Turbo guys i need some info on fuel stuff!

[TT SHO PROJECT]

ok heres my first question.. what size(flow i mean) fuel pump should i get Just for starts and Not one that will over power the stock FPR! with my current setup ill top out around 350hp now i know the stocker injectors wont go that high but for now i need a fuel pump that will flow enough for 350-400hp IF posible with out over running the FPR......

ok now heres my other question... this is ONLY for the TURBO guys who Vent there bovs!

ok sometimes when boosting it onto the freeway after i hit 4th gear if i boost it real fast and let off then tap it again flames come out the exhaust does this happen to any of you turbo guys out there??? i know it happens to the blower guys when slowing down thats why i said Only for the turbo guys! ok im done here thanks for any help you can give me.

-Bob

 

[yamahaSHO]

ok heres my first question.. what size(flow i mean) fuel pump should i get Just for starts and Not one that will over power the stock FPR! with my current setup ill top out around 350hp now i know the stocker injectors wont go that high but for now i need a fuel pump that will flow enough for 350-400hp IF posible with out over running the FPR......

190lph pump is about as high as you can go on the stock regulator, however, it still over-runs the FPR. Since the SHO's stock fuel lines are a tad on the small side for big power, you'll actually need a rather large pump to compensate.

ok now heres my other question... this is ONLY for the TURBO guys who Vent there bovs!

Vent where? Atmosphere or back into the intake? The BOV is going to vent somewhere, but you didn't specify.

ok sometimes when boosting it onto the freeway after i hit 4th gear if i boost it real fast and let off then tap it again flames come out the exhaust does this happen to any of you turbo guys out there??? i know it happens to the blower guys when slowing down thats why i said Only for the turbo guys! ok im done here thanks for any help you can give me.

-Bob

It doesn't happen to me. You (or whoever you saw) may want to start looking at tuning and/or MAF placement. Since you didn't state where you vent your BOV, we can only speculate. I'm guessing you vent your BOV to the atmosphere and have the MAF before the turbo? In this case, you're most likely measuring air, then wasting it causing a rich mixture to head through your exhaust.

Yes, I know I don't have a turbo SHO...

 

[TT SHO PROJECT]

Vent where? Atmosphere or back into the intake? The BOV is going to vent somewhere, but you didn't specify.

yes when i say vent i mean to the atmosphere.... and yeah the mafs Before the turbo on the inlet.. and this is my car im talking about..... just wundering about the flames out the tail pipes since i dont have my maf After the turbo i thought it was kinda odd. but cool at night for who evers behind me lol.

so 190lph is the my best bet? whats the stocker like 110 or somthing? (just guessing)

 

[yamahaSHO]

yes when i say vent i mean to the atmosphere.... and yeah the mafs Before the turbo on the inlet.. and this is my car im talking about..... just wundering about the flames out the tail pipes since i dont have my maf After the turbo i thought it was kinda odd. but cool at night for who evers behind me lol.

so 190lph is the my best bet? whats the stocker like 110 or somthing? (just guessing)

You're most likely shooting flames for the reason I gave above. You're pulling air through the MAF without too much time for the turbo to spin down (since you're goosing the throttle again) and venting out metered air. Since the metered air is not making it through the motor, you're now flowing a fuel-rich mixture out of your tail pipes.

Stock is around 112lph, IIRC. IMHO, I'd just take the hit and get a proper FPR and a larger fuel pump.

 

[TT SHO PROJECT]

You're most likely shooting flames for the reason I gave above. You're pulling air through the MAF without too much time for the turbo to spin down (since you're goosing the throttle again) and venting out metered air. Since the metered air is not making it through the motor, you're now flowing a fuel-rich mixture out of your tail pipes.

Stock is around 112lph, IIRC. IMHO, I'd just take the hit and get a proper FPR and a larger fuel pump.

yeah i want too get a 255hp walb pump and a good fpr But im a poor poor jobless bum so im doing things lil by lil as i can aford it so im Trying my best to keep the Money spending to a min.

 

[yamahaSHO]

Well, to avoid having to buy two pumps (190lph now, 255lph later), I'd just plan it out and put a little money aside so you do it right the first time, and don't have to buy two fuel pumps. In the long run, it will probably save you more money in avoidance of blowing up the motor. I think it was six months from the time I decided to supercharge til I had my SC running on my car.

Just my $.02.

 

[SHOwned213]

i would say 190lph is suitible, thats what im running on the stock fpr, and it hasnt givin' me any probs, turbo has been on it for about a year as well.

 

[TT SHO PROJECT]

Well, to avoid having to buy two pumps (190lph now, 255lph later), I'd just plan it out and put a little money aside so you do it right the first time, and don't have to buy two fuel pumps. In the long run, it will probably save you more money in avoidance of blowing up the motor. I think it was six months from the time I decided to supercharge til I had my SC running on my car.

Just my $.02.

You know man thats Exactly how i think... if i get the best of the best right off then it will save me money in the long run... you are right about that.... soooo how much is a good adjustable fpr for our cars then? i know the 255 pump is cheap (i can get them for a tad over 100 bones) ill see what i can manage if i can sell some parts or engines that i have laying around maybe i can get everything i need for a 500hp beast (minus the bigger turbo of course) hehe.

-Bob

 

[TT SHO PROJECT]

i would say 190lph is suitible, thats what im running on the stock fpr, and it hasnt givin' me any probs, turbo has been on it for about a year as well.

well this too is good news for me... depending on what i can aford... glad the 190 is working for you with that big t-04 u got there it should work grate with my small 16g mitsu well i will have to see what i can aford if i cant get a fpr and a pump ill just get the 190lph but if i can get both id get the 255 pump

-bob

 

[yamahaSHO]

An adjustable FPR that comes with everything you need to hook it up to your SHO is about $240 from www.shonutperformance.com, IIRC.

 

[TT SHO PROJECT]

An adjustable FPR that comes with everything you need to hook it up to your SHO is about $240 from www.shonutperformance.com, IIRC.

240 BUCKS?!?!?! holy crud batman! i can get one for my stang for 20 bucks lol tats crazy... but hey if i can score the cash ill get the right parts... if not i gotta go the cheap rout.

 

[yamahaSHO]

I take that back, it's $230.... http://www.shonutperformance.com/FPR.htm

 

[TT SHO PROJECT]

I take that back, it's $230.... http://www.shonutperformance.com/FPR.htm

LoL well thats Much better! hehe. hey every cent counts!!! gotta be able to Put some gas in my take ya know! HA!

 

[Toolman]

Yes, Jason covered all points. A little ****** now and then is cool! Let it burn let it burn!

 

[TT SHO PROJECT]

Yes, Jason covered all points. A little ****** now and then is cool! Let it burn let it burn!

Haha yeah i agree i do think its cool every now and then infact i had installed some spark plugs into the tail pipes of my 71 340 duster i had a blast at night shooting 3 foot flames out the tail pipes! one good rev a pull of the choke and a flick of a switch made for a nice fire show! yeah yeah fire FIRE!!! BURN!!! MUUUHAHAHAHHAHAAHHAHAAAA!! lol. im ok really.... i am i sware!