fwd cobalt stocker

efi v6 · 12-19-2010, 09:37 PM

I am thinking of building a 2008 cobalt 2.2 auto. for stock classes. Does anybody on this fourm run one? I ran the car in all oem trim best et 16.30@ 84.20 with k&n filter in stock air filter housing and some tuning ( by myself ) with hp tuner software went 15.89 @ 86.87 ! Ran out of testing time as the tracks in the northeast are all closed for winter. What do you guys think.

Tony K.

greg fulk · 12-19-2010, 10:16 PM

Well it's a Natural D/FS with an index of 15.60 needs to weigh 2830 with you in the car so??? Ya might just get their. you "could " add weight to make it an E/FS but would need to weigh 3670 with you in it! 17.65 index though

Jeff Lee · 12-19-2010, 10:48 PM

1320 / MPH = optimum ET.
Using your numbers, if you had slicks / suspension / convertor sorted out for drag racing (not street / strip) and without lifting the hood, you should be capable of running 15.20's or .400 under the index. Keep in mind slicks may be a lower profile than your street tires (you still are on street tires, right?) which will not only aide in traction but will give you a lower gear ratio. That right there could get you in the 14's.
This is the exact path I had with my street '87 Dodge Dayton Shelby Z (2.2L inter-cooled turbo). It had a MP computer and a cat-back. It ran 15.40's with Radial T/A street tires and poor traction. I was already about .400 under. I added slicks and tuned the waste gate and boost, an open exhaust and air filter, advanced timing, race gas and Koni shocks with M/T slicks was good enough tho set the B/FS record @ 14.17 without ever having the valve cover off the 75,000 mile engine.
I then rebuilt & blueprinted the engine with gapless rings and refined the a/f mixture and set the A/FS record at 13.26.
I say you go for it and I hope you can dedicate your energy into it for a lot of fun. Ideally it's not your driver (like mine was).
Good luck!

THE LEGEND · 12-20-2010, 01:44 PM

My son had a 4dr model. We did absolutely nothing to it and it ran within1/2 seccond of the index. We were gonna tinker with it until he decided his front bumper looked better on the back of a mini-van.
It will work
Chip

Michael Beard · 12-20-2010, 02:27 PM

My wife had one a few years ago as well, and it ran similar to Chip's kid's. Ran it across the scales, and it was over 3000#. I've called this one out as a sleeper Stock combination a couple of times! Git 'er done.

efi v6 · 12-20-2010, 07:29 PM

Thanks for all the help and support gentlemen. Jeff , yes that was on stock street tires 195x60x15. What do you think of trying drag radials instead of slicks? also see IHRA has fwd auto.classes I think it will fall in the EF/SA index 15.90 or FF/SA index 16.30. I got a dc sport 4 into1 header and a cat.less downpipe on the way. What about fuel what do you guys think i shoud run. Thanks for all the help.
Tony K.

Jeff Lee · 12-21-2010, 01:19 AM

Quote:

Originally Posted by efi v6

Thanks for all the help and support gentlemen. Jeff , yes that was on stock street tires 195x60x15. What do you think of trying drag radials instead of slicks? also see IHRA has fwd auto.classes I think it will fall in the EF/SA index 15.90 or FF/SA index 16.30. I got a dc sport 4 into1 header and a cat.less downpipe on the way. What about fuel what do you guys think i shoud run. Thanks for all the help.
Tony K.

You need a low profile drive tire that will hook. You have to use race gas that is approved as street fuel will not pass tech.
I wouldn't worry much about the engine for now. Get a good convertor, better gears (if available) and stiff front shocks for better traction. Low powered cars really benefit from light wheels and tires.
Always pay attention to your MPH. That is your own personal dyno. ET is relative to MPH.

greg fulk · 12-21-2010, 03:07 AM

VP C-10 is unleaded & 98 motor octane. It should do fine.

art leong · 12-21-2010, 10:49 AM

Quote:

Originally Posted by Jeff Lee

You need a low profile drive tire that will hook. You have to use race gas that is approved as street fuel will not pass tech.
I wouldn't worry much about the engine for now. Get a good convertor, better gears (if available) and stiff front shocks for better traction. Low powered cars really benefit from light wheels and tires.
Always pay attention to your MPH. That is your own personal dyno. ET is relative to MPH.

Jeff on the tires there is a problem m/t doesn't make the 20" tall tires anymore.
Another thing is to stiffen the rear suspension as much as possible weight transfer is your enemy.

efi v6 · 12-21-2010, 06:33 PM

Thanks for all the info.guys,Greg checked out C-10 race fuel from what I see it should work just fine Thanks. Talking about fuel, how do IHRA and NHRA do fuel checks ? do I need to have a way to get fuel from the fuel rail? If so what do I need.Any other help anybody has will greatly be appraceated. Thanks again looking forward to running stock classes and having some fun.
Tony K.

