512 Trick Flow 270 Dyno today

[Bigfoots N Mopars]

So this Happened today... will post video to my YouTube Channel. Had a leak at the front of the oil pan/ bottom of the timing cover? Sooo that will be fixed. Otherwise made 4 pulls. They adjusted the timing from 36 to 34 once which dropped a couple Hp so stayed at 36. The Wilson spacer gave the best number for the day.

This is “corrected power” data. I’ll share the other data if it is preferred. I don’t know the proper Dyno etiquette.

The numbers are COOL, but I was glad the “Mystery Mudder” turned out well. To be honest it’s more than I really wanted... and I have mixed feelings about it. I have a Cope Pro Street rmv transmission and we are building a Dana. But a long ways to go yet

It started perfectly, no issues breaking in. The Quick Fuel carburetor was literally “out of the box” barely needing adjustment.

We used 91 octane with less than 10% Race gas, but looks like it can live on 93 octane. Which would be cool.

I’ll find the cam card and give details adout the build in the next post from me on this thread.

I’m sharing this for guys looking at Trick Flow 270s. I am not a mechanic or engine builder. So this is as much as I know for now.

Thanks

 

[Mike67]

Nice! Congrats!

 

[Tex013]

real nice result .
When you list cam card also list a motor rundown please .
that will certainly wake you up

Tex

 

[Bigfoots N Mopars]

Nice! Congrats!

Thank you, luckily I drove the car a lot last Summer with its 318 2brl so this kind of power will be easy to handle.

 

[Bigfoots N Mopars]

real nice result .
When you list cam card also list a motor rundown please .
that will certainly wake you up

Tex

Thanks Tex, I’ll do the best I can. We tried to use basic but good parts. Engine is way less complicated than when I got it... and makes an easy 150+ Hp more.

What was I thinkingI this I what I started with:



Now:

 

[Tex013]

Thanks Tex, I’ll do the best I can. We tried to use basic but good parts. Engine is way less complicated than when I got it... and makes an easy 150+ Hp more.

What was I thinking

View attachment 588531

Tunnel ram , well that helps

Tex

 

[IQ52]

That is really nice. Oh and corrected power is generally what is shown.

 

[rumblefish360]

Thanks Tex, I’ll do the best I can. We tried to use basic but good parts. Engine is way less complicated than when I got it... and makes an easy 150+ Hp more.

What was I thinkingI this I what I started with:

View attachment 588531

Now: View attachment 588576

Congrats! Do you have a build thread on this?

 

[Bigfoots N Mopars]

400 block bored .45 over, 12.5:Compression ratio

440 Source 512 Stroker Kit

Comp Cams 324A-8 solid lifter Cam
290/290 duration at .50
108 lobe separation
.650/.650 gross valve lift

Comp Cams 1.5 steel roller rockers

Tick Flow 270 heads

INDY Max Wedge intake

Quick Fuel 850 cam carb

Wilson 2” tapered 4 hole spacer on final pull only

Gary said they did some slight clean up porting on the heads (unshrouding the valve guides?) and everything was port matched to the intake gasket




I sold the tunnel ram, predator carburetors, Stealth heads, oil pan and external remote oiling system, electric water pump, Howard’s solid roller cam and the 440 Source 1.6 ratio roller rockers, and the Milodon gear drive system.

 

[Bigfoots N Mopars]

That is really nice. Oh and corrected power is generally what is shown.

Thanks, that means a lot coming from you. I have read many of your posts.

 

[Bigfoots N Mopars]

Tunnel ram , well that helps

Tex

Sorry, I didn’t have pictures of the Dynoed engine on my IPAD so I finished the previous post.

 

[Moparstyle]

Hell yes congrats

 

[Hemirunner]

400 block bored .45 over, 12.5:Compression ratio

440 Source 512 Stroker Kit

Comp Cams 324A-8 solid lifter Cam
290/290 duration at .50
108 lobe separation
.650/.650 gross valve lift

Comp Cams 1.5 steel roller rockers

Tick Flow 270 heads

INDY Max Wedge intake

Quick Fuel 850 cam carb

Wilson 2” tapered 4 hole spacer on final pull only

Gary said they did some slight clean up porting on the heads (unshrouding the valve guides?) and everything was port matched to the intake gasket

View attachment 588577


I sold the tunnel ram, predator carburetors, Stealth heads, oil pan and external remote oiling system, electric water pump, Howard’s solid roller cam and the 440 Source 1.6 ratio roller rockers, and the Milodon gear drive system.

Very nice but that combo was just getting to the good stuff at 6100 when you guys shut her off, lol. I think I would have least gone 7000rpm.

 

[Bigfoots N Mopars]

Very nice but that combo was just getting to the good stuff at 6100 when you guys shut her off, lol. I think I would have least gone 7000rpm.

