Fuel on the way, what can i use

[1G/TS-ituner]

Im ordering 550 cc injectors, 255 pump, and the apex s-afc im still running on my big 16G and hopefully i will be able to run mid 12's with that turbo, but what other options do i have open without swaping to a T3/T4 my goal is to hit low 12's high 11's tuned properly with the 16g if possible, but when i want to hit mid to low 11's im going to wanna upgrade to a larger turbo but i dont wanna go with something like the t3/t4 because it will be too much lag for my liking and everyday driving.

So with this in mind are there any turbos out there that i can go with that spool better than the t3/t4 but still push out the same volume ????

Help me out here guys none of my search results led to answering this question of mine

 

[oldman]

1. You will need an AFPR for the 255.

2. You will need at least 660s and FMIC for 11s and 50 trim or larger turbos.

3. FP green is one of the quicker spool street 50 trim turbos.

4. If money is not the issue, look into Ball Bearing turbos.

Hope that helps

 

[1G/TS-ituner]

i already have a front mount IC, and the apex SAFC is included in the parts i ordered but thanks i'll have to do my homework to look for exactly what i want and how i want the cars powerband to be held

 

[hillbillyboostn]

disco potato

 

[hillbillyboostn]

tdo5hr, tdo4e, or a t4 ball bearing.

 

[BGRIPTP]

50 trim or larger turbos.

a Big16G is well capable of 11's. Ive seen a couple small16g's hit the low 12's, high 11's, with proper tuning its possible.

Look into water injection for your setup.

 

[1fast97gsx]

a Big16G is well capable of 11's. Ive seen a couple small16g's hit the low 12's, high 11's, with proper tuning its possible.

Look into water injection for your setup.

Yea but why even waste your time? Just get a 50 trim or something of that sort. I have yet to see that an afpr is absolutely needed as several people I know are running a 255 without them.

 

[CyberEye]

Yea but why even waste your time? Just get a 50 trim or something of that sort. I have yet to see that an afpr is absolutely needed as several people I know are running a 255 without them.

how is wasting you're time? When you can do it with a 16g, why waste you're MONEY on a bigger turbo

 

[BGRIPTP]

Yea but why even waste your time? Just get a 50 trim or something of that sort. I have yet to see that an afpr is absolutely needed as several people I know are running a 255 without them.

I would agree, but he already has the big16g, so it's not worth it to buy another turbo and sell his if he's only looking for high 11's. Im running a 255 without a afpr, no problems with idle or anything yet.

 

[1fast97gsx]

sorry didn't read his post carefully enough ... I didn't realize he already had the 16g. Either way though if you want to get 11s out of that turbo you will have to boost the hell out of it and you will need cams and race gas. The price of cams alone is the difference between what you get for your 16g and a decent sized turbo that will give you 400+ hp easily on stock cams. Since you already have the turbo just have a 3" turboback, 255 pump, safc, 660s, fmic, bov, 1g throttle body, boost controller set at 25 psi on race gas ( for your high 11 goal ) and a decent clutch. Good luck.

 

[oldman]

I have yet to see that an afpr is absolutely needed as several people I know are running a 255 without them.

I know some one who is running fine with a blown head gasket, doesn't mean it's a good idea. Try and provide technical facts first and then offer your own opinion based on your own experience. Simply saying you don't need an afpr without technical explanation to a new commer is not the right way to go.

 

[BGRIPTP]

I know some one who is running fine with a blown head gasket, doesn't mean it's a good idea. Try and provide technical facts first and then offer your own opinion based on your own experience. Simply saying you don't need an afpr without technical explanation to a new commer is not the right way to go.

You can be as technical as you want, but when it comes down to it, what really matters is if it work's or not. If we don't need it, he could try to run without it, see how it works, if he needs it, buy it, if he doesn't need it, dont buy it and save some money?

 

[oldman]

You can be as technical as you want, but when it comes down to it, what really matters is if it work's or not. If we don't need it, he could try to run without it, see how it works, if he needs it, buy it, if he doesn't need it, dont buy it and save some money?

You can setup your car however you want. I'm just saying instead of just "you don't need one", first offer facts on the function of an AFPR and why most serious tuners uses one, then offer your opinion as to why and how you were able to run WELL without one, hopefully with some real data to back it up. Keep in mind you're on 14b and 450s, he's possibly looking at a 50 trim, 660s without ecu upgrade. It's hard enough to tune with just the safc let alone without an AFPR.

 

[steve]

You can be as technical as you want, but when it comes down to it, what really matters is if it work's or not.

I always love it when somebody comes in with no data other than it works for me. Sure the car will run, but if you would bother to check the fuel pressure and put a wideband on to monitor the AF you'd see just how badly fuel pressure overrun impacts the car when your not running WOT or everytime you lift the throttle.

