Well I got a 2.8 pulley with 42# injectors and was wondering if I got a retune from trifecta and some 60# injectors if that would give me more HP. also do MPG go down with 60s? and would I need n e thing else?

 

Its definitely going to be much safer.

 

but would I be faster??

 

The bigger injectors would allow more flexibility for tuning since the output of the injectors won't be nearly as close to going static like the 42's would.

 

Its not about power, its about being safe first.

 

so I won't go faster... lol

 

going faster would depend solely on the tune. Aggressive tuning with 42's and a 2.8 will be asking for a problem since the idc's will be too close to static, and if they do go static, you could do a lot of damage to the engine which you don't want. If you want to make more power, invest in a larger heat exchanger so when you do get tuned you'll have room for more timing. Cooler, denser air will call for more useable timing, which will result in more power.

 

thanks!! i did buy a OTT H/E just didn't get time to install it as yet.. so I should mention this to vince at trifecta I guess!! wow could always get answers on here thanks guys!!

 

No, you won't go faster.

 

I would. If you can install it before you get tuned, then great. The heat exchanger will help to bring temps down some, and you should be able to get a little more timing out of it. He'll know what to look for when he locks down your tune.

 

you'll go faster when your car isnt blown up

 

it's not like he's wanting to mate 42's with a tvs. I'd like to see how long that lasted.lol

 

my mpg did not go down with 60s and u should do better with teh 2.8 and 60s and the h.e i have a similar setup.

 

idc's were comparable to a 2.9"~2.8" setup on the m62 when the tvs was running a 3.55" pulley

 

I am going to have to run a return-style for my setup now. I just need that special part...

 

x2 last thing you want is a blown engine

 

60's will be more safe than 42's.

To kind of answer what your saying about will you go "faster". I would say yes. (I am using that loosely)

When I had that same setup my duty cyle was around 106% or in the area. When I had stage 2 with a tune I ran a 14.0 at 105, when I got my 2.8" then tuned, and had the 106% duty cycle, I ran a 14.5 at 98. This was because I was leaning out in the top end and it started pulling about 6-10 degrees of timing.

This was just what happened to mine, some people might have no problems with there 42# and 2.8" set up...

 

now that ^^ made sense!! I looked up what you said and thats just what I found.. thanks !!