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KB240SR
08-05-2006, 12:34 AM
I went to Cecil County tonight and got 6 runs in.

1st run...2.3 60ft, 1/8 8.7 @ 88mph, 1/4 13.2 @ 105mph
2nd run...2.5 60ft, 1/8 9.0 @ 87mph, 1/4 13.5 @ 112mph
3rd run...2.2 60ft, 1/8 8.6 @ 87mph, 1/4 13.1 @ 112mph
4th run...2.2 60ft, 1/8 8.7 @ 87mph, 1/4 13.2 @ 111mph
5th run...2.3 60ft, 1/8 8.9 @ 87mph, 1/4 13.3 @ 111mph
6th run...2.2 60ft, 1/8 8.6 @ 88mph, 1/4 13.0 @ 113mph (New Best)
Old run...2.3 60ft, 1/8 8.5 @ 89mph, 1/4 13.1 @ 113mph (Old Best)

Im unsure why my trap was so low on the first run. Im running 205/55/15 Bridgestone G009 tires (28psi Tire Pressure) which explains my horrid 60ft times and bad ET. Im more concerned about my trap speed being low for the boost. I am running 19psi with a rough 11.5 AFR. Only hits 19psi early in the RPMs, once it gets to around 5500+ boost drops down to 16psi by redline. Shifting through the gears, i dont think boost goes much higher than 17psi and then falls some by redline. Please pick apart my setup and track times so i can get my car faster. I already know i need Drag Radials or wider rims/tires so dont point that out. Even though my times suck, i stay consistent which is a plus i guess.

GT2871R .64
HKS 264 Step 1 Cams
Enthalpy ECU thats SAFCII Tuned (Still Working With Tuning)
600cc Injectors
Z32 MAF
Stock Exhaust Manifold
Stock Turbo Elbow
Open Greddy DP
Stock Intake Manifold
Link in my Sig has the rest of my setup

s14rhd
08-05-2006, 12:40 AM
How much power are you making?

2slow240sx
08-05-2006, 06:58 AM
Nasty 60' times. Get those down and the rest will look good.

KB240SR
08-05-2006, 08:54 AM
Havnt dynoed at 19psi. I think i might be around 330whp. What do you guys think i should upgrade to get my trap speed up to par with majority of the 2871R crowd? Id like to be more toward the 117+mph area.

forcefedS13
08-05-2006, 10:07 AM
Upgrade the manifold to a tubular one
Run larger injectors and 43.5 psi Fuel Pressure (im sure you have)
Run Larger cams
LSD

Im shooting for Angels .64 record of 11.5 and im setting mine up with his advice.

BoostedVR4
08-05-2006, 12:41 PM
Havnt dynoed at 19psi. I think i might be around 330whp. What do you guys think i should upgrade to get my trap speed up to par with majority of the 2871R crowd? Id like to be more toward the 117+mph area.

I ran the identical times with my stock t28 and stock tires. I managed to grab a 1.9 60' once, and got a 12.5 @113mph. This was with my 2700lbs S14, here is a shot of my dyno graph, maybe your power is close?

http://boostedvr4.com/pics/dynosheet3.jpg

2slow240sx
08-05-2006, 03:05 PM
At the risk of being dipped in tar and feathers, I'd suggest a turbo upgrade (along with cams/ex. mani.) to obtain more "breathing room" up top. That way you'll hold that torque a little longer throughout the rpm range.

But this is said without even seeing your dyno sheet, so who knows. You might just need a new kanooter valve.

s14rhd
08-05-2006, 04:46 PM
I would say the tune is poor. Should me making at least 350whp with that setup the setup is good for much better traps then you are running get it on dyno and see whats happening.

KB240SR
08-05-2006, 04:51 PM
thanks for the advice guys. i have a Nismo 2 way LSD. ive got a couple tunes from Enthalpy that i still need to work out so im gonna hop on the dyno for tuning within a month or so to see which makes the most power. i plan on upgrading to a 2871R .63 exhaust housing and make everything top mount to replace the stock manifold and elbow. Also gonna get a Top Speed Intake Manifold to replace the stocker. 600cc injectors should max around 375-400whp so i think there fine for now (i know i should have bigger). For cams id like to go 264 + 272 Step 2 combo but i dont want to pull off the head yet to replace the valve springs, unless someone can give me some info on how to replace them without pulling the head off.

