Tippyman

I plan on boosting my D16A6 with a Garrett 50 trim, .42/.48 A/R turbo. My goals are 300 hp. The most I am revving to will be 7500 rpm. Do you think that the turbo will be sufficient? I really don't want a huge turbo because it's a DD car, and I want a really nice powerband.

I tried reading compressor maps but my head started hurting. I figured someone might have some experience here...

Bailhatch

Depends on if you are talking about a T3 or a T3/T4 hybrid. One compressor flows like 27 lb/min and the other around 46 lb/min.

Which turbine wheel you have makes a huge difference too. A stg1 in a .48 is gonna be restrictive at 300whp. A stg3 .48 a/r would be much better for flow and backpressure but will spool much later than the standard stg1 wheel.

Tippyman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote">Depends on if you are talking about a T3 or a T3/T4 hybrid. One compressor flows like 27 lb/min and the other around 46 lb/min.

Which turbine wheel you have makes a huge difference too. A stg1 in a .48 is gonna be restrictive at 300whp. A stg3 .48 a/r would be much better for flow and backpressure but will spool much later than the standard stg1 wheel.</TD></TR></TABLE>

Oh ****. T3/T04E.

The sites I have been looking at do not specify stages in the wheels.

HiProfile

Depending on where your power starts to drop, you'll need between 230-250wtq to hit 300whp. Quite a few stock d16's can hit 220wtq with smaller turbos, so I'd imagine a good 15psi would be more than enough. This turbo can do upwards of 400 on a b18, low-mid 20's for psi.

To give you an idea, people have done 300 with the t3/t04b s-trim with psi in the teens, and it flows ~520cfm @2pr, and the 46 trim t04e wheel can do ~564cfm at the same 2pr. To make a long story short, <u>yes, it will easily do 300 on pump gas, d16 non-vtec.</u>

Tippyman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HiProfile &raquo;</TD></TR><TR><TD CLASS="quote"><u>yes, it will easily do 300 on pump gas, d16 non-vtec.</u></TD></TR></TABLE>

But at what RPM? I don't want to have it drop off early. I plan on reving to 7500. Will it have enough flow in the upper RPM ranges? I don't wanna have my IAT's through the roof.

vtec.dc2

i got the s trim 50 t04b stage 2 wheel .48 a/r.. it takes me 10-11psi to hit 300 and power still rises until 8500rpm.. however, when i had smaller downpipe exhaust and charge piping it made 270whp at same psi..

my turbo should still make power upwards to 350whp if not more.. so you gotta do much more with E trim compressor this is b series vtec 1.8

HiProfile

Unless you have a monster cam, no d16 is going to flow well past 6k, so probably 6500-7k HP will peak. If you want a torque plateau, go dohc vtec. It will probably make full boost before 5k, assuming the title's AR numbers are what you plan on getting.

If it helps any, my d16z6 + t3/t04b s-trim (.48ar stg1 exhaust) hit 10psi before 4k, full 3" dp/exhaust. A slightly bigger turbo with more boost would probably make 300hp w/o much effort.

EJ1 wilcox

I have a Garrett 50 trim .42/.48 and I've been told that it's only good till about 230-250 whp.

If your goal is 300whp, I would definately use a different turbo if I were you.

Tippyman

Well, I'm looking on http://blaastperformance.com/i...rgers for my turbo. They don't even have the 50 trims anymore due to parts availability.

I am really starting to doubt if blaast has waht I need. Take a look at the page and lemme know what you think.

Bailhatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ1 wilcox &raquo;</TD></TR><TR><TD CLASS="quote">I have a Garrett 50 trim .42/.48 and I've been told that it's only good till about 230-250 whp.

If your goal is 300whp, I would definately use a different turbo if I were you. </TD></TR></TABLE>

yours flows about 12lbs/min less than the one he's looking at. t04e not t3 50trim.

tippy, I have built a couple D16Z6s with 50trims (to4e). I dont remember the exact point of full boost but there was deff some good positive pressure before 4k and the pull from 5-7500rpm was pretty brutal.

Tippyman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote">

yours flows about 12lbs/min less than the one he's looking at. t04e not t3 50trim.

tippy, I have built a couple D16Z6s with 50trims (to4e). I dont remember the exact point of full boost but there was deff some good positive pressure before 4k and the pull from 5-7500rpm was pretty brutal. </TD></TR></TABLE>

That's what I want. I think anything bigger will make me unhappy with spool time. Thanks for your input.

EJ1 wilcox

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bailhatch &raquo;</TD></TR><TR><TD CLASS="quote">yours flows about 12lbs/min less than the one he's looking at. t04e not t3 50trim.

tippy, I have built a couple D16Z6s with 50trims (to4e). I dont remember the exact point of full boost but there was deff some good positive pressure before 4k and the pull from 5-7500rpm was pretty brutal. </TD></TR></TABLE>

Oh, right on. Yeah, the T04e compressor should get you there. Although if it were me, I would go with the T3/T04e 50 trim with the .63 ar turbine.

And I bought my turbo from Blaast Performance They have really helped me out in a few different ways. I would definately recommend them for quality, price, and customer service. If they don't have something you want listed on the site, just give them a call, they have a ton of parts and could build you just about anything you want for a reasonable price.

Tippyman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ1 wilcox &raquo;</TD></TR><TR><TD CLASS="quote">

Oh, right on. Yeah, the T04e compressor should get you there. Although if it were me, I would go with the T3/T04e 50 trim with the .63 ar turbine. </TD></TR></TABLE>

If I go with the .63 turbine, won't the spool be much later? Keep in mind it's a low-revving SOHC. I don't want to fall out of boost between shifts.

Hella_Fresh

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tippyman &raquo;</TD></TR><TR><TD CLASS="quote">

If I go with the .63 turbine, won't the spool be much later? Keep in mind it's a low-revving SOHC. I don't want to fall out of boost between shifts.</TD></TR></TABLE>

Tippyman

Tippyman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tippyman &raquo;</TD></TR><TR><TD CLASS="quote">

If I go with the .63 turbine, won't the spool be much later? Keep in mind it's a low-revving SOHC. I don't want to fall out of boost between shifts.</TD></TR></TABLE>

HiProfile

If you're not worried about peak numbers, have a compressor that flows 100hp more than your goals, and want less lag - run a smaller hot side and turn up the boost. A smaller turbine housing will move the power band (torque) down the rpm range, giving you quicker spool, less lag, but less peak hp. Same 'area under the curve', but less top-end.

In other words, a 50-trim t3/t04e, stg3 .48ar exhaust. It will hit 300hp with your built motor, and still give you a decent spool time. 50 trim is now a special order from what I've heard, so if you can't find one stocked, you may even want to go with a 46 trim t04e compressor.