12-19-2010, 09:37 PM	#1
efi v6 Junior Member Join Date: Mar 2010 Posts: 34 Likes: 0 Liked 0 Times in 0 Posts	fwd cobalt stocker I am thinking of building a 2008 cobalt 2.2 auto. for stock classes. Does anybody on this fourm run one? I ran the car in all oem trim best et 16.30@ 84.20 with k&n filter in stock air filter housing and some tuning ( by myself ) with hp tuner software went 15.89 @ 86.87 ! Ran out of testing time as the tracks in the northeast are all closed for winter. What do you guys think. Tony K.

12-19-2010, 10:16 PM	#2
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: fwd cobalt stocker Well it's a Natural D/FS with an index of 15.60 needs to weigh 2830 with you in the car so??? Ya might just get their. you "could " add weight to make it an E/FS but would need to weigh 3670 with you in it! 17.65 index though __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

12-19-2010, 10:48 PM	#3
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: fwd cobalt stocker 1320 / MPH = optimum ET. Using your numbers, if you had slicks / suspension / convertor sorted out for drag racing (not street / strip) and without lifting the hood, you should be capable of running 15.20's or .400 under the index. Keep in mind slicks may be a lower profile than your street tires (you still are on street tires, right?) which will not only aide in traction but will give you a lower gear ratio. That right there could get you in the 14's. This is the exact path I had with my street '87 Dodge Dayton Shelby Z (2.2L inter-cooled turbo). It had a MP computer and a cat-back. It ran 15.40's with Radial T/A street tires and poor traction. I was already about .400 under. I added slicks and tuned the waste gate and boost, an open exhaust and air filter, advanced timing, race gas and Koni shocks with M/T slicks was good enough tho set the B/FS record @ 14.17 without ever having the valve cover off the 75,000 mile engine. I then rebuilt & blueprinted the engine with gapless rings and refined the a/f mixture and set the A/FS record at 13.26. I say you go for it and I hope you can dedicate your energy into it for a lot of fun. Ideally it's not your driver (like mine was). Good luck! __________________ Jeff Lee 7494 D/S '70 AMX

12-20-2010, 01:44 PM	#4
THE LEGEND VIP Member Join Date: Aug 2002 Location: Fayetteville, n.c. Posts: 1,411 Likes: 0 Liked 1 Time in 1 Post	Re: fwd cobalt stocker My son had a 4dr model. We did absolutely nothing to it and it ran within1/2 seccond of the index. We were gonna tinker with it until he decided his front bumper looked better on the back of a mini-van. It will work Chip

12-20-2010, 02:27 PM	#5
Michael Beard VIP Member Join Date: Sep 2002 Location: Columbus, OH Posts: 4,060 Likes: 0 Liked 13 Times in 9 Posts	Re: fwd cobalt stocker My wife had one a few years ago as well, and it ran similar to Chip's kid's. Ran it across the scales, and it was over 3000#. I've called this one out as a sleeper Stock combination a couple of times! Git 'er done. __________________ Michael Beard - NHRA/IHRA 3216 S/SS

12-20-2010, 07:29 PM	#6
efi v6 Junior Member Join Date: Mar 2010 Posts: 34 Likes: 0 Liked 0 Times in 0 Posts	Re: fwd cobalt stocker Thanks for all the help and support gentlemen. Jeff , yes that was on stock street tires 195x60x15. What do you think of trying drag radials instead of slicks? also see IHRA has fwd auto.classes I think it will fall in the EF/SA index 15.90 or FF/SA index 16.30. I got a dc sport 4 into1 header and a cat.less downpipe on the way. What about fuel what do you guys think i shoud run. Thanks for all the help. Tony K.

12-21-2010, 03:07 AM	#8
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: fwd cobalt stocker VP C-10 is unleaded & 98 motor octane. It should do fine. __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

12-21-2010, 06:33 PM	#10
efi v6 Junior Member Join Date: Mar 2010 Posts: 34 Likes: 0 Liked 0 Times in 0 Posts	Re: fwd cobalt stocker Thanks for all the info.guys,Greg checked out C-10 race fuel from what I see it should work just fine Thanks. Talking about fuel, how do IHRA and NHRA do fuel checks ? do I need to have a way to get fuel from the fuel rail? If so what do I need.Any other help anybody has will greatly be appraceated. Thanks again looking forward to running stock classes and having some fun. Tony K.