KB240SR
08-05-2006, 04:53 PM
I would say the tune is poor. Should me making at least 350whp with that setup the setup is good for much better traps then you are running get it on dyno and see whats happening.

Thats what i keep thinking.

BlackBomber
08-05-2006, 05:42 PM
one word.... launch.

KB240SR
08-05-2006, 06:10 PM
I launch around 4k-4500rpm. 4k and slipping the clutch off the line gives a decent roll but once boost comes on, the tires are spinning. The closer i launch to 4500rpm, boost hits faster, lighting the tires up. I think i can launch decent for the tires but I just dont have the traction to help the ET.

I did make 272whp 268tq @ 15psi with no adjusting of the Enthalpy Tune, this was back in May. I was running below a 10.0 AFR. Running 19psi now and tuned to near 11.5 AFR, i should be putting over 300whp. What do you think?

2slow240sx
08-05-2006, 06:18 PM
I think your tune is too rich, and that's definitely holding you back in the power department.

However, you really need to get some tires. At the very least some good DR's.

steve shadows
08-05-2006, 06:27 PM
yeah why even waste your time with an IRS car like the s13, especially as stiff as the chasis is even in stock form without good drag radials or at least stickier summer tires.

get a haltech from me! no more tuning whoes haha

2slow240sx
08-05-2006, 08:22 PM
I hardly consider the S13 chassis to be stiff by any means. It's quite the flexi-flyer.

minime
08-05-2006, 10:39 PM
For cams id like to go 264 + 272 Step 2 combo but i dont want to pull off the head yet to replace the valve springs, unless someone can give me some info on how to replace them without pulling the head off.

FSM!

s14rhd
08-06-2006, 02:40 AM
Thats what i keep thinking. Tuning is about the most important aspect don't be a cheapskate in this area. Launch doesn't effect trap speed nor do tyre in general. Definitely get it tuned.

steve shadows
08-06-2006, 06:48 AM
I hardly consider the S13 chassis to be stiff by any means. It's quite the flexi-flyer.

as opposed to an A-frame?

2slow240sx
08-06-2006, 07:03 AM
Tuning is about the most important aspect don't be a cheapskate in this area. Launch doesn't effect trap speed nor do tyre in general. Definitely get it tuned.

Are you saying that him smoking the tires when boost hits isn't going to affect the trap speed? I would have to respectfully disagree on this one. If you're spinning the tires, you're not accelerating. Also, if the '60 is low, the car is accelerating, getting you closer to actually winding it out in the 1/4.

I still mainatain that if he ran a 26" M/T ET Street tire on a 15-16" wheel, he'd see more top end, MUCH better '60 times and better ET's overall.

The tire is slightly taller than stock, which is good because he'll be able to stay in boost longer in each gear with the taller gearing caused by the larger tire. Also, it would have enough sidewall flex to absorb the shock for the drivetrain, keeping parts from breaking and planting the power to the ground.

KB240SR
08-06-2006, 10:31 AM
Drag radials would definitly help me alot. What size can i fit on the stock rims? i think ive seen people run 225/50/15 and theres also 225/60/15 but not many people run them. i put in my other Enthalpy tune and did highway pulls last night with it. Got it dialed in to a 11.8 entire way through. I would tune to 12.0 AFR but im on stock headgasket and dont want to go too lean with it. Got to a long upward hill on the highway and did a sprint from 80mph. Tach read 7k rpm in 5th by the top of the hill. Checked the gearing and that is around 165mph. Flat ground, the car would have been toped out completely. The car has some insane pull but still drops boost. Which i guess is from the stock elbow. Im waiting to upgrade this when i go top mount.

hernameissilvia
08-06-2006, 10:43 AM
Heres may setup to compare, since mines pretty similar. I was on 225/50/16 kumno 711, which also explain my 60'.
I was running a pretty consistent 12.9 @ 114mph with 2.1 60' and 18psi

GT2871R .64
Stock Cams
Enthalpy ECU
740cc Tomei Injectors
Z32 MAF
Stock Exhaust Manifold
Greddy Turbo Elbow
Greddy DP
Stock Intake Manifold
Walbro
3.5" Exhaust

I would launch at about 3500-3750rpm.<< really depends on the track thou.

