needs some tech help please... [Archive]

98MODMTR

10-25-2003, 12:10 PM

...Dads car is 97 C5 with 40,000 on the odm. I took it out for a spin last night and this car just shits and gets. (people tell me its a 13 sec car from the factory, I will throw the BS flag all day long on this one), but I could tell when I was slowing to a stop (and only to a stop) that it had a sort of choppiness to the idle. THe only thing I can think of is that the spark plugs needed to bechanged. He said they are the orginal plugs and wires. :o What do you think I should do with it? If it wasn't for me, the car wouldn't get driven....so he dosen't really concern himself with the car. But I know nothing about this car and won't ever for a second say I do. All I can think of is taking to the only vette guy I know of and that is "Formatos Fasterproms, Inc." Jeremey Formato to check the car out. Well, please let me know your opinions on what to do.

Thanks in advance.

Jayson

http://www.tamparacing.com/gallery/data/500/10961Dads_vette_2_for_email.jpg

Nick

10-25-2003, 12:45 PM

Yeah that could be your problem along with other things. A friend got 12.8@110 out of a stock C5 so start doing a tune up.

Mars_302

10-25-2003, 01:03 PM

They use platinum plugs in them so 40k isnt much on them but that 6 years old, I would change them.

ZDriver96

10-25-2003, 01:31 PM

Most stock vettes ive seen run 106-108 stock 13.3-13.6.
Platinums are suppose to last a long time. I'd change em.. not to hard of the LS1. 6 years on wires could do it though..
hook up a fuel pressure gauge and check what your fuel is doing when its cutting in and out.. could just need a new fuel filter.
Probably something really simply like that..

98MODMTR

10-25-2003, 02:12 PM

Thanks for the info on the plugs/wires/fuel fliter. I will take it to that guy and tell him to replace all 3. Well, after he gives me his "professional" opinion.

But at far as 1/4 times go. This fucking thing pulls like a raped ape. My stang off the bottle could run mid 13's and this thing would rape it, especially from a roll. I don't know. I guess when he goes to Cali in January, the car is going to BMP.

BlackZ28

10-25-2003, 03:05 PM

c5's are about low 13s, havent heard of any 12s out of a completely stock one and its been out for a while. its strong and straight torque curve is why it feels so much stronger than your stang.

98MODMTR

10-25-2003, 03:36 PM

Well, only one way to proves its guts. BMP and the 1320!

ZDriver96

10-26-2003, 01:40 AM

From a roll the vettes pull hard to... they are so aerodynamic... so the faster u get your gains are greater... Drag double in smaller intervals as mph increases... so with a drag coeffiecent of .29-.30 and a small surface area... drag will affect it but not as much as other cars.

TheShow50h

10-26-2003, 01:54 AM

Is that a 6spd or an auto? I've heard of and read about stock c5's running 12.9s bone stock if it's a 6spd

98MODMTR

10-26-2003, 01:21 AM

Originally posted by TheShow50h
Is that a 6spd or an auto? I've heard of and read about stock c5's running 12.9s bone stock if it's a 6spd

Negative mang....A4 here :(

This outta be interesting....keep an eye open. I will post when it gets closer to January about taking her out there. Maybe I can suprise myself as well as a few others. As you can see from the above pic, thats as close as it has gotten to the track.:(

TheShow50h

10-26-2003, 06:04 PM

If you can get that c5 a4 into the 12s stock, you the man! Better bring A LOT of ice for that intake, pump up front air tire pressure. Drop rear tire pressure, and loosen or take off the front sway bar for the trip. :D

98MODMTR

10-26-2003, 06:13 PM

Originally posted by TheShow50h
If you can get that c5 a4 into the 12s stock, you the man! Better bring A LOT of ice for that intake, pump up front air tire pressure. Drop rear tire pressure, and loosen or take off the front sway bar for the trip. :D

Negative ghost rider, the tire pressure will be full :lol:

as well as the sway bars staying in place.

It ought to be interesting to say the least.:o

TheShow50h

10-26-2003, 09:17 PM

bone stock off the showroom floor I'm going to have to say that the car isn't capable of running 12s. We shall see though!!

98MODMTR

10-26-2003, 10:23 PM

Originally posted by TheShow50h
bone stock off the showroom floor I'm going to have to say that the car isn't capable of running 12s. We shall see though!!

yes, yes indeed. :D

corey r.

10-26-2003, 10:47 PM

I remember talking to you and your dad when that pic was taken at track day. Cool car. 8)

98MODMTR

10-27-2003, 01:20 PM

Originally posted by corey r.
I remember talking to you and your dad when that pic was taken at track day. Cool car. 8)

Thanks, its only had about 3-4K miles put on it since you last saw it.:o

HybridSS

10-27-2003, 07:29 PM

The stock Platinum plugs suck major ass. Most of the time the platinum "pucks" fall off the tip and the gap become in the .070 range. Way too big. Put some NGK TR55 plugs in there gapped at stock. They are much better than the AC delco platinums and they are only $2.00 each instead of the $9.00 each for the platinums. The MSD superconductor wires are very cheap but also about as good as it gets. New filter wouldnt hurt either.