Yeah, looks like it might of had a little more but we built it with 6000 rpm in mind. Already going to be pushing the bottom end at that rpm. And wanted to fix the leak.

 

[Hemirunner]

Yeah, looks like it might of had a little more but we built it with 6000 rpm in mind. Already going to be pushing the bottom end at that rpm. And wanted to fix the leak.

I’m just razzn ya. Great build and congrats!

 

[biomedtechguy]

Very nice but that combo was just getting to the good stuff at 6100 when you guys shut her off, lol. I think I would have least gone 7000rpm.

I was thinking the same. Not sure how much going "stroker" affects top RPM capability within safe limits without piston speed calculations, etc. I know that they have more "stresses" due to the longer stroke. Then again someone who knows much much more than I may chime in and correct my opinion.
I was thinking about the 270s vs 240s, but I don't really know an active engine builder who I would trust to do the heavy mods to my Chrysler/Edelbrock aluminum 6bbl intake that the 270s would require, and the dual plane design may also not be conducive to work best with those port sizes. I have always been impressed with Chrysler engineering on the Max Wedge motors. From my novice perspective, I figure the 6XX HP AND TQ range I'm looking for and requirement to use the aluminum Chrysler/Edelbrock 6bbl intake and Holley carbs is better served by the 240s, will cost less to build because TQ and HP will come in at lower RPMs making it cost less to build and I won't have to wring its neck to get there.
I don't mean to hijack-GREAT dyno numbers, but this is THE place I trust for advice before I lay out 10k or so for a stroker build.

 

[Bigfoots N Mopars]

I was thinking the same. Not sure how much going "stroker" affects top RPM capability within safe limits without piston speed calculations, etc. I know that they have more "stresses" due to the longer stroke. Then again someone who knows much much more than I may chime in and correct my opinion.
I was thinking about the 270s vs 240s, but I don't really know an active engine builder who I would trust to do the heavy mods to my Chrysler/Edelbrock aluminum 6bbl intake that the 270s would require, and the dual plane design may also not be conducive to work best with those port sizes. I have always been impressed with Chrysler engineering on the Max Wedge motors. From my novice perspective, I figure the 6XX HP AND TQ range I'm looking for and requirement to use the aluminum Chrysler/Edelbrock 6bbl intake and Holley carbs is better served by the 240s, will cost less to build because TQ and HP will come in at lower RPMs making it cost less to build and I won't have to wring its neck to get there.
I don't mean to hijack-GREAT dyno numbers, but this is THE place I trust for advice before I lay out 10k or so for a stroker build.

Gary had built 2 other engines using the Trick Flow 240s and was very impressed. He was as excited as me. This was the first TF 270 build for him. He's building another very similar engine for a guy who is insisting on using the Victor heads because he wants "more power". It will be interesting to compare. I don't think your goals would be hard to reach. Didn't IQ52 build a six pack TF 240 engine for 68GTX? I drooled over it while we built this. I went lower cost where I could like the rocker assembly, but don't feel I sacrificed too much performance by skipping the Harland Sharp rocker assembly suggested by Trick Flow...didn't have the extra $1,000.00 laying around. The Comp Cam steel roller assembly fit my needs. All in after selling my other parts I'm in around $8k, made easy considering it was over the past year...and I used mostly the money from selling my Harley, and the $1,700.00 selling the parts listed above.

 

[biomedtechguy]

Didn't IQ52 build a six pack TF 240 engine for 68GTX?

IQ52
I communicated with him recently.
He was my 1st choice,
no longer available...
Goals definitely within reach! Just a question of who to trust, especially with the 6bbl tuning and the Trick Flow 240s.

 

[Hemirunner]

I was thinking the same. Not sure how much going "stroker" affects top RPM capability within safe limits without piston speed calculations, etc. I know that they have more "stresses" due to the longer stroke.

The top end(intake, heads and cam) have way more to do with the engine’s ability to reach a certain rpm , and where HP will peak, than the actual stroke number. We regularly run 4.5 stroke hemis to 7500rpm because the top end will support it. My rev limiter in mine is set at 8000rpm.

 

[Bigfoots N Mopars]

IQ52
I communicated with him recently.
He was my 1st choice,
no longer available...
Goals definitely within reach! Just a question of who to trust, especially with the 6bbl tuning and the Trick Flow 240s.

It's scary for sure. I talked to 4 builders. All very professional. I went with the guy I had fun talking to, not always the smartest way to make a decision. I'm sure there are guys that would warn me to stay away from him...and any one of the others if you look long enough. I finally just jumped in. In the end, it turned out . He made the power he predicted. He promised Pump Gas! He actually steered me away from spending on high dollar parts. He gave me sh!t because I bought the "Wilson" spacer after reading the Andy F article on his 470 Trick Flow 270 article in Hot Rod Magazine. And we were both bummed about the oil leak but the engine went back with him to fix before delivery.