2G Injector size to run mid 10's

[my97mitsGSX]

2g with a 6bolt swap

ross 8.5 pistons
eagle rods
272/272 hks cams
fp 3052 turbo

goal is to run mid 10's.. what size injectors do you think I would need.. 7 series or 8 series? or bigger?

 

[Stanford]

If you go to 1/4 mile times on this site, there are 11 people under 11 seconds. Thats out of over 29,000 members. You have set quite the goal for yourself, and a very unrealisitic one at that. You should start small and go from there. However to answer your question, I would go no smaller than 800cc. It takes a lot more than deep pockets and a few dyno sessions to break 10's. The faster you go the harder it is to get faster. Good luck

 

[my97mitsGSX]

how is my goal not realistic? I already have all the parts for my motor build up.. i was just asking what size injectors I should use. Right now its a matter of tuning and pratice runs down the track. I'm sure I can get the mid 11's easily and eventually hit 10's with tuning..

Shep has my tranny build up, new rear driveshaft, and new axles to handle the hp i'm going to be pushing.

a little more then 10k invested..

i would've started small, but the thing is, my 2g motor went.. so i had to build a 6bolt.. and instead of just doing that, i figured why not do the tranny and suspension too..

to be honest... i'm also a good driver.. i've taken an sti when the best my buddy could do is a 13.14, i pulled a 12.96, that's pretty good.. i think all he had was an air filter.. plus i never drove the car before or raced it down the track, so i didn't even know where to launch.. but i went by what other people said on the track.. and i ran cosistent 12.96-12.99's (full interior, and about 95 degree weather)

 

[Stanford]

You have a good plan but 10 second cars don't happen over night. Even if you have the parts and can drive decent. Tuning is not easy and unless you are having Shep build your whole car it wont just run 10's the first time out. You will see, now if you do run a mid 10 like you say your goal was the first, second or even third time out. Tell me what the fun was in that. You didn't even get to enjoy the experience, the building, and endless tuning that can go into a car. Thats like saying I wanna bang Jennifer Love Hewitt, and you actually do it. Everything after that is gonna suck, you have already peaked before you even started. Do you see where I am going with this? I don't mean to sound angry or mean, just trying to voice my opinion of instant 10 second cars.

 

[pneumo]

Sounds good. I'd go with 850cc minimum.

 

[herostar]

I'd got 850cc minimum... when I read this I thought to myself "If he thinks he can run 10's, and says he as what it takes... shouldn't he already know what size injectors to run...? that's only a small part..."

 

[pneumo]

At least he's only asking about injectors. Those other BS posts usually ask "what turbo, what IC, what exhaust, what clutch.. blah, blah blaaah..." I have no problem with someone asking what the proper size injector will support 10 sec power. After all, not even the injector size calculator at www.RCeng.com (hint, hint) is accurate for the DSM.

 

[my97mitsGSX]

I was going to go with the 8 series.. but I wasn't sure if they'd be okay or not big enough. I don't want to run them to the max.

Honestly, the way my car has been changing.. i probably won't run 10's, and i'll probably run high 11's... last time i ran my gsx was at a 13.8... its going to take a lot of regular driving just to get used to all the power.. nevermind getting used to it at the track. I know it won't be as fun as working your way down from 14 to 13's, to 12's, to 11's.. but the way i'm going is, I want everything done the right way from the start.. i don't want to be pulling my car apart every week to add "some" mod.

I know tuning is going to be a lot.. I was told the turbo should get me into 10's no problem.. If not, i can always sell it and get something a little bigger, but I also want the car streetable. I don't mind the lag on the street because it'll save me from extra wear on the motor and using up a ton of gas... i don't even want to know how many mpg i get..

anyways.. I'm having A LOT of fun building the car in my garage.. that in itself, is rewarding , especially once its tuned to perform the way I built it to run.

 

[markgholland]

Who told you the FP3052 was going to get you into the 10's? Not criticizing, just asking.

 

[pneumo]

Even though you are building up a fast setup, you will probably still gradually go from high 12's to low 12's to high 11's. That's because you will be learning how to tune and drive this car. Just wait until you start pulling 2.1 60 ft times because you spin the wheels all the way through first gear. Tuning it is a whole new experience. You'll get there, but nothing comes easy once you start making big power.

 

[kpt4321]

Originally posted by pneumo
After all, not even the injector size calculator at www.RCeng.com (hint, hint) is accurate for the DSM.

Why do you say that it is not accurate? I'd say it is.

 

[quarter]

Originally posted by markgholland
Who told you the FP3052 was going to get you into the 10's? Not criticizing, just asking.

hahah.

 

[markgholland]

Originally posted by quarter
hahah.

Did you have something productive you wanted to say?

 

[quarter]

clearly not. did you read my post?

edit: those mods wont get you to mid 10's. is that productive enough for you?

 

[markgholland]

Originally posted by quarter
clearly not. did you read my post?

edit: those mods wont get you to mid 10's. is that productive enough for you?

Exactly why I asked him WHO was giving him misleading information... No need for "hahas" and "hehes." I was trying to ask politely without saying, "no way in hell."

 

[quarter]

well might as well say "no way in hell". someones gotta tell him.

 

[my97mitsGSX]

Originally posted by markgholland
Who told you the FP3052 was going to get you into the 10's? Not criticizing, just asking.

forced performance..

 

[my97mitsGSX]

Originally posted by pneumo
Even though you are building up a fast setup, you will probably still gradually go from high 12's to low 12's to high 11's. That's because you will be learning how to tune and drive this car. Just wait until you start pulling 2.1 60 ft times because you spin the wheels all the way through first gear. Tuning it is a whole new experience. You'll get there, but nothing comes easy once you start making big power.

i know that.. i never said i was going to be running 10's first time out. obviously i'm going to go back to get re-tuned a lot until i'm satistfied.. The parts I have, I was told would get me into the mid-low 10's

Maybe the turbo won't, but the motor setup should at least hold that much hp.

 

[quarter]

you've been told the truth, but only as truthful as someone telling me i could have sex with britney spears. realistic possibility is 0.

a 100% stock motor "setup" would hold that much power btw.

 

[markgholland]

Well, don't let anyone discourage you. It hasn't been done yet (according to dsmtimes), but it doesn't mean that it can't be done. The FP30 is a very nice turbo and no one really has seen their full capabilities. You should clarify your "setup." Pistons, Rods, 272's, and a large turbo isn't a setup, it's a few major parts. This is a bit off topic, but what are you going to run for a fuel system? Manifolds? Piggyback or stand-alone? Do you have a strong enough drive train and transmission to get you into the 10's? There is no doubt that the motor you built will handle 10's horsepower, but what about the rest of the setup?
~Mark

P.S. I ordered the FP3052 from Forced Performance, but with my long-term goals in mind, I called and upgraded to the FP3065.

 

[5150DSM]

Originally posted by kpt4321
Why do you say that it is not accurate? I'd say it is.

Is it accurate? According to the calculator my 52lb/hr (550's) are only capable of supporting 277hp at 80% DC. It's hard to believe 550's are that limited but that's straight from the manufacturer so...

 

[RuBiCaNT5X]

Originally posted by 5150DSM
Is it accurate? According to the calculator my 52lb/hr (550's) are only capable of supporting 277hp at 80% DC. It's hard to believe 550's are that limited but that's straight from the manufacturer so...

Isn't an 80% IDC a tad on the conservative side for 550cc... I bet there are a lot of people putting down 350 at the crank on 550cc..

 

[my97mitsGSX]

Originally posted by markgholland
Well, don't let anyone discourage you. It hasn't been done yet (according to dsmtimes), but it doesn't mean that it can't be done. The FP30 is a very nice turbo and no one really has seen their full capabilities. You should clarify your "setup." Pistons, Rods, 272's, and a large turbo isn't a setup, it's a few major parts. This is a bit off topic, but what are you going to run for a fuel system? Manifolds? Piggyback or stand-alone? Do you have a strong enough drive train and transmission to get you into the 10's? There is no doubt that the motor you built will handle 10's horsepower, but what about the rest of the setup?
~Mark

P.S. I ordered the FP3052 from Forced Performance, but with my long-term goals in mind, I called and upgraded to the FP3065.

no one can discourage me, i'll just have to prove them wrong once everything is running.

I'm going to try and be somewhat different with my setup. I'm going to use the DSM link instead of AEM EMS.. if i can't get it to work, i'll have to use the AEM i guess..

as far as tranny, shep is building me the same one on their 8 second car.. with me running 10's, it should last even longer!, i'm getting stronger axles and a lightened/stronger rear driveshaft.

so not only is the engine strong to hold the power, but so is the tranny... plus i'm not going to be launching a lot to worry about it.

maybe i will go with the 3065 instead..

maybe having a different setup will cost me more, but being different isn't so bad when you can say, i did this setup and look at me running mid 10's.. while everyone else is doing mid 10's running the same setup as everyone else.. yeah their setup is proven.. but mine is somewhat more original.. i took the effort to do things different and experiment.. that's how i look at it.. yeah making the car from 14second to 10 second is a big step, and no doubt i'll probably miss going down with my times.. but the enjoyment of building a project car and doing it mostly myself with parts I selected and getting it to run those times, that's what makes me happy!

 

[RuBiCaNT5X]

my97mitsGSX - If you have the mods to do it, and can accept that it will be an uphill battle to get 10's, then more power to you and good luck with it!

 

[my97mitsGSX]

Originally posted by RuBiCaNT5X
my97mitsGSX - If you have the mods to do it, and can accept that it will be an uphill battle to get 10's, then more power to you and good luck with it!

well as far as motor/turbo/fuel setups, what do you think it takes to get to the 10's, reliably..