Gents,

Currently i'm running a 3076 t3 setup with a ford style 5 bolt flange. Currently my DP is 2.5 in, with e85 and TOBZ perfection i'm at 488 awhp on a MD.

Since my car isn't selling i'm thinking about upgrading to gtx 3076 or or gtx 35. Thjs would increase spool and horsepower, making DD more enjoyable, and put something fresh under the hood.

I could easily just throw a another turbo in there with the dp and call it a day, or I switch some things up and get a 3 in dp.

Does anybody know if it would be worth my while to go into a 3in dp? I'm not looking for ***** out, get every oz of power. But, if this is going to greatly efffect spool and whp I need to make the change with the purchase.

My thoughts are a 3 in v-band set up would a **** ton easier to install and deal with later. Downside would be having to ether custom make a dp or buy one from a kit like the ets and see if it mates up.

What do you guys think..

 

The down pipe. will help since it will breath easyer. few hp to be had.

 

Is swaping turbine housings an option for you? If you able to go down in A/R that would have a larger impact on turbo spool then increasing the downpipe.

 

you make roughly 400whp/360wtq because those inflated numbers are corrected and they are what you could "possibly" make at sea level with perfect conditions.

 

^ that is not the point at all, i really don't give a flying **** about corrected vs uncorrected number, at no point was that even the topic of discussion.

Regardless of inflated numbers or not, this thread is about a 3 in DP being cost effective vs the whp gains/spool time using a gtx3076 at 30psi

 

you might loose some TQ but gain HP id go 3" V-band for sure

 

Who cares? Get off your dyno number high horse you hypocrite.

Toastman, the 3" downpipe on the current turbo will net you a little bit of power but a turbo upgrade would get you the best results.

 

than why post your dyno numbers at all if you dont care?

 

it wasn't a dick swinging contest, it was to establish a power level and see if the size of dp mattered or not

 

Why post at all when you had nothing of value to add.

For not caring back then you sure do have a hard on for caring now.

 

o geez always have to resort to the a dick measuring contest instead of helping the OP out, i agree that the 3' will net more power but a turbo upgrade would net the most power hope this helps

 

Some people will disagree but .
IMO you don't get the same performance from a Garrett GT30 series turbo without its OE GT30 turbine housing . I think this is even more so if the Ford style Garrett "T" series turbine housing is an IW one .

I find it a bit hard to believe how GTX turbos would "spool" any better than the GT ones given that they are higher capacity compressor wheels size for size .

I'd have gone with a Pro Stock manifold and one of the twin scroll standard frame type hi flows from CBRD or FP .
Good performance from things that look sort of std get the best cred IMO .

A .

 

Dang... Taking it back to coevo huh?

 

seems like it to me

 

You're probably going to have to make a DP depending on your manifold design. but yes 3'' is a huge gain. also let me suggest you switch to a Precision 5557 instead of the GTX30r. I've never been a fan of garret stuff just because it seems kind of plain and out dated technology