Trick Flow 500ci RESULTS Are In!

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MRL Performance

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Ok so I finally got this 400-500 stroker on the dyno today, and the results are in. Here is the Basic rundown

400 B Block w/MRL oiling mods and a few other things
4.150 stroker crank
6.760 I beam rods
Racetec pistons, dished
Trick Flow heads, untouched OOTB!
Hughes roller rockers
RPM intake
Proform 850
MRL Custom HR cam mid 230's duration .550+ lift
FBO Ignition(made 15HP MORE than MSD 6 Digital)
10.7 to 1 Pump gas compression

So I know all you want more info on these heads. I did fill in the little "Voids" with epoxy and used a dab of sealer on all 4 corners, No leaks at all. I got some of the very first heads and this was an issue as many of you know.. Other than that I left them alone to see how well they would perform. I have another set coming soon, and we will be porting them out to see whats what!

Anyhow on with it!

All pulls were made from 2700-5500rpm. Good sweep to show the torque down low. Torque, its a very Nice thing to have for a street beast. More is better, even more is just the $HIT!

This one made 675TQ @ 3800 rpm. It also made 600TQ+ from >2700rpm starting point to 5300rpm. 620TQ at 2700rpm, DAMN!

Power, well it made a little bit of that as well. 608HP at 5400rpm. Yup, 600+HP from 5050rpm on up. It hit 550HP at 4350rpm. Not to bad for a Mild street engine.

It has a nice, slight lope at 900rpm idle and was pulling 15in vacuum. I had it idling all the way down to 500rpm, still pulling 11in vacuum, but thats just stupid to idle it that low.

BSFC was good, solidly in the mid .400's for most of the run. Ran it at 180* water temo and 210* oil temp, real life temps.

Pics and dyno sheets attached. Enjoy! And BTW, YES the TFS 440 CNC 240 heads are the Real Deal!
 

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A real big thanks to you Mike!
Freakin awesome dude!
 
Thanks Mike. This is a great comparison for me, because I have a virtually identical short block right down to the 230ish hydraulic roller cam. With mildly ported 452 heads it made 550 HP and 610 TQ with a really flat torque curve. I ended up swapping to OOTB Edelbrock Performer RPM's and picked up about 2 1/2 tenths in the quarter, so I figured maybe 25 HP and the same amount of torque. Your engine beats that by another 30 HP and 40 TQ. You just can't beat that kind of torque for a street car, and you never need to rev it over 5500 RPM.
 

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I think the TF combustion chamber design is the reason for the low BSFC numbers. My 470 engine is in the low .40 range also at torque peak. Interesting side effect of good BSFC numbers is that the engine doesn't need as much air since it isn't burning a lot of fuel so a smaller carb works just fine.
 
toolmanmike said:
Big numbers Mike
Click to expand...

That's just it. They really are not. Not for what those heads are capable of. That was ootb numbers. Impressive to say the least. I wanna see fully ported numbers on some kind shagnasty somethin.
 
Thank you very much Mike. Can you be specific on the camshaft and lifters? Non bushed lifter bores? TFS valve springs as received? Which ones? Are you in the Grand Rapids, MI area?
 
Old Man Mopar said:
Thank you very much Mike. Can you be specific on the camshaft and lifters? Non bushed lifter bores? TFS valve springs as received? Which ones? Are you in the Grand Rapids, MI area?
Click to expand...

cam is custom, owner of engine owns specs and asked me not to share. no bushed lifter bores. heads were ootb, I changed nothing. I'm 90 miles due east of GR, in Chesaning.
 
Thanks. Do you feel that the MRL oiling mod is beneficial for a hydraulic cammed
street motor that won't ever rev over 6500 rpm? What does MRL charge for this?
 
I believe it does. I have seen a decrease in valvetrian wear, and it has shown to help keep valve adjustment very consistent in solid cammed engines. Charge for it??? I have never done for an engine we havnt built, dont know.
 
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