Absolute Apex Manifold only

SleeperDuty · Feb 14, 2015

At the end of the day its one less restriction one has to deal with.

SleeperDuty · Feb 14, 2015

bigrpowr said:
honestly, 20hp and all the other stuff for the price is pretty huge.

Agreed.

Also, I'll be placing an order with you for some No Limit goodies in the very near future.

sootie · Feb 15, 2015

04cr450 said:
He has point.. 6.0 heads stink flow wise. If u wanna do it right than yes u have to port and polish the heads along with the Intake.. just because the Intake flows more doesn't mean the heads will magically start flowing more. You can port and polish as much as u want in the intake but at the end of the day it still has to go into the stock ports of the heads, which is a dead end so to speak.

I say all this, I have a fully ported intake, egr everything cut out and didn't notice jack except drop in egts. I'd say after doing the no limit intake- these two mods are similar gain wise(manifold a touch more drop in egts ).

the stock intake manifold does not outflow the heads-a ported one does. it also balances the airflow to each cylinder...

swinky · Feb 15, 2015

sootie said:
the stock intake manifold does not outflow the heads-a ported one does. it also balances the airflow to each cylinder...

Yeah that would be nice. Should help the motor live

bigrpowr · Feb 15, 2015

swinky said:
Yeah that would be nice. Should help the motor live

and gains are all relative. on a 6.4 its pretty substantial in driving characteristics. when bft had high powers and the elite manifold on 37's , his felt just as strong as mine lowered with same setup and no manifold. quicker spool and lower egt as well .

lenzhotrod · Feb 19, 2015

Thanks for your time and effort, I've paid a lot more for worse results! Also the higher you get on your HP scale the smaller the returns of modifications.

SleeperDuty · Feb 23, 2015

Ok guys one last post, noticed about a 100* drop in egts while towing...Difference is the load I was towing, was about 6k heavier over my normal load egts before the manifold. With an unloaded trailer weighing 1700lbs egts were the same as when the truck was empty before.

f3502wd · Feb 23, 2015

lenzhotrod said:
Thanks for your time and effort, I've paid a lot more for worse results! Also the higher you get on your HP scale the smaller the returns of modifications.

How is that? More power, more air, more flow:shrug:

sootie · Feb 23, 2015

f3502wd said:
How is that? More power, more air, more flow:shrug:

what he means is the higher you get in HP, the harder more HP is to get. for example-throwing a tune on a truck is the easiest HP you will ever get. once you have done turbo, injectors, intake, exhaust, tune-when you try and squeak another 1 HP out of it, it is a lot of work.

f3502wd · Feb 23, 2015

sootie said:
what he means is the higher you get in HP, the harder more HP is to get. for example-throwing a tune on a truck is the easiest HP you will ever get. once you have done turbo, injectors, intake, exhaust, tune-when you try and squeak another 1 HP out of it, it is a lot of work.

Same goes for an intake though. If your running an aftermarket intake on a stock 6.0 your not going to get much, but if you switch from stock on a modded truck you would see a big gain. Just playing devils advocate thats all.

SleeperDuty · Feb 23, 2015

sootie said:
what he means is the higher you get in HP, the harder more HP is to get. for example-throwing a tune on a truck is the easiest HP you will ever get. once you have done turbo, injectors, intake, exhaust, tune-when you try and squeak another 1 HP out of it, it is a lot of work.

Could always go bigger with those two

SleeperDuty · Feb 23, 2015

The more air you flow through the stock intercooler, manifold, head the bigger the restriction they become plain and simple.

sootie · Feb 23, 2015

not sure what you are getting at. im a firm believer in ported intake manifolds as you can tell.

all im saying is when you are topping out a platform for power, doller per HP gain is much more extreme.

f3502wd · Feb 23, 2015

SleeperDuty said:
The more air you flow through the stock intercooler, manifold, head the bigger the restriction they become plain and simple.

exactly, I think we are all saying the same thing in diff words lol

Buellstunter · Mar 12, 2015

Been reading the intake threads and looking at pictures of the intakes. I got a question regarding the mounting bolts on the ported intakes. What grade and type of bolts are being used? Has anyone heard of a bolt head breaking off and going into the motor?