New Sponsor! Trick Flow
Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
New Sponsor! Trick Flow Please give a nice welcome to our newest site sponsors, Trick Flow Specialties (www.TrickFlow.com). Most of you already know who they are, several of you already run their cylinder heads. Excellent products, and we are glad to have them here.
The crew from TFS will be around to answer any product related or technical questions for you. Another benefit of being at LS1TECH, we put you in direct contact with the performance industry!
Tony
The crew from TFS will be around to answer any product related or technical questions for you. Another benefit of being at LS1TECH, we put you in direct contact with the performance industry!
Tony
LS1Tech Sponsor
Joined: Feb 2008
Posts: 300
Likes: 18
Lift intake exhaust
.100 67 47
.200 133 104
.300 211 167
.400 261 202
.500 292 222
.550 299 229
.600 305 233
@28" of water; cnc profiled chambers; with a 1 7/8 pipe.
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My "As-Cast" TFS 215's flowed better than that, however they were milled to 59cc combustion chambers. I will hopefully have the car together before too much longer. It's getting race season, track opens Saturday here.
I've got a pair with 60cc chambers en route. 
I have a pushrod question for TFS.
I believe the TFS heads use a little bit longer pushrod. I have also read that Spintron testing has been showing the 5/16" pushrods (any head) have quite a bit of flex (several test sites have reported this). Has TFS ever considered fabricating an LSx specific tapered pushrod in lengths say from 7.300" to 7.500" (0.025 increments) that would help minimize the pushrod deflection yet still fit within the stock head without machining?
PS: Welcome as a sponsor.
I believe the TFS heads use a little bit longer pushrod. I have also read that Spintron testing has been showing the 5/16" pushrods (any head) have quite a bit of flex (several test sites have reported this). Has TFS ever considered fabricating an LSx specific tapered pushrod in lengths say from 7.300" to 7.500" (0.025 increments) that would help minimize the pushrod deflection yet still fit within the stock head without machining?
PS: Welcome as a sponsor.
Is this the 215cc cnc ported heads? I did find one site that said they flowed 320cfm @.600 lift and 306 at .500 lift. Was this wrong?
This is what I pulled off of summit racings web site. I will be using these heads milled to 61cc and a 232/236-642/612-114LSA cam. Allan @ futrals says the car should be making around 575 to the flywheel. Does seem about right?
http://www.summitracing.com/streetan...B7ABC0A4B42%7D
http://www.summitracing.com/streetan...B7ABC0A4B42%7D