My cobra can't beat a GT

[mrmustangman357]

going back to stock tune and will try next time. I asked him today and he said he shifted at 5800 so in all likelihood he was well into 4th when I was still wringing it out in 3rd

In regard to the rpm start I remember dropping to third to see if I can start out there and it sat at 3500 or so, but then I had to speed up to match his start speed. now that I think about it i probably was at 4000 when we started. We will all find out next time

 

[po-po 5.0]

Take it the track


Street racing = gay

roll racing = gay


gay + gay = brokeback mountain.

 

[KingCobra10Sec]

Your are lacking the driver mod, and maybe a tune.

 

[totenkopf13]

Take it the track


Street racing = gay

roll racing = gay


gay + gay = brokeback mountain.

Well said. :beer:

 

[BLOWNLS3]

Here's an idea - Run it at the track. See what you trap. That will tell you where your sitting at power wise.

What is this "track" you speak of ???

 

[lightning_2000]

some cars are stouter than others. driver mod helps alot to

i beat up on 98 cobra with a kenne bell.. had a 2000 gt with diablo but custom tuning by me and 410 gearing .. my gt was stock cams but made power to 6500 no problem.. row them shifts powershift. it picks up alot

 

[ponygt65]

You are being punk'd!

He is spraying a 100 shot on you!! :rockon:

I thought about that....especially given the post from mm-man357 below).

Honestly I think your gearing killed you. Hes hitting his Peak HP and Tq earlier than you are. Even though you have 3.55's, thats equaling his stock gearing, due to higher powerband in the 4v. It might also be your tune. Try and lower speed roll race, I would think a 1st gear roll would be better for you. 3500rpm start wont do anythign but take time to get moving. Even with 4.10s I wouldnt start a 3rd gear roll race at 3500rpm.

Uh, what? you lost me on that....me no understand a u.

going back to stock tune and will try next time. I asked him today and he said he shifted at 5800 so in all likelihood he was well into 4th when I was still wringing it out in 3rd

In regard to the rpm start I remember dropping to third to see if I can start out there and it sat at 3500 or so, but then I had to speed up to match his start speed. now that I think about it i probably was at 4000 when we started. We will all find out next time

Then I think Naz may be onto something...if you have 3.55s and was at 4000+ rpm and that guy pulled.......he punk'd you some how.

 

[Jon98Stang]

What is this "track" you speak of ???

wat?
If you really don't get it. He's talking about a drag strip... :??:

 

[BLOWNLS3]

wat?
If you really don't get it. He's talking about a drag strip... :??:

I was joking dude :lol: I meant many enthusiests don't even visit the strip.

 

[Sny714]

Uh, what? you lost me on that....me no understand a u.

What I meant by that was, the GT is hitting his peak hp/tq much earlier than the cobra. Even with the cobras 3.55's the GT with the 3.27s is still hitting his peaks before the cobra.

 

[mrmustangman357]

I'm riding on 255/45/17s so we are probably pretty close for final gearing.


I pulled the plugs this week and they all look good, except one which was leaking past the threads (wtf?) so I replaced all plugs. all cylinders show 180 psi compression with number 3 at 150. vacuum gauge shows 21 inches of hg rock steady at idle. One thing i didn;t note for you guys is that the drivers side front has a hissing sound between 3000 and redline. it sounds kinda wierd like it has a turbo. I do have a steeda oil separator but i dont think thats what is making the noise. I thought it was a cat on its way out but the idle vacuum test doesn't trail off so i have no reason to suspect its plugged. Also the x pipe is tight. could this be cause for conern? Its been that way since i bought the car

 

[OzzDOA]

Hissing at the driver's side tends to be the PCV valve and its little grommet. If that thing isn't perfectly sealed you will get a bit of a leak, I dabbed a bit of RTV around the rim of the PCV valve just to make sure. Its a common annoyance on both the 4v's and 2v's.

 

[joshta]

OP, are you in Rockford, IL or another state?

 

[Solo500]

Track

Went to the track last night.... horrible numbers. Couldn't do better than 15.2, so I let my dad race it and he couldn't do any better than me, and he's been racing for years! I first launched at 4k and ran a 15.6, then i tried launching from 1,500, and it was a 15.2. No differential brace or suspension mods, so I was opening it after I rolled forward. What do you think?

My Mods
-The Fix
-JBA Shorty Headers
-Stock Kumho Ecstas
-Flowmaster American Thunder Catback
-3.27 gears
-O/R X-Pipe
-NO TUNE!

 

[tmhutch]

Unless you're racing at 8000' altitude you've got a definite problem somewhere.

 

[Nazman]

unless you're racing at 8000' altitude you've got a definite problem somewhere.

+10000000000000

and I just noticed....you are in San Antonio...the SAR is a little under 600ft elevation.

 

[ponygt65]

Went to the track last night.... horrible numbers. Couldn't do better than 15.2, so I let my dad race it and he couldn't do any better than me, and he's been racing for years! I first launched at 4k and ran a 15.6, then i tried launching from 1,500, and it was a 15.2. No differential brace or suspension mods, so I was opening it after I rolled forward. What do you think?

My Mods
-The Fix
-JBA Shorty Headers
-Stock Kumho Ecstas
-Flowmaster American Thunder Catback
-3.27 gears
-O/R X-Pipe
-NO TUNE!

1) Shorty headers, didn't do much for performance.
2) Custom tune would be good to expand on mods, even over stock.

Having said those two things........stock tune, etc. you should easily be a second quicker.

What was your 60' time, and what were your shift points? I'm thinking either a prob. with the car, or short shifting like a mofo.

Oh, and no disrespect intended, but racing for years doesn't mean you can jump in any car and pull off some good numbers. all cars are setup differently.

ALso, since you have an O/R midpipe, did you turn off the O2's/Mils?

 

[Orange Stang 04]

Wow...even when I first got my license and took mine to the track I managed to pull off a 14.7 shifting at 5,500 rpm's. Something isn't right.

 

[Solo500]

JBA's add 10rwhp & tq according to paul's hp, but still that's not much. I got 2.3 seconds 60'. I tried different shift points, from 5900 all the way close to redline and still achieved similiar results. Oh yah that's understandable but my dad knows my car just about as well as I do and knows where it makes it's horsepower.

I bought Mils but they don't work so my check engine light is still on. I know wheelhop is bad, but still, 15 seconds?

(edit) I should probably mention, I beat a s197 GT w/ exhaust when I was stock, from a dig! I beat a sn95 GT last night by only a second. :shrug:

P.S. When should I be shifting in first?

 

[Double"O"]

^^^ i used to shift at 6600-6700...when my car was N/A...went 13.30s at 106 with a catback and an Hpipe