FFIM / dyno questions

[born2drv]

So I got my maft-pro tuned a bit better the other day and put down 379hp@12psi (lower then the 491hp @26psi obviously). Since everyone around here's been blowing shit up lately I thought I'd take it easy until I get more parts for my next big rebuild and stick with 12psi

But I was wondering, do you think I'll be able to hit 400hp@12psi by making the following changes:

- getting rid of stock intake mani, going FFIM
- eliminating about 3 feet of 2.5" pipe cold side and going 3" instead.
- upgrading TB to 80mm instead of stock

What do you think??? Is 400hp achievable with just those upgrades and keeping it at 12psi?

 

[dbsupra90]

the tbody and piping wont really add any power, but it will help w/ response and spool.

the FFIM should add some power, but it depends on the rest of the setup. at 12psi you may or may not see much difference. maybe a set of those cam gears would help

 

[chriso]

I would think you could easinly go up to at least 16psi with no problems.

 

[born2drv]

Ya I know I can push 16+psi but I want to get as much out of 12psi as possible, this is my short term goal to make it as efficient and powerful at low boost before turning it up. Plus I want to be able to compare apples to apples to see how much of a gain the FFIM yields me.

dbsupra - i'm gonna put the cam gears on the same time as the new cams from HPF

 

[starscream5000]

I'd say most definitely, You will gain by using the bigger TB and FFIM. The decrease in piping length will increase throttle response and spool, and it will increase HP by a little bit, but the biggest gain is with the FFIM. If you go 3" on piping make sure your IC has 3" inlets and outlets or you are just defeating the purpose of going larger. I would rather try to do 2.75" piping if you are dead set on getting bigger hard pipes and keep the stock TB as it is about 2.75".

400 HP @ 12psi on that setup? Not a problem

 

[born2drv]

my IC has 3" in/out but I'm using 2.5" reducers for the 2.5" pipe... i always planned to go bigger eventually. i'm going to leave my hot side as is for now since i plan on getting a new manifold and another turbo eventually.