98MODMTR

10-28-2003, 07:11 PM

Originally posted by HybridSS
The stock Platinum plugs suck major ass. Most of the time the platinum "pucks" fall off the tip and the gap become in the .070 range. Way too big. Put some NGK TR55 plugs in there gapped at stock. They are much better than the AC delco platinums and they are only $2.00 each instead of the $9.00 each for the platinums. The MSD superconductor wires are very cheap but also about as good as it gets. New filter wouldnt hurt either.

I was wondering when you would chime in. THanks, I will go to discount.

98MODMTR

11-04-2003, 10:24 AM

Originally posted by HybridSS
Put some NGK TR55 plugs in there gapped at stock. The MSD superconductor wires are very cheap but also about as good as it gets. New filter wouldnt hurt either.

I got the plugs from Discount for 1.61/pc

Picked up the MSD's from A&E for 51.xx

The fuel filter has to come from chevy and I guess its not too much for the 97 and then I am being charged $100 for the tuneup/install.

discuss....

Gunslinger09

11-04-2003, 10:50 AM

Originally posted by 98MODMTR
I got the plugs from Discount for 1.61/pc

Picked up the MSD's from A&E for 51.xx

The fuel filter has to come from chevy and I guess its not too much for the 97 and then I am being charged $100 for the tuneup/install.

discuss....

Jayson,

Are you high? $100 for the plug and wire change do that shit yourself man. It can be done in an hour or so in your drive way with common hand tools. BTW does the car have an aftermarket filter or air box? I don't think you mentioned that if it does.

BlackZ28

11-04-2003, 02:09 PM

Originally posted by 98MODMTR
I got the plugs from Discount for 1.61/pc

Picked up the MSD's from A&E for 51.xx

The fuel filter has to come from chevy and I guess its not too much for the 97 and then I am being charged $100 for the tuneup/install.

discuss....

which discount did u go to? i went to the advanced auto here by gaither high school northdale area, and they are out of the NGKs. and where is A&E at? i need those msd wires for my 96 Z. thanx

98MODMTR

11-04-2003, 06:18 PM

Originally posted by Gunslinger09
Jayson,

Are you high? $100 for the plug and wire change do that shit yourself man. It can be done in an hour or so in your drive way with common hand tools. BTW does the car have an aftermarket filter or air box? I don't think you mentioned that if it does.

Dude, I am not about to wrench on that car. I have heard to many war stories. My dad is footing the bill for it all.

I got the plugs from the bloomingdale discount and the wires from the 56th st AE.

HybridSS

11-05-2003, 02:31 AM

Sounds good. $100 would be ok if he is doing the filter too. That would be about the going rate.

I usually charge $50-70 for plugs and wires depending on year and mods in the way. So if pops is paying that aint too bad.

98MODMTR

11-05-2003, 12:09 PM

Ya...it may be a bit over priced. But as long as dad is happy and I get to keep driving it. Its ok with me. I will be sure to let you guys know the out come. My dad just told me now to look into some tuning that can possibly be done with the computers.

discuss.....

Gunslinger09

11-05-2003, 01:08 PM

Jayson,

Tell your dad to drop some coin on a K&N FIPK or Donaldson Blackwing air intake and some free flowing exhuast first. Then with the tune adjusted I would not be suprized to see 340/350 at the tires on the dyno and 12.8 @ 108 or so at the track.

URFUCT

11-05-2003, 09:13 PM

hmmmmm....stock 97 A4 C5? Id be suprised to see -a low 13@105, I'd actually be suprised if it put down over 300 at the wheels.:o

Gunslinger09

11-06-2003, 10:14 AM

Originally posted by URFUCT
hmmmmm....stock 97 A4 C5? Id be suprised to see -a low 13@105, I'd actually be suprised if it put down over 300 at the wheels.:o

Well 97-98 LS1s are the same motor with no changes as far as I know. My car with Lid freemods and stock exhuast made 298 at the rear tires and ran a 13.3. Joe99SS ran a 13.00 with his dads 98 C5 vert with a CAI, and Catback so I think it could be done easy using that recipe.

98MODMTR

11-07-2003, 01:34 PM

ok guys....took her in for some new plugs and what not. Well, little did I know....the diagnositc showed that my problem was...one of the computers was thinking (while slowing down) that the tires were breaking loose, so the traction control was kicking on/off to keep the tires from spinning. Well, he cleaned up the connections and all was fixed. Well, it started back up. So we are going to take it to another comp so he can clear out the "active handling" that this car dosn't have and we aren't sure as to how it got on the computer. Oh well, she is still running great.