project89

iTrader: (1)

he is tunned a lil rich 11.5 afrs but i he is prolly around or just over 300 crank hp which is just about right for that size injector

with his new afpr he could unscrew the gauge and run a line up to the windshield and put the guage on the end of that to check it , but i doubt he is having an issue, i ran a stock fuel pump into the 12's he has a walboro 255 so he really shouldnt have fuel issues, but then again i would trust a good stock pump over an aftermarket pump, i have seen aftermarket stuff be faulty out of the box

i know ppl have done it but spraying preturbo with and intercooler in the system typically isnt a good idea.u risk having the methanol puddle in the intercooler . which usually dosent hurt anything but one good backfire threw the intake could be an explosion waiting to happen


not to mention to spray pre turbo u need a super fine mist so ur not bombarding the compressor wheel with big droplets that will eventually erode the wheel which most nozzles wont give u a good mist until they get up around 50 psi, and most should be around 60-80psi


being as most of use use cheap offbrand knockoffs i usually suggest to not do anything with them that can cause extra wear on them. in doing so they last a while. but start pushing them and u eat them up pretty fast

Gumby

Any time DC becomes an issue I member a "stock" turbo build in HotRod where to get the proper fuel they used numbers matching marine grade injectors for the better DC and to keep it a stock build. As marine grade parts are of better quality across the board.

southbay08

If you decide to purchase injectors from us, we have new Bosch Green Giants, keep in mind that all tgo members receive a 10% discount

34blazer

how about modifying injectors?

southbay08

Absolutely! We have a custom resizing service. (modifying)

fasteddi

iTrader: (2)

What can you do with the injectors I have?? Price and such. How much more flow can you get out of them. There 28lbs GN ones.

I just think that my next large purchase would be the alky injection. Mainly since I dont see myself going crazy on the boost levels for a bit till I know its all safe. 12-13psi is still a rush.


Also, I though that because my MPFI is double fire and not single fire like the GN's that it take more injector on my car to make the same HP a GN(SFI) made with the same injectors?? I just remeber something like that being said a few months ago on this thread. Dont quote me as Im probly wrong.


But really look at the log and its not going crazy high on the injec DC excepy one area. Its where I shifted into 2nd and 3rd MANUALLY and had the Rpms hit 6k Rpms, which Ive never done before.

Its definitly not the fuel pump I know that. Remember before my stock fuel pump took a crap? I was maxing those injectors out with 10psi, and eventually killed the thing.

But anyways...I know I need some larger injectors. The Fuel pressure is set to 55psi without the reference on. So I really dont wana crank that much more. Its about what.....78psi of fuel pressure at 13psi of boost?? lmfao

project89

iTrader: (1)

if it fires the injector 2 times per ignition event per cyl it just cuts the pulse width in half for each injector event

like my ms system i can select the firing mode

i can fire all 8 injectors at once at full pulse width
i can fire all 8 at once 2 times at half pulsewidth
i can fire 4 at a time with full pulsewidth
or i can fire 4 at a time with half the pulse width 2 times

i can go even further then that and fire then 1-2-4-8 times per cyl firing

i stick with alternating banks and 1 squirt per bank this keeps the fuel presure even in the fuel rail


the v6 should fire bank to bank with 1 squirt at full pulsewidth unless the code 59 changes that


deff go with the methanol first, i bleive the modify service is cheap compared to buying new injectors but u will have to wait to hear back form southbay for the cost


the quote i got to modify my 65# injectors to flow more was very cheap but i dont know if diff style injectors have different rates when they are modified

Six_Shooter

iTrader: (2)

The '7730 has a single injector driver and fires all injectors at once.

The '7749, which has two injector drivers also fires all injectors at the same time, just that the injectors, (depending on how it's wired) just splits the load of the injectors between the two drivers.

project89

iTrader: (1)

interesting i didnt know that, so is the 302 maf system the only one that goes bank to bank?

Six_Shooter

iTrader: (2)

I haven't had one in my hand, but I would suspect that they too fire all injectors at the same time.

RBob

iTrader: (1)

No, it too does batch fire.

RBob.

RBob

iTrader: (1)

The GN being SFI does help in the duty cycle department. Provides about a milli-second more fuel time per two revolutions. And they typically don't rev as high as you are taking the 3.1.

Consider the Alky Control system for the alcohol injection.

RBob.

southbay08

What kind of fuel are you going to be running? E85, methanol?
Regarding the sizing of your injectors, I can probably get them up to approx 40-42lb, however do you have a ballpark as to how much horsepower you are going to be running? What injectors do you have now?

www.southbayfuelinjectors.com
516-442-4707

fasteddi

iTrader: (2)

Just pump gas(93) Alky injecton in the future.

300-325 hp is what Id like to support. Its a turboed application.

