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to big for a 4.3L?

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Old 06-03-2006, 05:17 PM
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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
Old 06-03-2006, 07:40 PM
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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.
Old 06-03-2006, 07:47 PM
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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?
Old 06-03-2006, 07:57 PM
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im looking to make a great street truck- 300whp on methanol - i think i might go with kbracings turbo
Old 06-03-2006, 08:20 PM
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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.
Old 06-03-2006, 08:27 PM
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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.
Old 06-04-2006, 11:00 AM
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Originally Posted by Typhoon#1600
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.
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; 06-04-2006 at 11:21 AM.
Old 06-04-2006, 05:08 PM
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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.




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