I'm looking to get myself into the 12's. I'm a 220 lbs male so I have that going against me. (I'm working on the weight loss but I'm 6'4 and built so there isn't much room) I'm looking at ways to increase HP without going with SC or nitrous.

Right now I only have a 93 oct tune from Bamachips. What do I need to add to get myself over 300rwhp and into the 12's with street tires and not break the bank. That would be over $1500. Thanks in advance for everyones help on this!

 

If you want to get into the 12.9s, all you really need is a JLT intake and some drag radials and maybe 4.10s. Traction is the key. These mods would cost you about $1300-$1500.

If you want just 300 RWHP, JLT intake (has highest gains over anybody) and pullies with a new tune from Doug should get you pretty close. You're going to have a hard time getting traction on the stock tires with 300 rwhp.

 

I have o/r h, jlt, sct 2 with brenspeed tune and I have 290hp. That is with a 91 octane tune and a conservative a/f of 12.5 throughout. I think with your 93 octane tune you should be really close to the 300 mark.

As far as track times, just get your self some m/t drag radials and drive it like you stole it!!

 

As it stands now when I get on it my back end slides out going into first and then into second. I lost to a 350z the other day because I didn't want to lose control of the car and backed off. Hence why I have this sudden urge for more power so when it does hook up I'll make up the loss of time. What am I doing wrong? I thought that the car should hold straight even with the street tires.

 

I have almost 325 RWHP n/a with the mods listed below. I have no issues with grip at launch. And that's on the street with street tires... not at the track. Once I get 4.10 gears, I may have to get some LCA's to help with traction. All I can think of is that you are launching at too high RPM's. With the minimal performance mods you have... and with you having LCA's... I have no clue why you are having issues keeping the back end straight.

My advice at first was for you to get the JLT CAI, some 4.10 gears, a mid-pipe with high-flow cats and some underdrive pulleys. You can get all that for about $1500, especially if you do a little work youself... like the exhaust and possibly the pulleys. But, after hearing about your troubles launching the car, adding all that is only going to make it worse. If you have an auto, you might want to get a torque converter with about a 3000 RPM stall. That will let you launch at higher rpm's and paired up with some 4.10 gears, you may be able to get into the 12's with just those two mods along with Doug's tune.

 

It could it be partially related to cold street temps, a gradual hardening of tires due to age, the lower sidewall height of the tires, and the stiffer springs.

I'm driving a FWD car right now, and when it was new, the tires hooked good, but now with the colder weather and 10000 miles, I have noticed a significant reduction in traction. It would obviously be much worse with a higher HP car.

 

When I was running NA I had a Steeda CAI, C&L intake tube, Steeda UDPs, and Meziere EH2O pump along with a custom tune. Was 304rwhp & 318 rwtq SAE corrected.

 

<div class='quotetop'>QUOTE(bpmurr @ February 28, 2006, 8:16 AM) Quoted post</div><div class='quotemain'>
As it stands now when I get on it my back end slides out going into first and then into second. I lost to a 350z the other day because I didn't want to lose control of the car and backed off. Hence why I have this sudden urge for more power so when it does hook up I'll make up the loss of time. What am I doing wrong? I thought that the car should hold straight even with the street tires.
[/b][/quote]


When I talk about these type of things, I get called irresponsible! But, I am glad you atleast tried to take care of the 350Z!

I think Acadian is on the right track! 325RWHP for a N/A GT is sweet!

I'll get some revenge for you on the 350Z next time I catch one at a stop light.. [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img]

Mission: 350Z Destruction, revenge for bpmurr!! Safely of course! [img]style_emoticons/<#EMO_DIR#>/icon_mrgreen.gif[/img]

 

Well it was a whole 30 degrees out so I have a feeling my tires aren't getting sticky like they need too. Hence the back end sliding out of me. It's only the torque tune that I have the problem. The performance tune keeps things in line. I was running the torque tune at the time though because it feels better for day to day driving.

 

304.07 RWHP 323.80 FT LBS TQ

JLT Intake
Pypes off-road H
Flowmasters axleback

Tuned by Tim @ Modularpower House in Marietta, Ga

 

<div class='quotetop'>QUOTE(bpmurr @ February 28, 2006, 8:16 AM) Quoted post</div><div class='quotemain'>
As it stands now when I get on it my back end slides out going into first and then into second. I lost to a 350z the other day because I didn't want to lose control of the car and backed off. Hence why I have this sudden urge for more power so when it does hook up I'll make up the loss of time. What am I doing wrong? I thought that the car should hold straight even with the street tires.
[/b][/quote]

WTF!- The 350z must have had twin turbos or something because you should be able to smoke one of those. My buddy has a 350z with intake y-pipe and mufflers and I take him by about two cars length??? [img]style_emoticons/<#EMO_DIR#>/dunno.gif[/img] That's puzzling to me [img]style_emoticons/<#EMO_DIR#>/headscratch.gif[/img]

 

<div class='quotetop'>QUOTE(acadian @ February 28, 2006, 8:34 AM) Quoted post</div><div class='quotemain'>
I have almost 325 RWHP n/a with the mods listed below. I have no issues with grip at launch. And that's on the street with street tires... not at the track. Once I get 4.10 gears, I may have to get some LCA's to help with traction. All I can think of is that you are launching at too high RPM's. With the minimal performance mods you have... and with you having LCA's... I have no clue why you are having issues keeping the back end straight.