The injectors I have are LC2 28lbs ones from a grandnational.

project89

iTrader: (1)

fast u already have around 300hp at the crank
u need something in the 42-50# range
325ish hp u will only need around a 32-35# injector

southbay08

if you are turboed, using a .6 bsfc and between 300 and 325 hp you can probably go with 36lb-40lb

fasteddi

iTrader: (2)

What a work week its been, I cant wait for friday night!!

Ive got a question for anyone, on my $59 there is boost control based on MPH and RPM. Not what I kindof need to find out before friday is this:

In the bin file it says taht the 70 and 80mph values should be the same because it will never reach 80mph. Heres what I want to do. Set the boost lower(about 10psi) for above 80mph for the end of the race track. Now if I set the boost to 10psi at 70 and 80mph is that actually 70+mph that the boost will be changed? Its suppose to be 90* this weekend and you all know my intake temps get a little highSo I want to drop the boost at the end of the track when they start getting up there.

The reason I question the boost table is because it says the 80mph value will never be reached? Why is that and can anyone explain that table better?

RBob

iTrader: (1)

They used the MPH * 3.2 variable for the table look up. That variable is limited to 70 MPH in the code. This is with v18-4, from what I can tell.

I also see that the XDF definition for that table has changed between code versions 18 & 25.

RBob.

fasteddi

iTrader: (2)

Oh thanks as always for your knowledge Rbob. I just wanted to make sure I had a somwhat decent understanding of it.

fasteddi

iTrader: (2)

I made it into the 13's easy! Heres the timeslip 13.70@99.36 This was the best pass of the day and it was quite hot out. That egr valve leaking was definitly the problem!


Ill link up some videos and stuff later.

fasteddi

iTrader: (2)

Here Dave, I think you'll appreciate this. Since I hit the 13's I think its deserving.

Six_Shooter

iTrader: (2)

NICE!

fasteddi

iTrader: (2)

Heres 2 videos from eliminations, the first was a 13.82 on the brakes to win, the second I went -.015 red and lost, let off at the top end of the track(peddling) practicing the finish line agenst that mustang.
http://www.youtube.com/watch?v=WY3dlu5nVMI
http://www.youtube.com/watch?v=oSNDeJ9d2sE

EDIT: Heres the 13.70 pass on video. Thing of beauty. Let me knwo what you guys think. http://www.youtube.com/watch?v=0CAqB8cSrBI

project89

iTrader: (1)

haha i love it, wont be long before u have the car into the 12's

fasteddi

iTrader: (2)

Its almost friday again. Finally I need a break from work. Heres another pic from last weekend. Love this lil V6!!

Gumby

Whats the tech inspection like there?

someone on another site wasing going on how more then 6in of rubber fuel line anywhere it will get you booted off the track, yet factory there is a good ft of rubber for each of the feed and return under the hood between engine and frame.

Im guessing FI rated hoses don't count, its people with a mile of cheap rubber on a carb engine???

fasteddi

iTrader: (2)

The track tech isnt too bad as long as your not faster then a 11.99. Just need a helment, pants, driveshaft loop and car must be "safe"..lol if you make 13.99 and under

I riped off a best of 13.36@102 mph this weekend. Really I ran 13.50 or under all weekend. Im loving this car so much right now. Only if I could get my reaction time right I would have went rounds tonight at the track. I dialed in a 13.50 and ran a 13.500!! Dead on with a zero and lost because of my RT. I fell asleep at the wheel!!! LOL I did get a nice lil 3 inch tach in there and as you can see my times are much more consistant now.

DAMMM, look at that redlight.. opps that was just time trials anyways so who cares. I went 13.36!! With ease at 12.5psi command.

project89

iTrader: (1)

congrats any video?

fasteddi

iTrader: (2)

sorry man..... no vids my camera man couldnt make it out.

Ohh and just to add that 13.36 pass was fast but those injectors are to the max now!! Badly. This is only 12.5psi?? wtf? That leak I had really was holding me back before. God, now I need injec. forsure so insted of playing arround im going to get some later on this week. 42lbs should be sufficient for this cars set up. And Im thining those wont be too much harder to tune the in. Those support about 350+ Hp correct? Ill never make more then that with that stock bottom end im sure. Im not looking to blow her sky hi...lol

project89

iTrader: (1)

see if there is aprice difference between 42's and 48 or 50's if not buy the larger injectors

the turbo u have now wont make enough power to wound the stock bottom end
not to mention u are keeping the rpms down so its even less of a risk

fasteddi

iTrader: (2)

yea good point. I gotta wait for my check this week, then contact south bay AGAIN and actually buy some this time.

I woundnt think that turbo would support much more then 350hp tops right? I bet im at a sold 300hp now pushing those 101+mph trap times.

fasteddi

iTrader: (2)

Also I know Ive entertained this idea a few times but can we go over it again?? Water to air intercoolers... Now Do I really need a heat exchanger coil? Or would the intercooler itself, a water pump and a side storage for ice water be sufficient? Dont ream me out as im just asking agian. Have a friend with the inter cooler itself and is basically selling it for next to nothing. 3" outlets so id need new couplers too.

This is basically what he has laying arround

Six_Shooter

iTrader: (2)

The external exchanger is what really does a lot of the work. Even if I were to use ice water, I'd still use a front mounted heat exchqnger.

fasteddi

iTrader: (2)

Ok ya i was thinking that too but just had to ask, what about a pump size?

project89

iTrader: (1)

u can buy all the stuff on ebay cheap, and six is right heat exchanger keeps the temps cool. cars with only an ice water tank are usually drag only cars

in ur case ur talking a 10 gallon water tank in the trunk , heat exchanger upfront pump and lines + the intercooler

while w2a intercoolers work great , i feel they are best reserved for track only cars

u would spend less money on a methanol injection kit , and with the meth u would get ur much lower air temps

fasteddi

iTrader: (2)

I couldnt fine the right meth stuff on the net. I got a little lost on what is what for nozzles and pumps. I need a in-exspencive but yet works well kit/parts.

project89

iTrader: (1)

do u have to get u links for all the meth stuff?

fasteddi

iTrader: (2)

na not anymore. I cant remember where they where at...

http://www.ebay.com/itm/Alkycontrol-...0e26bb&vxp=mtr
http://www.ebay.com/itm/Water-methan...9993f5&vxp=mtr
http://www.ebay.com/itm/water-methan...adf2ed&vxp=mtr
http://www.ebay.com/itm/water-methan...764f38&vxp=mtr


What all parts would I need, I have a pump, nozzle, silenoid, the hose listed above. Would I really need a tank? Or could I just use a washer tank thats on the car already. This is not a DD so I would keep it topped off for track time. Im still in the air as of what nozzle size id need. Stuff is racking up to be as much as a 300$ kit quickly.

project89

iTrader: (1)

no need for the soiliniod just run a one way check valve

good pump, good line in ur links
get the nozzle from mcmastercarr its only 4 bucks

only thing ur missing is a hobbs switch to activate the system

fasteddi

iTrader: (2)

where do i find the hobbs switch?

what size nozzle for est:300hp?

Is the washer tank ok to use to save a few bucks.

project89

iTrader: (1)

yeah u can use the washer tank, ebay has hobbs switches let me dbl check on the nozzle size for ya

project89

iTrader: (1)

Small Nozzle
P/N 3178K75 says good upto 300 hp

Medium Nozzle
P/N 3178K76 good for 200-450hp

buy both and start with the small one it will be 8 bucks for both nozzles


http://www.mcmaster.com/

edit just dbl checked there catalog they are 8 bucks each now but u still get both nozzles cheaper then one coolingmist nozzle

fasteddi

iTrader: (2)

Cool that is affordable, so the 2 nozzles just incase, that pump i linked, that hose I linked, and a check valve. And a switch. Thats all? Not bad on $$ then. Im going to start ordering here later tonight.

project89

iTrader: (1)

yeah i dont think u will need the medium nozzle but sinc eu can get the small and medium for less then the coolingmist nozzle it wouldnt hurt to have both

oh yeah dont order that nylon line the mcmaster car nozzles dont use those quick connect fittings , u will end up using barbed hose fittings from the parts store so id wait till u get the nozzles and pump to see what u will need for line and just buy it locally

fasteddi

iTrader: (2)

Is this the switch your talking about? Im going to pull the trigger on that if its correct and the pump, and nozzles if so? Let me know.

http://www.ebay.com/itm/Boost-Pressu...bfb2e7&vxp=mtr

Also look at the description. Does that PSI rating of the thing work on boost pressure or the alky pressure?

EDIT that pump i linked is for a snowmobile application..lmfao

project89

iTrader: (1)

thats the right switch u want the 2-24 psi switch and u would set it to turn on at 9-11 psi

haha i just looked at that pump again it looks ot be a 6 volt version of the big pump

cheapest pump on ebay
http://www.ebay.com/itm/Water-alcoho...a3f023&vxp=mtr


since that pump has the 1/4 inch quick connects go ahead and get the line u linked to

u will need to buy a quick connect fitting to screw into the nozzlee though , i think the fittings are like a buck on ebay

project89

iTrader: (1)

cheaper tubing

http://www.ebay.com/itm/Water-Inject...c0c383&vxp=mtr it comes with 8ft instea dof 15 but that should be more then enough

project89

iTrader: (1)

look at the fittings in this ebay ad u need to get one of those kind of fittings to screw into the back of the nozzle to hookup the nylon line or a 1/4 inch compression fitting from the autoparts store will work
\http://www.ebay.com/itm/Snow-Perform...1ac2cd&vxp=mtr


prolly be easier to just get the compression fitting

prolly need 1/8th npt male to compression fitting but id wait till u got the nozzle to verify the size but it should be 1/8 npt

fasteddi

iTrader: (2)

Alky injection items are on its way!!

project89

iTrader: (1)

u do relize the way ur going this thing is destined for the 11's