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+--- Thread: Stalls when coming down from revs (/showthread.php?tid=34464)
Stalls when coming down from revs - Paul_13 - 04-07-2016
I've got the fueling up quite high and the revs adjusted to match
But for some reason when it's revved hardish it'll cough and stall when it comes back to idle
Its an 11mm pump btw
Any one any idea?
RE: Stalls when coming down from revs - Danny Wideboy - 04-07-2016
Fuel filter a new 'un?
Running any veg?
RE: Stalls when coming down from revs - Paul_13 - 04-07-2016
Fuel filter is new and yes pretty much neat ve, might of answered my own question there
RE: Stalls when coming down from revs - Danny Wideboy - 04-07-2016
I always run 10% petrol with my veg, even in summer. Thins it down and burns better IMO.
RE: Stalls when coming down from revs - darrenjlobb - 05-07-2016
Neat veg is very viscous when its cold, the GOV in the VE is of a centrifugal type, its just simply that it cant move fast enough to compensate for the dropping rpms in the thick fuel....so it dies before it gets chance to add IQ.
RE: Stalls when coming down from revs - Paul_13 - 05-07-2016
Cheers guys
RE: Stalls when coming down from revs - Dave - 08-08-2016
tighten your anti-stall on the back of your pump - I had this issue but can be solved with this. Drop the overall fueling slightly and add it elsewhere like LDA etc
RE: Stalls when coming down from revs - Paul_13 - 08-08-2016
I need to turn the fuel screw up more, it's boosting clear at the moment. Seems to be getting plenty of air to it
The pump I'd say is probably 1 turn from max
The lda has got a proper harsh grind on it so can't add any more apart from grinding the inside of the head
RE: Stalls when coming down from revs - Paul_13 - 08-08-2016
What bigger/better delivery valves could I fit?
It's an 11mm pump btw
RE: Stalls when coming down from revs - zx_volcane - 08-08-2016
(08-08-2016, 11:15 AM)Paul_13 Wrote: What bigger/better delivery valves could I fit?
It's an 11mm pump btw
i don't think delivery valves make a diff tbh
although terrano II valves are slightly less of a restriction - if they are a restriction at all that is.
RE: Stalls when coming down from revs - Paul_13 - 08-08-2016
OK, I remember reading about them in another thread and someone did mention they were a bolt on upgrade for a 9mm pump. I think I know of a few
RE: Stalls when coming down from revs - Dave - 18-09-2016
(08-08-2016, 11:52 AM)zx_volcane Wrote:(08-08-2016, 11:15 AM)Paul_13 Wrote: What bigger/better delivery valves could I fit?
It's an 11mm pump btw
i don't think delivery valves make a diff tbh
although terrano II valves are slightly less of a restriction - if they are a restriction at all that is.
Delivery valves made a huuge difference to me, the stock ones have a super pissy channel down the side, where as 11mm transit / DI / custom ground
ones that have more meat taken out the edge flow much better.Grinder + stock valves, shave them back but leave the sealing surface on the front. Will try dig pics.