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4vs are alot better than the 2vs and this is as cast, before porting. If you read my post above yours, the are direct replacements and TF is working on a versions for even more power with a blower. How much time and money is it goin to cost to get a 4v setup together and running well?
4V's arent just better as cast, they are a better design period.

If trickflow did the same work on a 4V head it would absolutely destroy their 2v.

Look at any "performance" honda engine, nissan engine, toyota engine, motorcycle engine, indy car engine, etc. ALL of them are DOHC.

Hell the s2000 makes the most HP per liter, what do they have DOHC.

As far as the "best" head design goes... 4V FTW all day. As far as practicality for those that don't really need 4V and up performance. trickflow...
 

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Absolutely. But since they don't...

Again the new trick flow 2v heads are showing flow numbers that are equal tom and sometimes besting stock 4v head flows.

Would porting the 4v make it even better? SURE! But then you could also port the trick flow,

A stock 2v GT with just these heads swapped are making Mach1 numbers from what I have been reading.
The porting potential of the trick flows will be minute. You really think trickflow doesn't port them in production? how do you think they are getting 4vish performance?
 

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Here's my point as you guys didn't seem to get it. Trickflow did a great job of getting the most power out of 16 valves as possible. Great. Now put yourselves in their shoes. You're trying to get as much flow as possible. Do you think they left flow restrictions in their heads for you to P&P out?? No. I have not had my hands on any but I can bet my bottom dollar that trick flow did a better job of designing the flow paths of their god sent 2v heads than you're machine shop could do. 90% of the possible improvements that can be done have been done. That leaves you with 10% go crazy! 4v heads were not designed to squeeze every last hp out of the motor.
 

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No I didn't say they must port them to get the better HP. I can assure you that they have done as much as they can to get these heads to where they are at.

And they are coming out with a new head for FI applications. I promise you they didn't half ass the production of the current model.

Here's an example of how this concept works. If you take a turbo off an SRT-4 and get it clipped and ported you will get more HP. If you take an aftermarket turbo such as a GT30 you will not be able to clip and port it for gains. this work has already been maximized. When Ford designed the 2V head they weren't going for MAX power. When TF designed their 2V they were going for MAX power.

If you want to get technical you are bashing TF far more than I am. I am saying that TF did the best that can be done for the 2V head. You are saying they didn't.
 

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"I'm sure there is. Some playing needs to be done. Trickflow hasn't even tried to port them yet. Obviously you can only flow so much air through 1 valve at a certain size, but I'm sure there are improvements to be made."

Oh I didnt realize that they were going to be able to outperform a worked over 4V with the playing that needs to be done....


DUDE! seriously. Yes they are excellent 2V's however...

"think I'm going with Fox Lake 3V heads (flowing 272)" -taken from your bible, err, thread
 

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"I will admit though the 3v motors really seem to be getting it done... In most milder applications i think 3v is the best way to go... But in the more extreme setups, you just cant beat the flow and capability of a 4v motor, esspecially when you are talkin about bigger displacement ones."

This was said by a guy with a 4.6 2V that ran an 11 with no 3rd gear... (blew it out at the track and ran it anyways.)
 

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The 2010 camaro is brand new and we know it sucks ass! Lol! Can of worms....you have been opened.

Anyways I've seen dohc 32 valve heads flowing in the 350-400cfm range. But the discussion seems to have started with someone saying these new trickflows will make 4V's obsolete. Which will never happen. I don't care if they haven't gotten cam profiles down and all that other BS. 4V is better than 2V. And we haven't even begun to discuss the higher rev thresholds of the 4V or the fact that god himself came down to earth to create the 4V.
 

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Oh and both of you pseudo TF representatives have been arguing all along that these new heads and their non existent FI counterparts will outflow the 4V's. Aswell as saying that it's not worth going 4V with these new metal orgasms you guys are losing your shiz over.

And I like how you guys went through and re-read the thread and had a rebuttal for everything.......except RPM...

Don't touch that guys, just try to ignore it, it's cool.
 
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