to big for a 4.3L?

Reply Subscribe

Thread Tools

Search this Thread

Jun 3, 2006 | 05:17 PM

02Vortech

Thread Starter

TECH Fanatic

iTrader: (4)

Joined: Nov 2005

Posts: 1,078

Likes: 0

to big for a 4.3L?

is this T70 to big for a 4.3L i want full spool somewhere around 2600 to 2800
BTW this is an STS set-up

http://cgi.ebay.com/ebaymotors/Maste...QQcmdZViewItem

Jun 3, 2006 | 07:40 PM

kbracing96

TECH Senior Member

iTrader: (25)

Joined: Jul 2004

Posts: 8,929

Likes: 2

From: Sutherlin OR

I think a T-70 would be too big for a 4.3. Wouldn't spool well at all. Check your pm's I may have something that will work for you.

Jun 3, 2006 | 07:47 PM

Boostaholic

TECH Addict

iTrader: (4)

Joined: Sep 2002

Posts: 2,542

Likes: 0

From: Boise, ID

Quote:

Originally Posted by 02Vortech

is this T70 to big for a 4.3L i want full spool somewhere around 2600 to 2800
BTW this is an STS set-up

http://cgi.ebay.com/ebaymotors/Maste...QQcmdZViewItem

How much power are you looking to make?

Jun 3, 2006 | 07:57 PM

02Vortech

Thread Starter

TECH Fanatic

iTrader: (4)

Joined: Nov 2005

Posts: 1,078

Likes: 0

im looking to make a great street truck- 300whp on methanol - i think i might go with kbracings turbo

Jun 3, 2006 | 08:20 PM

Boostaholic

TECH Addict

iTrader: (4)

Joined: Sep 2002

Posts: 2,542

Likes: 0

From: Boise, ID

Quote:

Originally Posted by 02Vortech

im looking to make a great street truck- 300whp on methanol - i think i might go with kbracings turbo

300hp? What is it making now - you can probably achieve your goals through other means that are far more cost effective than forced induction.

Jun 3, 2006 | 08:27 PM

Typhoon#1600

Staging Lane

iTrader: (5)

Joined: Apr 2005

Posts: 53

Likes: 0

that is not too big for a 4.3L engine if you build a bottom end to hold it. There are plenty of other 4.3's out there running larger than this (myself included), but you can tust throw that turbo in there and expect it to go. Lots of other things that you will need to upgrade to make the engine live past the first stoplight.

Jun 4, 2006 | 11:00 AM

02Vortech

Thread Starter

TECH Fanatic

iTrader: (4)

Joined: Nov 2005

Posts: 1,078

Likes: 0

Quote:

Originally Posted by Typhoon#1600

there are guys on s10forum making 400whp/torque on stock bottom end so i think 300whp is very safe and doable.
i am buying alot of supporting mods before i actually slap a turbo on it- im ordering, walbro fuel pump, AEM wideband, and an AFPR.- i understand there is more to it than just slapping a turbo on it- its going to be intercooled / methanol injected, looking to get a base tune from nelson and then work on it

btw stock whp is 150........---- even with h/c full exhaust guys are hitting high 260's

what about a turbo with these measurments?
.57T COMPRESSOR WHEEL

.50 A/R COMPRESSOR

.63 A/R TURBINE

btw i have found a .68 P-trim turbo that im prolly more inclined to buy than this t-70.

Last edited by 02Vortech; Jun 4, 2006 at 11:21 AM.

Trending Topics

Oil Bypass Barbell

8

177
406 Hydraulic to Solid Roller cam results

13

410
Replacing My LS3 with an LSA Did I make the right choice?

6

223
4L80e loosing line pressure

36

1.1k
Many Camaros Chevys GM at Veteran's Car Show today

4

155

Jun 4, 2006 | 05:08 PM

kwman

Staging Lane

iTrader: (2)

Joined: Oct 2005

Posts: 61

Likes: 0

From: Wilmington NC

lol, ok with a .68 trim turbo or T-70 you're going to make about 300 hp at 5 or 6 psi haha, which is WAAAAAAAYYY below that turbos efficiency range. If I were you, I'd look into something smaller, say a 50 trim BB. You'll have almost instant spool and those turbos are making 400+ hp on 2.0 liters evos left and right. if you only want 300whp, then go smaller and you'll have better response and the boost curve you're looking for. And on higher boost you could go have some fun on the weekends still.