It's not like it isn't a proven fact that the FPR will overrun when using that pump. Your debating if it's a problem and respectfully, I don't think you have the background to argue the point. This is a technical forum, anecdotal evidence doesn't really count for much.

Steve

 

[1G/TS-ituner]

hahahaha i really appretiate this you guys but the reason im not going to stay with the Big16G is simply because i dont want to push that turbo based on a simple fuel set up, i would like a 50 trim so im not pushing the motor, i want the larger turbo for less work to push out the same volume of air at a lower boost level

and my mechanic says with the s-afc its not nessisary to use an AFPR do any of you guys reccomend any turbo that fits my needs? small turbo lag, excellent top end

as all of you have felt the 16g pulls hard from 1st, 2nd, and 3rd, but 4th gear the car loses steam, i had my thoughts set on a super 20G??? but if anyone can reccomend something better please do

 

[Dual-Tipped]

I think your mechanic may be confused. You need an AFPR. They are a great thing to have as well. You can take your tuning to a new level. Oh and a big 16g is a fairly equal turbo to a t3/04 only the 16g will spool better.

 

[steve]

I think your mechanic may be confused. You need an AFPR.

Thank you! I get tired of explaining to people that FPR overrun causes tuning problems that an SAFC can't really tune out.

Overrun doesn't go away at some RPM range, it's a fuel consumption variable.
Sure it exists at idle but it also exists every time you decel and the ECU stops spraying fuel your pressure spikes. It's not a huge problem but you really can't tune correctly if your fuel pressure doesn't follow the 1:1 line with manifold pressure and FPR overrun causes the spikes everytime your engine isn't using up the extra fuel the regulator can't deal with.

Guys who only drive WOT might not notice but for normal driving it just messes fuel calcs for the ECU when one second things are really rich and the next it's lean.

Steve

 

[Revolution]

Thank you! I get tired of explaining to people that FPR overrun causes tuning problems that an SAFC can't really tune out.

Overrun doesn't go away at some RPM range, it's a fuel consumption variable.
Sure it exists at idle but it also exists every time you decel and the ECU stops spraying fuel your pressure spikes. It's not a huge problem but you really can't tune correctly if your fuel pressure doesn't follow the 1:1 line with manifold pressure and FPR overrun causes the spikes everytime your engine isn't using up the extra fuel the regulator can't deal with.

Guys who only drive WOT might not notice but for normal driving it just messes fuel calcs for the ECU when one second things are really rich and the next it's lean.

Steve

Damn I got to it to late. I really don't understand where some of these guys get off.When people just start to regurgitate what they've read and so on and so forth. What in the world does "with proper tuning " mean? How do you expect to properly tune your car ?
An AFC can only do so much ,then you have to look into mechanical tuning so the motor inturn can run compliant to the new numbers you've introduced.

I'm going to solve your 11 sec dilemma. One get bigger injectors like 680S at least and while your at it get an eprom ecu from Jeff O ,it will make tunning allot easier,and lets not forget an earomotive fpr with guage . If you want to modify your fuel lines to maximize flow it's up to you but not necessary. An e316g or a 20g will net you your goals with out to much molestation. Sticky tires and a new clutch will get you what you want.

Run the biggest exhaust possible like i.e a 3 inch o2 housing, this makes a huge difference in spool when added to a 3 inch DP. For future reference depending on what you want to do with your car ,the next step would be upgrade your LSD , trust me that alone would shave time of your 1320 mark.

Don't listen to half of the posters recently allot of garbage gets tossed around, I myself always learn new things off this site everyday from proper braking setups and their heat dissipation to how an LSD works and how it would affect a cars handling characteristics.

Search and read ,then re-read , because usually it takes a few threads to fully understand one topic , like i.e "do I really need an AFPR for my X setup?" the answer is yes ,but do you really understand why though? OK grasshoper have fun. P.s seriously though make a list of all the parts you want and think you need ,then cross reference them in like 2 months ,you'll be surprised how many parts get chucked and how many will be enlisted.

 

[steve]

Damn I got to it to late. I really don't understand where some of these guys get off. When people just start to regurgitate what they've read and so on and so forth. What in the world does "with proper tuning " mean? How do you expect to properly tune your car ?
An AFC can only do so much ,then you have to look into mechanical tuning so the motor inturn can run compliant to the new numbers you've introduced.

You quoted me but I can't tell if your supporting or disputing?

Steve

 

[Revolution]

You quoted me but I can't tell if your supporting or disputing?

Steve

I'm supporting your comments Steve . I guess I didn't make my post very clear.