KB240SR
08-06-2006, 02:00 PM
i talked with a guy from MD i know that has close to the same setup. he ran a 12.5 @ 114mph, 1.9 60ft. Hes using Nitto 555R's that are 255/40/17 i think. i told him my times and he said they were awesome for stock tires. told me he couldnt break a 13.8 on his stock tires.

2slow240sx
08-06-2006, 07:05 PM
When you select your tires, if using the 15" wheels, go with the 225/60/15. You'll want that extra sidewall to take the shock of the launch, keeping your drivetrain from breaking. Plus, they're the correct height. Remember, you have lots of power, so the taller gearing resulting from the tire height will keep you in boost longer during each gear.

Honestly, I bet you could hit an AFR of 12.0:1 or higher and be fine. It really depends on the timing, but the closer you can get to 12.5:1, the closer you'll be to MBT. Obviously, you'll want to monitor detonation and all.

I think you should hit the dyno and get take some det cans along with you to get that sorted out.

Good luck with the upgraded tires when you get 'em and let us know how you do!

Enthalpy
08-06-2006, 08:13 PM
maybe you should take the car to the dyno before pointing fingers at the tune....

s14rhd
08-06-2006, 09:50 PM
Are you saying that him smoking the tires when boost hits isn't going to affect the trap speed? I would have to respectfully disagree on this one. If you're spinning the tires, you're not accelerating. Also, if the '60 is low, the car is accelerating, getting you closer to actually winding it out in the 1/4.

I still mainatain that if he ran a 26" M/T ET Street tire on a 15-16" wheel, he'd see more top end, MUCH better '60 times and better ET's overall.

The tire is slightly taller than stock, which is good because he'll be able to stay in boost longer in each gear with the taller gearing caused by the larger tire. Also, it would have enough sidewall flex to absorb the shock for the drivetrain, keeping parts from breaking and planting the power to the ground.Won't argue that you need good tyres to run decent times at the strip they are a must. As far as traps speeds go you can actually get better traps with slower ets. Often you will see people overcome traction problems and actually drop a few MPH out of the trap. You have more time on the strip to build up speed when your sitting there spiinning.

Definitely get it to a dyno.

KB240SR
08-06-2006, 10:48 PM
maybe you should take the car to the dyno before pointing fingers at the tune....

Only finger im pointing is at myself. I know the tunes off because i found out that the 550cc injectors that i was told i got are actually 600cc and ive just tuned the difference with my SAFCII no problem. It runs very strong once ive tuned it in where i need it and hope to get on a dyno soon. The tune is exactly for what i told you and its my fault that its wrong. Thats the problem with buying used stuff from people. I was just misinformed about the size of injectors. Your tunes great and shows no knock at 11.8 AFR so i might lean it out some more.

Ill be investing in drag radials very shortly.

Enthalpy
08-06-2006, 10:52 PM
thanks for the response, but i wasnt tryign to be critical of you. just the others in this thread who were jumping to be critical of the tune :)

TS4l
08-07-2006, 11:24 AM
I was going to suggest the same as when I got my tune from Scott I didn't know how close to perfect a mail order tune could be so when I dyno'd rich I thought it was the tune. However once I looked at everything it ended up being boost leaks and other problems after I got all the problems fixed the tune was spot on. It seems like too many people get the mail order tunes and if they don't run right blame the tune but I'd be willing to bet its something else. Get it on the dyno and see what its doing.

As for your times I think more than anything those tires are holding you back from any decent times. You need something you can launch and shoot for better 60' times. I kept running 13.6's with 400hp becuase I was spinning like crazy and then when I got tires I was launching weak. Well I still haven't launched that great but now I consistantly running low 12's.

My advice get some better tires, rev it to 5500-6500 and drop the clutch and hold on. Good luck.

killjoy
08-07-2006, 01:44 PM
I agree with Jason. I am getting tired of people expecting to run good times of ****ty street tires. Why even bother? You know you are gonna have to buy at least drag radials anyway. The problem with your setup is you expecting something from nothing. Its like buying an awesome head unit and ****ty speakers and wondering why it sounds bad.

Get some tires and dyno and then repost.

