Page:
Home > Help Needed / General Tech Chat > alternatives to SU intakes restrictor?

andrew_robertson

6 Posts
Member #: 9291
Junior Member

27th Jan, 2011 at 11:21:03pm

Hi All, have scanned the archives and found useful stuff on restrictors to make SU density sensitive for boosted applications.

What I am unclear on is if the restrictor simply serves the purpose of increasing the pressure differential across the jet as boost pressure rises and pressure losses across the restrictor begin to occur. If this is the case I am wondering if I can simply take FPR and fuel bowl boost references directly from the turbo compressor outlet, and let losses through the intercooler and associated plumbing serve the same purpose - I estimate there would be about 1-2 psi losses between compressor outlet and carb.

Anyone tried this?

Cheers, Andrew Robertson, New Zealand


Jay#2

User Avatar

2500 Posts
Member #: 648
Post Whore

Northern Ireland (ex AUS)

27th Jan, 2011 at 11:29:43pm

This was mentioned by someone ages ago but not sure if they tried it out. As you say, use the pressure drop across the intercooler rather than restrictor. I will have a dig.

On 7th Nov, 2008 Nic said:
naeJ
m
!!!!!!sdrawkcab si gnihtyreve ?droabyekym ot deneppah sah tahw ayhwdd


Jay#2

User Avatar

2500 Posts
Member #: 648
Post Whore

Northern Ireland (ex AUS)

27th Jan, 2011 at 11:34:25pm

This might help a bit.

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=513

On 7th Nov, 2008 Nic said:
naeJ
m
!!!!!!sdrawkcab si gnihtyreve ?droabyekym ot deneppah sah tahw ayhwdd


metroturbo

806 Posts
Member #: 989
Post Whore

North Yorkshire

27th Jan, 2011 at 11:36:13pm

If you do a search on here for pitot tubes that may be of some interest to you.

wil_h

User Avatar

9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

28th Jan, 2011 at 07:41:03am

Yes this will work. What you may find is that you'll need a few goes at finding a sweet spot where the differential is right.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.

Home > Help Needed / General Tech Chat > alternatives to SU intakes restrictor?
Users viewing this thread: none. (+ 1 Guests)  
To post messages you must be logged in!
Username: Password:
Page: