[Syty] Fuel Pump

[DOlivares]

Thanx for the advance-vote of confidence, Jeff,

But so far my experience with Walbros versus stock-Bosches strongly favors the FORMER.  And now that I think about it, every stock-Bosch pump I ever owned has been high on longevity but POOR in providing that nice neck-snapping PRESSURE needed for smooth full-throttle response.

Price-wise, they don't compare well either:  Putting that Walbro 255 in the tank (sans "pulsator") this past Summer only cost me $69 delivered based on a lucky eBay purchase!  That thing will put out over 93psi with my FPR cranked-in all the way-- and before further diaphragm depression from turbo boost!  I'll never go back to Bosch!!  I recommend you don't either.  Be not afraid!  That extra pressure/flow will be there when you most need it... and may well save your pistons during a full-throttle blast in peak-summer weather.  Check out the offerings on eBay under "Syclone Fuel Pump" for the best deals vis-a-vis regular Internet providers of Walbros....

Although I've yet to publish my unique troubles with my "fancy" FPR-- which went BAD on me at the onset of cold weather here last November-- you might want to VERIFY that it is in fact your FP and not the FPR that is causing your woes.  I was struggling to run with only 11psi when I finally broke down and rigged-up my fuel-pressure hose & remote gauge.  I was heartbroken.  All that grief pulling the tank and the Walbro let me down...?  But, the actual culprit was a collapsed FPR diaphragm.  As soon as I switched-in the old mechanically adjustable FPR I used on my T-Trans Am (never throw away your "obsolete" performance parts!) we were back in business... never a speck of trouble since then!  Check out your start-up/idle pressure (no need to start the engine) by CLAMPING THE FUEL-RETURN LINE with a pair of needle-nosed vise-grips or something equally positive-gripping.  If you still get the same low readings IT IS THE PUMP.  But, if the pressure goes north of 40psi, you've just saved yourself a lot of money and/or acrobatic labor!

Good luck,

Dennis O.
--------------------------------------------------------------------------------


----- Original Message ----- 
From: Jeffrey Smirz 
To: syty at syty.org 
Sent: Monday, April 17, 2006 8:03 PM
Subject: [Syty] Fuel Pump


The Ty's OEM pump is down to about 25 psi.  The poor thing barely runs.  I'm pumping and pulling the tank tomorrow.  There was a lot of talk about Walbros in Feb. '05, but I'm not planning on racing, except the occasional stoplight Grand Prix.  I'm leaning towards a Bosch replacement pump.  Advice is welcome.....particularly if it comes from the one and only serovilo, grtyphoon, bullyhart, merk1993 or any of the other great contributors.

Jeff
Syclone #950 (totaled in '99)
Syclone #1654 (formerly Chris Pearson's)
Typhoon #1165
Indy, IN




--------------------------------------------------------------------------------


_______________________________________________
Syty mailing list
Syty at syty.org
http://lists.syty.org/mailman/listinfo/syty
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.syty.org/pipermail/syty/attachments/20060418/14395435/attachment.html