HKSPWRDZ
08-07-2006, 02:47 PM
You need to figure out how to get some traction, your 60 foot times are killing you. You are trapping some high speeds for 13.1

KB240SR
08-07-2006, 06:16 PM
Dont get so ****ty about my times because i expected them to be the way the ET's to be the way they are. I never said i was gonna run a 12 with these tires. Im using these tires because they only cost me $50 for the pair mounted and balanced and work decent for drifting and daily driving. Drag Radials is next on my list because i do want to make some 12 second passes before the seasons over. Im waiting to get on a dyno untill i go top mount and a new intake manifold so i can really see some power being made. Ill hopefully be selling a car shortly so the stuff i want will come hopefully by September.

HKSPWRDZ
08-07-2006, 09:19 PM
Dont get so ****ty about my times because i expected them to be the way the ET's to be the way they are. I never said i was gonna run a 12 with these tires. Im using these tires because they only cost me $50 for the pair mounted and balanced and work decent for drifting and daily driving. Drag Radials is next on my list because i do want to make some 12 second passes before the seasons over. Im waiting to get on a dyno untill i go top mount and a new intake manifold so i can really see some power being made. Ill hopefully be selling a car shortly so the stuff i want will come hopefully by September.

You asked.

KB240SR
08-08-2006, 12:22 AM
It was directed toward Killjoy thinking i expected to run awesome times with my current tires when i stated above that i already knew i needed Drag Radials.

killjoy
08-08-2006, 08:37 AM
Last time I checked the thread name was Pick apart my setup and track times.

So I did.

TS4l
08-08-2006, 10:53 AM
Everyone's just trying to help and I'm sure you'd agree that those tires are really hurting you. But I understand you run what you have and see what you can do. Good luck and once you get some DR's and launch hard I bet you'll do much better.

KB240SR
08-08-2006, 11:17 PM
I agree with Jason. I am getting tired of people expecting to run good times of ****ty street tires. Why even bother? You know you are gonna have to buy at least drag radials anyway. The problem with your setup is you expecting something from nothing. Its like buying an awesome head unit and ****ty speakers and wondering why it sounds bad.

Get some tires and dyno and then repost.

1st part of your post is just not needed. This isnt even picking apart my setup and time. Its assumming something that your absolutly wrong about. I never expected to run good times from my tires because they are cheap and too small and i realize that. But still a 13.0 on a 6" wide all season tire isnt that bad and just shows how much more potential the car has. Why bother racing? I go drag racing because its fun and i dont take it serious enough to care about drag radials that much. Costs me $12 to run the car and i got 6 runs in that night. Pretty cheap if you ask me. Why not run whether you have drag radials or not? It makes you a better driver either way.

2nd part of your post is all you needed to post in the first place. It wouldnt have offended me at all. But whatever man. Im done.

killjoy
08-08-2006, 11:54 PM
It makes you a better driver either way.



Ummm, no, it doesn't. You can "learn" your car with crappy tires and then you will have to "learn" it again with good tires so you have really acheived nothing. But whatever. I am done too.

SequenceGarage
08-10-2006, 11:48 AM
i have a .64 with stock manifolds and no cams

was trapping between 117-119 @ 17.5~psi weighing about 2800lbs dry

i also noticed on any run with a lot of spin i would trap 114ish so thats likely your problem

trap is more indictive of your horsepower but if you still cant accelerate for the first 1/4 of the track then OBVIOUSLY your trap is gonna suck as well.

Blown240sx
08-10-2006, 12:40 PM
You all should be glad about your trap speeds lol My turbo takes 10 years to spool so Im trapping like 105 mph with a 60ft of 2.5-2.6 lol
Im going to have to invest in a Anti Lag system to build boost on the line.

wperdigon
08-10-2006, 12:59 PM
Tuning is about the most important aspect don't be a cheapskate in this area. Launch doesn't effect trap speed nor do tyre in general. Definitely get it tuned..

agreed - though your 60footer isn't that pretty either - I run a fwd and can pull off a 2.1 on streets =

if you need some help tuning the car, i have the equipment to at the very least street tune it - let me know

william

KB240SR
08-10-2006, 11:26 PM
thanks for the advice. Dyno time and Drag Radials will be coming very soon. ill keep everyone posted on new times and numbers.