My advice at first was for you to get the JLT CAI, some 4.10 gears, a mid-pipe with high-flow cats and some underdrive pulleys. You can get all that for about $1500, especially if you do a little work youself... like the exhaust and possibly the pulleys. But, after hearing about your troubles launching the car, adding all that is only going to make it worse. If you have an auto, you might want to get a torque converter with about a 3000 RPM stall. That will let you launch at higher rpm's and paired up with some 4.10 gears, you may be able to get into the 12's with just those two mods along with Doug's tune.
[/b][/quote]

Acadian! That 383HP @ the flywheel N/A! WOW! I guess 400HP N/A for the 3V 4.6 is not a pipe-dream! That is sick power! Thats gonna have a fat curve as well, which means it would pull me real hard!

I think you should finish it up Acadian! Set the bar! [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img]

 

I agree with Ian on this one...You could have a 1000 HP but if you just sit'n spin, a Kia could beat yah every time... [img]style_emoticons/<#EMO_DIR#>/biggrinjester.gif[/img]

The cold pavement probably does have some to do with it, but you might want to consider some suspension mod's to help out. LCA would be a good start IMO. Tires would probably be the biggest help for your situation...

In N/A trim I put down 312 RWHP / 331 RWTQ with a C&L Intake, Diablo Pred w/ C&L tune and JBA Long tubes w/ off-road H...with P&P head's and cam I could see a N/A motor putting down 370/360 fairly easy IMO... [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img]

 

<div class='quotetop'>QUOTE(Vegasjay @ February 28, 2006, 3:14 PM) Quoted post</div><div class='quotemain'>
I agree with Ian on this one...You could have a 1000 HP but if you just sit'n spin, a Kia could beat yah every time... [img]style_emoticons/<#EMO_DIR#>/biggrinjester.gif[/img]

The cold pavement probably does have some to do with it, but you might want to consider some suspension mod's to help out. LCA would be a good start IMO. Tires would probably be the biggest help for your situation...

In N/A trim I put down 312 RWHP / 331 RWTQ with a C&L Intake, Diablo Pred w/ C&L tune and JBA Long tubes w/ off-road H...with P&P head's and cam I could see a N/A motor putting down 370/360 fairly easy IMO... [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img]
[/b][/quote]

Well I already have the BMR LCA's so I'm not sure what else I need...... I'm guessing it's just the cold and the fact that I'm running summer tires in Feb.

What RPM should I be launching at with a five spd manual with TC off?

 

3000 rpm

 

<div class='quotetop'>QUOTE(bpmurr @ February 28, 2006, 3:52 PM) Quoted post</div><div class='quotemain'>
Well I already have the BMR LCA's so I'm not sure what else I need...... I'm guessing it's just the cold and the fact that I'm running summer tires in Feb.

What RPM should I be launching at with a five spd manual with TC off?
[/b][/quote]


Something less than you have been. In this weather I would think no more than 2500 rpm. Find a isolated road and practice a little. Start at 1500 rpm and work your way up in 500 rpm increments. When you break traction and start to spin you have found the threshold.
Scott [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img]

 

<div class='quotetop'>QUOTE(70MACH1OWNER @ February 28, 2006, 2:51 PM) Quoted post</div><div class='quotemain'>
Something less than you have been. In this weather I would think no more than 2500 rpm. Find a isolated road and practice a little. Start at 1500 rpm and work your way up in 500 rpm increments. When you break traction and start to spin you have found the threshold.
Scott [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img]
[/b][/quote]

That's good advise...That's how I was told to start as well. You will learn where your car wants to keep traction and in it's environment/ road/ track condition's. [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img] Since you already have some suspension mod's I would say tire's (DR's) would be your best bet...You could also throw in the CIA and gears for some extra fun...Then you will have to find your new launch RPM's. It's alway's something...

 

<div class='quotetop'>QUOTE(Vegasjay @ February 28, 2006, 6:57 PM) Quoted post</div><div class='quotemain'>
That's good advise...That's how I was told to start as well. You will learn where your car wants to keep traction and in it's environment/ road/ track condition's. [img]style_emoticons/<#EMO_DIR#>/thumb.gif[/img] Since you already have some suspension mod's I would say tire's (DR's) would be your best bet...You could also throw in the CIA and gears for some extra fun...Then you will have to find your new launch RPM's. It's alway's something...
[/b][/quote]
when you out on the hunt drop your air pressure down to 25-28psi or so. don't drive everyday or long distances like this but it makes a big difference with the stock rubber and pretty much all low hp profile tires. i lowered my 60' times by a tenth by adjusting air pressure in the stock pirelli's. doesn't help at all now but it did before the converter,l't's,dyno tune,cai,h-pipe.

 

I'll try the tire pressure because I run mine at 36psi. I'm going to practice when the weather gets warmer so I can find the right way to get the power down. Losing to slower cars because of my lack of ability is not cool!

 

36?? Doesn't the door recommend to use 32?