm down for this motor.

[GuillaumeC]

This is a link to the owner's web site. Anders Envall. It is informative and entertaining. Lots of good photos and fun reading.
http://blackout.nu/

There is something about keeping the power peak under 6500rpm Puck. You have a very good point. My other Sweden customer with a very similar combo ran his LT1 motor to 7200 rpm (with F2 blower) and he is still recovering and salvaging the motor. That rpm really stressed it. The bores were scuffed up from thrust. His damage from running it at that RPM and the 1125 hp @ 7200 rpm and 34 psi boost is what convinced me to 1/2 fill the block and keep the rpm down for this motor.


Do you think a motor with a stock stroke and 6.00" rods would live longer at high RPM?

You got me worried about my motor... 3.48" stroke, 6.00" rods with AI 215cc TFS heads and a Victor E intake. Should spin to 6500-7000 RPM.

[shownomercy]

Any insight on piston cooling via oil squirters Karl?

[Karl Ellwein]

Do you think a motor with a stock stroke and 6.00" rods would live longer at high RPM?

You got me worried about my motor... 3.48" stroke, 6.00" rods with AI 215cc TFS heads and a Victor E intake. Should spin to 6500-7000 RPM.

I think that will be fine due to the 6" rods and short stroke. Sounds like a good combo Guillaume. Just know that all of the 1000 hp motors I have torn down have out of round bores. They run fine even with the out of round, (up to a point). I'm going to see what the block fill does.

[Vicious95Z28]

Very nice Karl, it's good to see you here! I'm certain that you don't remember me but we spoke a few times years ago, I'm glad you're here!

[Flyinz]

Lots of good info on this topic/posting.

[Camaro96]

Thank you for the great example of a powerful LT-1 will look forward to see more of your work with LT-1
Thanks again

Sent from my SM-N915V using Tapatalk

[The SRZ]

Sick build and just as impressive his crank support kit. God I wish he'd make another as I'd buy it on the spot!

[popo8]

http://images.tapatalk-cdn.com/15/11/09/0295d1cdd6112334cf3a46f2140ac48b.jpg

Oh damn... i didnt realize it was in a b body! Nice!!!

LTXtech.com IS my drug...
OWNER/ADMIN

[Yenkohead]

http://images.tapatalk-cdn.com/15/11/09/0295d1cdd6112334cf3a46f2140ac48b.jpg

Oh damn... i didnt realize it was in a b body! Nice!!!

LTXtech.com IS my drug...
OWNER/ADMIN

Yeah, I just spent the last hour and a half reading all about the Whiplash Camaro. Really cool stuff!

Greg

[sseeya]

Here's a dyno graph of the all natural motor Karl was talking about. It made 646hp@6400 and 578lb/ft@5200
You can find Karl's build page here: http://www.ellweinengines.com/ERE62/ERE62.htm

34988

[kgkern01]

Very cice numbers for an NA LT1! How do the 21* AI TFS heads compare to the AFR 210 Comp heads? Also, what are the gains on single plane vs ported LT4 intake?

[Karl Ellwein]

I apologize for neglecting this forum. I get so busy with my day job and the LT1 side job...….
Just this year, (2019), I found time to put my personal impala SS together with a stronger engine and more typical street / strip combo. It will be fun to get back into racing and tuning and attending events, (LIKE THE LTX shootout 2020) !!!! Mike G. we need to get you to the shootout somehow!

I have enjoyed catch up reading of the LTx shootout.