What are the gains/pros/cons from swapping the heads from a TL-s to a 06 TL?

From what i have read, your gonna get better air flow . thats all i could find.

Thanks for the help!

 

Not sure what the cons would be but I'm defintely sure, as you said, that airflow would defintely be improved giving a small increase power gains. I believe the type-s cams are also lighter (hollow cams as oppsed to solid cams of base model).

A port n polish of them might generate a few more ponies as well.

 

without the pnp, what would be the gains?

 

probably just more low end tq

 

With better airflow, it's more than likely going to show up across the rpm range but mostly up top. This is assuming you're using the stock cams. With the Type-S cams, expect the entire powerband to shift upward.

To make the best of the heads whether ported or not, you need the intake modifications to let them breathe.

Since I don't work on these engines someone like NA-V6 could help much more. Be careful on compression ratio changes. With the larger displacement of the TL-S 3.5L engine either the heads will have a larger chamber to keep compression the same or the TL-S pistons will have less of a dome/more dish to keep compression the same.

What this means when installing TL-S heads on a J-32 is you could end up with lower compression than stock but a more experienced Honda person could give you a solid answer to that question.

If I were going to port the heads I would look closely at what each head offers. Sometimes a worse flowing head in stock form can offer more potential once ported. Again, an experienced Honda person could answer this.

 

bump

 

Anyone?

 

Type-S heads have stiffer valve springs (give you a margin of error), more aggressive lighter cams, oversized exhaust valves.......

 

are they worth it for a complete bolt-on modded 6 spd 3.2?

 

^ U might as well go j35/j36 build. since u will be spending $$ anyways, or pnp everything (heads,intake, etc) then install type-s cams and call it a day if you don't wanna spend too much.

 

I doubt the heavier springs give you a larger margin of error. They're probably necessary for the higher ramp speeds with the more aggressive cams and potentially heavier valves.

 

If you're going to spend that kind of money you're better off doing the turbo setup and making more hp and much, much more torque throughout the entire powerband on the stock J32.

 

ima just get the heads and go from there. Thanks AZ.

 

true man. turbo is without a doubt best bang for buck, but i wasn't sure if the guy wanted to go just NA. and i don't mean to downgrade the turbo but until other members start driving the j32 turboed i can't really say too much for realiabilty. i am really pumped about the turbo, and plan on getting the turbo and hope for kit to be a success. On the other hand, j35/j36 strokers like the one ussi has have been running strong for years now, so just wanted to give the op a idea. thanks for the pointer though IHC, i know ur excited about the turbo too, any plans on getting it soon urself?

 

One day. I have no self control.

NA is fun and more of a challenge. And no doubt the reliability is there. I just love the torque and broad powerband of the turbo. I think now that we have a couple of these kits being delivered to customers we're going to see a drastic rise in the number of turbo TLs.

Adding displacement and corresponding airflow is basically the equivalent of the turbo just on a smaller scale. You gain power everywhere in the rev range. It's adding airflow in the form of bigger cams and ported heads on the same displacement that changes things. I'm sure you know this already but if you went with a J37 and ported Type-S heads no one would be worried about low end torque. But with the better heads on the J32 there's just a little worry.

 

^ i understand completely. yeah i say the more turbo tl/j-series the better!!! more aftermarkets support will soon be on its way! and hopefully hondata too so we can actually advance our timing.