Forced Induction Custom FI Setup Questions

250cc turbo - part throttle boost

Old 09-27-2015, 04:22 PM
  #1  
0.0 BAR
Thread Starter
 
Join Date: Sep 2015
Posts: 1
Default 250cc turbo - part throttle boost

I have a 250cc single cylinder engine in a mini buggy with a rhb31/vz21 turbo on it. Microsquirt controlling fuel and spark, intercooler, BOV, 1 litre plenum.

I'm running the wg at 9psi with some testing at 13psi. Spools almost instantly.

Problem is it boosts to 4-5 psi with very little throttle - around 20% TPS, just cruising around, I'm in boost. This may be the nature of a single cylinder engine but I'd like to find a way to eliminate boost at these part throttle situations. It's heat soaking my intercooler and really not necessary.

I'm thinking of either relieving the pressure via the BOV or the wastegate with some sort of mechanical solution using the throttle location. My first thought was to valve the intake reference vacuum line to the BOV at part throttle conditions and let the boost pressure open it up and escape. The valve would then trigger at a determined throttle position to return to normal operation.

Any other solutions out there that I've missed?

Thanks!
beeps is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mafdark
Turbo Parts For Sale
62
01-09-2009 07:21 AM
trioskater
Forced Induction
27
12-03-2007 07:15 AM
sailman
Forced Induction
3
03-27-2006 04:49 PM
Scottsi
General Discussion
6
05-23-2004 07:44 PM


Thread Tools
Search this Thread
Quick Reply: 250cc turbo - part throttle boost


Contact Us - Sitemap - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.