 Walbro 255lph Question |
 May 10, 2011 - 10:04 PM
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Enthusiast  Joined Aug 15, '10 From Nevis, West Indies Currently Offline Reputation: 0 (0%)  |
I have a ST205 Celica, no power mods other than basic intake and exhaust work, will buying a walbro 255lph pump cause me to run rich?
or will I see any improvements in any rpm range? -------------------- 1994 Toyota Celica GT-Four ST205 Turbo 4WD, Black
Nevis, West Indies |
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Replies
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May 11, 2011 - 1:16 AM
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 Enthusiast Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) |
Intank pump upgrade wont do anything different unless your factory one is worn out or broken. I don't know how many LPH the ST205 factory pump is but it's obviously fit to feed the factory 540cc injectors at standard pressures. Only reason to upgrade intank is if you plan to upgrade your injectors or your factory pump is worn out and want a cool buzzing noise every time the cars running.
Surge tank + external however will give you benefits of preventing fuel starvation during hard cornering and give you a base to upgrade your injectors should you choose to do so in the future. -------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
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May 11, 2011 - 11:59 PM
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Enthusiast Joined Aug 15, '10 From Nevis, West Indies Currently Offline Reputation: 0 (0%) |
QUOTE (delusionz @ May 11, 2011 - 1:16 AM)  Intank pump upgrade wont do anything different unless your factory one is worn out or broken. I don't know how many LPH the ST205 factory pump is but it's obviously fit to feed the factory 540cc injectors at standard pressures. Only reason to upgrade intank is if you plan to upgrade your injectors or your factory pump is worn out and want a cool buzzing noise every time the cars running. Surge tank + external however will give you benefits of preventing fuel starvation during hard cornering and give you a base to upgrade your injectors should you choose to do so in the future. Not really building for circuit racing, more of a 1/4 mile car I'm building, so the surge tank won't be of much use here, So then theoretically it should be safe to boost around 14-15psi on the stock CT20b turbo? with no fuel upgrades? I am planning to get a AEM wideband sensor with guage so I can monitor what my fuel is doing, just trying to avoid ever leaning out at all costs. -------------------- 1994 Toyota Celica GT-Four ST205 Turbo 4WD, Black
Nevis, West Indies |
Posts in this topic
cax_11 Walbro 255lph Question May 10, 2011 - 10:04 PM
nsxtypeR The st205 always run way too rich, so no benefits ... May 10, 2011 - 11:32 PM delusionz When I upgrade my fuel system I'm going to use... May 10, 2011 - 11:54 PM BriinumsBo would there be any difference as the stock FPR wil... May 11, 2011 - 12:58 AM
BriinumsBo probably FPR is your answer, im currently looking ... May 12, 2011 - 2:31 AM
delusionz due to the nature of the head and manifold design ... May 12, 2011 - 5:38 AM |
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