Re: TF270 accessories
[Re: AndyF]
#2707250
10/16/19 11:45 AM
10/16/19 11:45 AM
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Joined: Jan 2003
Posts: 14,531 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,531
So. Burlington, Vt.
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Why not pull the engine over the winter and get it on a dyno? Then you'll know how much power it is making and what the torque curve looks like. If you are super ambitious you can even line up some parts for testing on the dyno. Intake manifolds and carbs are easy to swap. Ignition timing is easy to adjust, etc. A cam change on the dyno is a major thrash so you might not want to attempt that but you should still be able to learn a lot. Yeh, but then you’d know what it makes for tq/hp, and what it “should” run, and be able to make informed decisions on how to proceed based on the results. What’s the fun in that?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: TF270 accessories
[Re: mopar dave]
#2707850
10/17/19 09:03 PM
10/17/19 09:03 PM
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Joined: Feb 2006
Posts: 1,057 The Great White North
RAMM
super stock
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super stock
Joined: Feb 2006
Posts: 1,057
The Great White North
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That's what I have done. The engine is not making the power it should. Every thing in the combo is big except the compression, so that will now get addressed. I feel the ports are sub par design compared to TF and Indy. They are huge and lazy from what I can gather. Talked to a few on another forum and they have very similar combos going fast. Only difference is they have 12.5-13:1 compression and roller cams. I don't fell my cam is far off if any. Told you before when you were attacking me in other Victor cylinder head threads----These heads take serious work and ($$$$$$$$$$$$$$$) to get them to perform. You called me all kinds of unpleasantries. These heads suck in terms of bang vs buck--period. J.Rob p.s. @ CCDave--I could describe in great detail what it would take to get your heads up to snuff but ........
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: TF270 accessories
[Re: mopar dave]
#2707966
10/18/19 09:47 AM
10/18/19 09:47 AM
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Joined: Jan 2003
Posts: 14,531 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,531
So. Burlington, Vt.
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It’s easy enough...... just copy what Todd did with the motor that was running solidly in the 9’s........ with the very heads that are on your motor.
In my mind it’s simple........ your heads(not heads like your heads)have already proven they are capable of going way quicker than you have. Whatever the problem is.........it isn’t the heads themselves.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: TF270 accessories
[Re: mopar dave]
#2708012
10/18/19 11:07 AM
10/18/19 11:07 AM
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Joined: Jan 2003
Posts: 14,531 So. Burlington, Vt.
fast68plymouth
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I Live Here
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So. Burlington, Vt.
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I would sure think it would run the same if I copied what Todd did with that engine. More compression and a short roller, but I don't know what they had for duration. Maybe a more economical way to go would be a more aggressive lobe flat tappet .625-.650 lift on a 108 with the compression boost. It looks like i'll have the springs on there way to you next week. You tell me if the springs are good or bad and i'll decide what I will do from there. Thanks I’m pretty sure it was an off the shelf cam. I don’t think it was top secret....... just ask Todd for the part number.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: TF270 accessories
[Re: powertrip]
#2708102
10/18/19 01:46 PM
10/18/19 01:46 PM
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Joined: Jan 2003
Posts: 14,531 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
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Posts: 14,531
So. Burlington, Vt.
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J.Rob- I for one would really be interested in what you have found to make these heads perform. With a long valve and offset rockers, I would think they have as much potential as 440-1's, and more potential than the Trick Flows (Trick Flows limited by standard offset rockers).
I’m pretty sure he had posted a pretty detailed thread on them several years ago when he was using them for his Enginemasters entry. Careful searching would probably get you to the thread.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: TF270 accessories
[Re: mopar dave]
#2708501
10/20/19 11:20 AM
10/20/19 11:20 AM
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Joined: Jan 2003
Posts: 16,936 NC
440Jim
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I Live Here
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NC
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Also, I want to install a factory cover with the timing scale mounted on it for more accurate timing settings. I don't like the one I have. While you are doing that this winter, find the true top dead center (such as with a piston stop and hand turning) and mark it on the new cover (they can be off). I have had good luck with timing marks (+/- 1 deg) over the years; but others have had issues. When building, I use a dial indicator on the piston (heads not installed) to verify TDC from crank key, damper, cover, etc.
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