Thumper heads vs. gt-40 heads?

[mike keirstead]

Just the exhaust is killer on Forced air or N.O.S. ( side note...* I hate the freaking fast and furious !! dam it NOS "IS" Nitrous Oxide Systems... screw the puting in periods, for every one not to rag... he said Naws!!.... are we all together on this???...COOL!!)
On a na engine you need intake !! as the racers know, Heads are important... but it is the CAM!! That is the real wizard!! The 40s are good numbers!! they will allow 12s on the right set up!! cool??

Just me...........................

Thumper

Thumper.....I had some Doberman yesterday....fairly tough meat. hehehhehe.

Were you in Gainsville on the weekend. That's quick for that 90 hatch. I bet he was happy with the results.

 

[5.0Droptop]

Hi Thumper!

 

[IndyBlk5.0]

so are you saying that i wasted my money if im not running forced induction? i have a good intake as you can see in my sig..

 

[mike keirstead]

so are you saying that i wasted my money if im not running forced induction? i have a good intake as you can see in my sig..

No it is not a waste of money. When you are running NITROUS or BOOST it is more critical that the exhaust flows well. It is not as crucial for NA. It will help all application's but the POWER ADDER will benefit more from good flowing exhaust.

Have you ever seen the profile of a good NITROUS or BOOST cam? Big exhaust numbers.

 

[5.0Droptop]

my nx264 specs

* Advertised duration: 264 intake/276 exhaust
* Duration at .050 in.: 212 intake/218 exhaust
* Gross valve lift: .512 in. intake/.512 in. exhaust
* Lobe separation: 114 degrees

 

[25thmustang]

All I can say is stock cammed, non ported 40s have been in the 11s for a while... If it wasnt for the cost I would say 40s all the way. Even after I add GT-40 VT, valve job, and mill my E7s, I will be getting beat by the GT-40 cars this summer.

 

[willys1]

"Yeah rite", your keeping your mouth shut

 

[mike keirstead]

"Yeah rite", your keeping your mouth shut

Well you asked me a question. Okokoko I will shut up.

 

[SR71TC]

Does Thumper port GT40's?

 

[5.0Droptop]

[email protected]

 

[slick88GT]

In my opinion go with the thumper's. I just had him port my heads about a month or 2 ago (maybe 3 now) and oh my god did they look different! They looked like a totally different head, the ports were huge compared to what they used to be. I threw them on my car with a crower cam and man it was a difference like night and day. I support his heads all the way. I'm gonna have t-moss port my intake in a week or so and then hopefully my car will be able to breathe properly.