13.20 @ 103 not so good

[freeman 188]

first time to track today and ran a 13.20 @103 mph on 18psi not that great with the mods I have done and a 1.817 60 foot with the clutch slipping of the line . I have read people are running into the 10,s with this turbo .what would be a good clutch for my setup that isn.t to far over priced.:

 

[Blindsey]

according to your mods you are running 450s? I would bump up to some larger in injectors and bump that boost up a lot. Just my .02

 

[freeman 188]

fuel doesn,t seem to be a problem ,as I had to take 5% out at wot ,my air fuel is at 11.6 to 12.2 so it would seem to be getting lots of fuel .also my temp goes up to 209c when the boost comes on for awhile and I have replaced all the components of the cooling system.

 

[TxR6guy]

You should be running atleast 650cc injectors for that car, also have you checked your base timing? also what do you have your WOT timing set to?

I would leave the boost where it is until you upgrade inj, i would think your close to maxing out those 450cc? So far as in clutch i like the ACT 2600 street disk and Fidanza Flywheel. But this time around im trying the Fidanza 3.2 clutch and see how it does.

 

[The_EE]

20g turbonetics turbo,exhaust manifold ,450cc injectors, blow off valve, external waste gate,255lph fuel pump, full 3" exhaust, cat back system, boost gauge in pillar pod ,aem wideband,boost controler,3inch gm mass with translator,fmic,cop coil,2.5" intercooler piping

Ok first off.. 450cc injectors are WAY too small for a 20g. Even 720's can be pushing it. At 22psi on my 20g ( flowing almost 40lbs/min ) I bring my 950's up to 68% IDC and those are over twice as big as your injectors. On E-85 I see 86% IDC. My turbo isnt even maxed out yet

Second, what kind of fuel are you running? You want 11.4 AFR's. 12's are way too lean.

You need something better than a AFC to control the injectors needed for a 20g, ask me how I know

I dont see a fuel pressure regulator in your list of mods, you really need one of those.

As for clutch, the bare minimum I would suggest is something like a Clutch Masters Stage 4, 6 puck sprung clutch. I would never suggest an ACT unless you were my enemy. Too many people I know have had nothing but problems with them, springs popping out, clutches cracking etc. Unfortunately you have to pay to play when it comes to running 10's and 11's when it comes to clutches.

What blow off valve are you running? That could be a problem right there as well. If its a knock off or a crappy brand, it could be opening up causing you to lose some boost which means, your turbo is working harder than it should and you will be losing power and over working your turbo.

Do you have any boost leaks?

You have quite a number of things you need and I honestly thing DSMLink is one of them. The SAFC sucks, its best geared to a 16g and thats about as big as I would go when using one, when you step past that then you step into the little big boy territory.

 

[v8s_are_slow]

I have a Spec 3 that I got from Performance Car Parts | Supra | EVO | WRX | Porsche | TitanMotorsports.com for a good price. And +1 on needing bigger injectors. You might be getting enough fuel but your idc's are probably screaming!!!! I love 20g's and so wish I could trade in my 50 trim for one of those

 

[freeman 188]

my blow off is a xs power one that came with a kit I bought ,and that is all I kept from it ,does anyone have a picture of there fpr setup ,because I have one but need to find a good place to mount it .I think I will have to get some bigger injectors ,should I upgrade my cams or are they good already.ok how hard is it to do adjustment,s with the dsm link .for the fuel I am running 92 octane pump gas .

 

[OneLove]

Imo, you should be happy running a 13.20 on stock injectors. Like everyone else sais, get bigger ones asap.

 

[freeman 188]

ok with dsm link do I have to get the eprom ecu

 

[RoasT BeeF]

Yes. DSMLink Homepage

 

[Fiascoxl]

i cant believe your not shopping around for a new motor! get the dsm link, bigger injectors and a fpr and you'll be putting down numbers that 20g supposed to be putting down!

 

[4g63Powered]

I can't believe noone's mentioned the fact that it was your FIRST time at the track. Gotta walk before you can run, and you better upgrade your fuel system or you not even going to crawl.

Hell, I'd be happy with a 13.2 my first time out.

 

[bastarddsm]

at 100% duty cycle 450's will support 325 hp....FYI.. I doubt he is making that. I believe fuel cut is before then..

 

[PSSSHHH]

Hey i was the same way. I'm not having fuel problems, i'm not running to lean, i'm actually running a lil rich every now and then. But i finally broke down and bought some injector, and you wouldn't belive the difference. The car is now getting the fuel it wants and runs 10x better. Get some quick, b/c there is two different vendors on here right now with all injectors on sale!!

 

[The_EE]

My FPR Setup

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[Splitpi]

at 100% duty cycle 450's will support 325 hp....FYI.. I doubt he is making that. I believe fuel cut is before then..

No.

HP = ((Size [in cc/min] / 10.5) * (4 * Duty Cycle)) / (BSFC)

BSFC should range from .55 to .65 on a turbo engine with the most likely hood of .6 to .65

Using 450 cc/min and throwing all caution to the wind by running the injectors in an uncontrolled free state of 100% IDC yields the following HP numbers.
HP = ((450/10.5) * 4 * 1) / .5 = 342.86
HP = ((450/10.5) * 4 * 1) / .55 = 311.69
HP = ((450/10.5) * 4 * 1) / .6 = 285.72
HP = ((450/10.5) * 4 * 1) / .65 = 263.74

Under the best of conditions you could hope for 342 hp. And I would no way imply that anyone should strive or risk their vehicle to max it out. The realistic attainable level for 450's is 280 to 240 hp depending on the vehicle. I know I put down 202 WHEEL hp @75% idc on my 450's.

 

[bastarddsm]

No.

HP = ((Size [in cc/min] / 10.5) * (4 * Duty Cycle)) / (BSFC)

BSFC should range from .55 to .65 on a turbo engine with the most likely hood of .6 to .65

Using 450 cc/min and throwing all caution to the wind by running the injectors in an uncontrolled free state of 100% IDC yields the following HP numbers.
HP = ((450/10.5) * 4 * 1) / .5 = 342.86
HP = ((450/10.5) * 4 * 1) / .55 = 311.69
HP = ((450/10.5) * 4 * 1) / .6 = 285.72
HP = ((450/10.5) * 4 * 1) / .65 = 263.74

Under the best of conditions you could hope for 342 hp. And I would no way imply that anyone should strive or risk their vehicle to max it out. The realistic attainable level for 450's is 280 to 240 hp depending on the vehicle. I know I put down 202 WHEEL hp @75% idc on my 450's.

Yes what your saying is correct, but it is also waaaaay conservative. .5 bsfc ~ 12:1 Afr, .55 bsfc ~ 11.5:1 afr. so if you lean it out to around 12:1 you can make about 320hp. Not saying its a great idea, but it can be done. As long as it isn't knocking, then its perfectly safe.

I personally am shooting for 300 on E85 with 450's, but i have some tricks up my sleave.

 

[Splitpi]

Yes what your saying is correct, but it is also waaaaay conservative. .5 bsfc ~ 12:1 Afr, .55 bsfc ~ 11.5:1 afr. so if you lean it out to around 12:1 you can make about 320hp. Not saying its a great idea, but it can be done. As long as it isn't knocking, then its perfectly safe.

I personally am shooting for 300 on E85 with 450's, but i have some tricks up my sleave.

Best of luck with that. The math doesn't lie. You'll need about 15% extra which definitely throws you out of the ball park. And bsfc is tied to far more than AFR. Its simply a measure of how the engine produces combustion and accounts for temperature, humidity, efficiency, afr, etc... its a composite number.

 

[bastarddsm]

Best of luck with that. The math doesn't lie. You'll need about 15% extra which definitely throws you out of the ball park. And bsfc is tied to far more than AFR. Its simply a measure of how the engine produces combustion and accounts for temperature, humidity, efficiency, afr, etc... its a composite number.

well the way I was looking at it:

It takes roughly 30lb/min airflow to make 300hp. So with a 12:1 afr youd need about 2.5 lb/min of fuel flow. Thats 150lb/hr or 1575cc/min or 4 390cc injectors. If you BFP was 43.

so for the bsfc:
30lbmin~300hp .1lb/min = 1hp 6lb/hr = 1hp with a afr of 12:1, 6/12 = .5 lb of fuel per hr per hp.

Note this is all for gasoline.



For my e85 car, I am running 10:1 compression. 52psi bfp. I will kiss 100% dc, but i'm not especially worried about that.

 

[Splitpi]

For my e85 car, I am running 10:1 compression. 52psi bfp. I will kiss 100% dc, but i'm not especially worried about that.

Ahh... increased base fuel pressure which roughly equates to 500 cc/min. Though I highly doubt you will attain it on the 450's. Best of luck though. Due to alot of other factors that will calculate into how well the engine utilizes the fuel combustion.

 

[bastarddsm]

Ahh... increased base fuel pressure which roughly equates to 500 cc/min. Though I highly doubt you will attain it on the 450's. Best of luck though. Due to alot of other factors that will calculate into how well the engine utilizes the fuel combustion.

I have 10:1 compression too I've calculated it out about 7 differen't ways, and they all say at 100% dc it should be possible. I'm remaining hopefull, lots of people that play with the juice swear that you don't need injectors as large as you would think.

You ever make it to coradova near the quad cities?

 

[freeman 188]

will a mallory fuel pressure regulator work part#4305m ,and how much fuel pressure should it be set at. i,m going with 750cc injectors