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pulsarboby
Guest
on hard cornering, especially lefthanders, fuel surge is basically fuel starvation even though tank is baffled.kenan said:
you have to carry in excess of half tank of fuel to avoid this, unless you have a swirlpot or similar fitted.
major problem on track gtirs
well here in japan. my pulsar doesn't reall get alot of track time. mainly because everyones into the drifting thing. but it does very well on mountain pass racing aginst GTR's, EVO's, WRX's, 180/Silvia's RX7's etc...dispite the cars understeer problem. mainly i just adapted to it and bought alot of whiteline stuff. some of the car i really have a tough time with are the ligheweight hondas(civic/ interga).
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That's normally the symptoms of an incorrectly fitted uprated fuel pump using a non standard pick-up sock. The socks that come with Walbro pumps are too short and don't reach the lowest part of the tank, you have to adapt the OEM sock from the standard pump to fit the new pump and fit it back into the standard position. Although not 100%, specially on those long hard corners on a track when really pushing the car, this should cure 99.9 % of any fuel surge problems you might get.pulsarboby said:
No it doesnt, well not when your conering in competition which belive me is much more extreme then you would out on the road ( you would be arrested in 5 mins if you drove the car like that )
Plus if you look in the OEM item the pipe does not extend much longer its just the sock is longer with wiring in it to hold it apart.
I am looking at a few ways around this problem will post up the idea I have if it works.
Cheers
Phil
Plus if you look in the OEM item the pipe does not extend much longer its just the sock is longer with wiring in it to hold it apart.
I am looking at a few ways around this problem will post up the idea I have if it works.
Cheers
Phil
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pulsarboby
Guest
you are right with what you say about fitting the aftermarket sock, but on track as bracpan said, it will make no difference!stevepudney said:
you really do have to carry in excess of half tank of fuel without some sort of swirlpot as the cornering speed when racing is much more aggressive than fast road or normal trackday driving.
without a swirlpot the only other option is a foam filled tank, or race fuel tank.
bracpan! this may interest you, i havent got the website but in japan theres a firm called ATTAIN, i have bought one of there systems s/h off someone on this site.
it it basically an 8''x6''x3'' alluminium box which houses a small but very powerfull walbro pump, which connects inline on fuel run under your bonnet, it is basically a highly pumped swirl pot but in a small package and easier to mount.
it does not do away with the main pump and fuel setup, it just keeps pressure to the fuel body at all times even if the car was upside down it would still supply fuel:lol:
i dont know how to post pictures on this site, so if somebody can explain to me how! in simple language, then i will put some piccies up of it, as it may be of benefit to a lot of peeps on this site who enjoy trackdays or who are looking at doing competitive racing
Interesting read :-Dpulsarboby said:you are right with what you say about fitting the aftermarket sock, but on track as bracpan said, it will make no difference!
you really do have to carry in excess of half tank of fuel without some sort of swirlpot as the cornering speed when racing is much more aggressive than fast road or normal trackday driving.
without a swirlpot the only other option is a foam filled tank, or race fuel tank.
bracpan! this may interest you, i havent got the website but in japan theres a firm called ATTAIN, i have bought one of there systems s/h off someone on this site.
it it basically an 8''x6''x3'' alluminium box which houses a small but very powerfull walbro pump, which connects inline on fuel run under your bonnet, it is basically a highly pumped swirl pot but in a small package and easier to mount.
it does not do away with the main pump and fuel setup, it just keeps pressure to the fuel body at all times even if the car was upside down it would still supply fuel:lol:
i dont know how to post pictures on this site, so if somebody can explain to me how! in simple language, then i will put some piccies up of it, as it may be of benefit to a lot of peeps on this site who enjoy trackdays or who are looking at doing competitive racing
Boby, to post a picture. If the picture you want to post is on your PC then you can post the picture as an attachment, all you have to do is, go to reply to a post as normal (make sure your in the advanced reply window that shows the smilies to the right). Then scroll down the page a little and you will see a "manage attachments" button, click this and a smaller window should open, at the top of this window you will see 5 spaces, each with it's own browse button, if you click the top browse button you will then be able to navigate to the picture on your pc, as long as the picture isn't to big you will be fine. Then click the upload button, close the small attachments window and that should be it, if all was ok then you will see a small thumb nail picture in your post.
