Messages

121

General Buick Tech / Re: Whats your rear susp/ tire setup for track?

« on: June 30 2013, 02:12:57 PM »

So is their a big difference in all the available aftermarket rear sway bars? I see a wide range of pricing. Is a 1" rear bar good or should it be larger? Saw a Spohn 1" bar for $174. Hellwig bar around $200ish.  Sounds like this would be a good investment since my car has stock rear bar on it.

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General Buick Tech / Re: Whats your rear susp/ tire setup for track?

« on: June 30 2013, 12:40:27 PM »

Thank you for all the input everyone. Steve, I have read most of your info on your website dealing with these cars and it is very helpful. I also think a lot of it was the crazy temps, track temp was probably super hot baking in 117 all day. I will look into a better rear sway bar and give closer inspection to the bushings. I can box my lower arms myself if that helps. I am kicking myself for trying to save a few bucks by buying the Nittos since they cost less and would last longer.    Do the MT drag radials hook that much better than Nittos? Searching on the forums I have seen people cutting good 60fts on Nittos. I would just buy slicks but have a 22 mile drive to and from track mostly all highway and don't have a car trailer. I may not have anybody go to track with me that could bring my slicks for me. The car is not a daily driver so I shouldn't have been so worried about tire wear. At least I have all summer to sort it out, not going to attempt running again until well into Sept or Oct when temps drop.
Mike
 

123

General Buick Tech / Re: Whats your rear susp/ tire setup for track?

« on: June 29 2013, 09:55:58 PM »

Thanks, what boost do you launch at?

124

General Buick Tech / Whats your rear susp/ tire setup for track?

« on: June 29 2013, 08:58:27 PM »

I was trying to get an idea of what people are running for a rear suspension setup and what tires? The reason I ask is because I took my GN to track last night here in Vegas. First of all it was record heat and still about 105 degrees at 9pm start. I could not hook up car at all with horrible 2.50 60fts. The only reason I even tried to run with the excessive heat was its the last test n tune here until end of summer and I recently bought my car and did some work on it.
My rear suspension is all stock and rear bushings visually look ok. Front susp looks like it has a fairly recent rebuild. Im running 275/60/15 Nittos on stock rims. I started at 24psi in tires and gradually dropped pressure eventually ending at 17psi with traction getting worse. I did burnouts until I saw smoke. I left the line from 10lbs boost down to idle and just roasted tires, had to pedal car a few times. Also felt tires spinning about 1/2 track with car squirrely.
Looking for some setup ideas that work well with low 60ft times. My car is stock eng internals, Precision TE44, 3 inch downpipe, stainless headers, stock IC, Precision 65lb injectors and 100 octane chip from TT. running 21lbs boost. Stock 8.5 posi rear. PTC 10" 2800-3000 non lockup stall. I just installed PTC stall after having a sorry 12" non stock converter in car. Went from building no boost and leaving like a turd to instant boost and shredding tires. Ive owned many cars and have made lots of passes on the track in the past but haven't had a car making this much power coming on so hard with the turbo. I felt like a rookie out there. Runs were similar with 2.50 60ft and 13.90s at 101mph. I believe this car has 12s in it with a good 1.60 or 1.70 60ft time. Maybe just need slicks or better drag radials? Thanks for input. It was fun running down Mustangs with 2 second head starts with the back of my car skating around.

125

General Buick Tech / Re: Downpipe cause knock reading?

« on: June 14 2013, 06:04:48 PM »

Thanks, I will add clearance downpipe to my "to do list"

126

General Buick Tech / Downpipe cause knock reading?

« on: June 14 2013, 05:21:12 PM »

Can a downpipe vibrating against the a/c evaporator box cause false knock readings on Scanmaster?

127

New Member Introductions and Welcomes! / Re: New owner from Vegas

« on: May 31 2013, 07:03:10 PM »

Welcome and how's things in Vegas???

Its already hot! Any other members here from Vegas? I very rarely see a GN around town.

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New Member Introductions and Welcomes! / Re: New owner from Vegas

« on: May 30 2013, 08:39:06 PM »

Thanks guys! Looking forward to enjoying my Buick.

129

New Member Introductions and Welcomes! / New owner from Vegas

« on: May 29 2013, 07:51:20 PM »

Hi all. Just bought my 87 GN in April and working through the bugs. Almost got the car where Im happy. I am waiting for my 60lb inj and 100 octane chip from TT and my Nittos. Just in time for it to be super hot here in LV. Our car season is kinda opposite here when the car doesnt go out very much in the summer. Looking forward to learning more about the turbo cars from this and other boards. I am a heavy truck mechanic for a living.

Mike