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boost

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=103278
Printed Date: 31 Oct 2024 at 8:07pm
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Topic: boost

Posted By: 200 allis
Subject: boost
Date Posted: 15 Mar 2015 at 11:39am

What should be a round about boost pressure on 301 with holset hx35 with waste gate tied shut and 12cm exhaust housing

Replies:

Posted By: rowcropmafia
Date Posted: 15 Mar 2015 at 6:06pm

When i ran a setup like that it was running in the range of 45-50 lbs with a good cam

Posted By: O.P.S. Heads
Date Posted: 15 Mar 2015 at 10:24pm

Depends on the amount of fuel delivered. If you are at 250cc's the boost will be lower than if you have 300 cc's for example - everything else being the same.

Posted By: AC200Puller
Date Posted: 16 Mar 2015 at 9:29pm

I am running 410 cc's of fuel and getting 50lbs of boost.

Posted By: rowcropmafia
Date Posted: 16 Mar 2015 at 9:59pm

When I was running that setup I was running around 350 cc of fuel limited to 3000 rpm. That turbo setup worked very well for me. Seemed to let the motor lug well while hanging on to the top end. I think if I remember right mine had a 8 blade compressor wheel on it I think there is a 6 or 7 blade wheel that is supposed to be more efficient although I don't know a lot about that there are others on this site who know a lot more about turbos than me

Posted By: O.P.S. Heads
Date Posted: 16 Mar 2015 at 10:03pm

It seems you have answered your own question. Is this open RPM or limited? Inline or rotary pump?

Posted By: AC200Puller
Date Posted: 19 Mar 2015 at 6:27pm

Boost means nothing if you are not flowing air.