If the picture you want to post is on a website, then click the button above the reply txt box that has a small pic of a landscape on a post card on it 9next o the envelope) and paste the web page address of the picture in the box that opens when you click the button and post that.
If not then email me at steve@gtiroc.com with the pictures and I will post them up for you.
I would be interested to see the pic's
Steve
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pulsarboby
Guest
cheers steve, nice and simple, thats how i like it:-D as im pretty dim with pcs!
anyway, hopefully here are photos of this in pumped swirl pot which will be of particular use to bracpan and any other trackday loonies on this site.
ive not fitted it yet, so cant give any feedback on it, but in principle it sounds like a very good idea and should completely eliminate the dreaded fuel surge, which can muller your sweet engine in a very short period of time
no its not having it steve! it said the file is 666kb and 117kb is the max allowed:sad:will email them to you steve and see if you can do anything with them!
anyway, hopefully here are photos of this in pumped swirl pot which will be of particular use to bracpan and any other trackday loonies on this site.
ive not fitted it yet, so cant give any feedback on it, but in principle it sounds like a very good idea and should completely eliminate the dreaded fuel surge, which can muller your sweet engine in a very short period of time
no its not having it steve! it said the file is 666kb and 117kb is the max allowed:sad:will email them to you steve and see if you can do anything with them!
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Here you go
Attachments
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pulsarboby
Guest
how did you get them on there, as email was bouncing:?
;-)pulsarboby said:
Good day everyone !
I just got that piece of shiny bit.... any one reads Japanese or can someone tell me what to plug where ?
From the picture and me ticking for a few minutes, how about:
- top left nipple: breather (not sure about this one)
- center left nipple: fuel feed
- bottom left nipple: fuel return
- right nipple is the one going to the fuel filter, and out to the rail ?
whould that make sence ?!
I'll post pics once installed, but need your help rapidly. Thanks !
--McDave
I just got that piece of shiny bit.... any one reads Japanese or can someone tell me what to plug where ?
From the picture and me ticking for a few minutes, how about:
- top left nipple: breather (not sure about this one)
- center left nipple: fuel feed
- bottom left nipple: fuel return
- right nipple is the one going to the fuel filter, and out to the rail ?
whould that make sence ?!
I'll post pics once installed, but need your help rapidly. Thanks !
--McDave
jjs
Member
take the lid of the swirl pot should be obvious from there ,normaly have a supply, which will come fron the pump you fit, to injection system and a return, which can either go to main tank or swirl pot, a breather ,and a return to a main tank if you are using one,i have one fitted to my autocross car, and not had any problems, the one i got has fittings for twin pumps, in the swirl pot,(bought it from yellow weapon on the modifiers site good piece of kit)
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pulsarboby
Guest
paul aka k9ng has one fitted and i also!
with these units you only need to connect the flow and return to the rail the other connections are not needed as it has an inbuilt pump running in line, so either loop or blank the other outlets and it will work fine.
if you find that the pump is really noisy then swap the power connections over! the blue or neg connection on mine is actually the main live if you connect the other way round the pump runs very noisily, so make sure its working in conjunction and not against the existing pump.
with these units you only need to connect the flow and return to the rail the other connections are not needed as it has an inbuilt pump running in line, so either loop or blank the other outlets and it will work fine.
if you find that the pump is really noisy then swap the power connections over! the blue or neg connection on mine is actually the main live if you connect the other way round the pump runs very noisily, so make sure its working in conjunction and not against the existing pump.