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About to install a new hydraulic roller and the new bee hive springs are producing about 175 pounds at the seat. I am presently using the stock rocker arms and was wondering if they would be able to handle this. Has anyone run that much pressure without roller rockers?

I got a GN a little while back and started having some transmission problems. I took it to a local trans guy and since then everything has been going well so I didn't think much of it. I just had my car on my lift and happened to see that the converter was a D7. It's possible that he swapped the...

Have a couple racing videos of my family and some other stuff from Division 1 NHRA. No buick stuff, but when my car is done next year, it'll run Junior Top Stock. Let me know what you think. YouTube - Broadcast Yourself.

Selling a never-used Dynotech Transmission along with a stock D5 converter and a street-strip converter. Located in Northern New Jersey. $1250

1987 GN - T-Tops New motor - - .20 over diamond pistons - worked heads with new valves, springs - new lifters, reed cam, ta-49 turbo, timing chain, oil pump - 42.5 injectors, cold air intake, 8-way adjustable chip, more to list Newly rebuild trans in the car - also comes...

I just got my hands on a manual boost controller and i'm kinda confused. Directions say that the one fitting connects to the turbo and the other outlet connects to the wastegate? If thats the way it works, what do i do with the hoses running to those points now and also the hose running to the...

Went to englishtown last night 60' 1.88 1/4 12.62 mph 108.2 ta-49, walbro 340, 009's, atr headers, I was running about 41* of fuel pressure and about 18* of boost. Any tuning suggestions besides lower the 60's? haha :confused:

Went to e-town with my GN last wednesday and i'm having a problem with 60 foots and i was sure that it was the fuel pressure so i tried it everywhere from 35 to 45 pounds and in between. I've come the to the realization that i think its the converter that is the problem but when i asked a fellow...

Went to Englishtown yesterday with a friend and decided to make a couple passes in the process. First two runs went fine. Took off at about 2000 rpm and i was only running about 16* of boost. Ran two 12.90's. The third run, i decided to step it up a little bit and leave a lot higher and jack up...

T-top car for sale. All trades welcome. Trans has 4000 miles on it. New motor has 3000 miles on it. 42.5# injectors, ta-49, hot wired 340 fuel pump, atr headers, many more modifications. Looking for a trade mainly but will sell too.

My 87 GN has the stock converter, stock rear and rebuilt trans i am footbraking the car on the line to about 5# and can't seem to manage better than a 1.9 60' the car runs mid 12's at 108 any ideas

Went to e-town wednesday night with the usual set-up. ta49, 42.5# injectors. The exact combo that i went 12.50's with at the end of last year. First pass, i footbrake it up to about 6# and the car felt really doggy. 2.2 60 foot. It really felt like the trans was slipping because a little before...

Planning on running my 87 gn in stock eliminator for the second half of the year. My question is, are the heads on the 1989 turbo trans am the same as the heads on the 87 grand national. I have been told they are different, but i know that the NHRA rates them as identical motors with the same...

1987 Buick Grand National with about 70,000 miles on it. Newly rebuilt motor has 1000 miles on it. New rods, 20 over pistons, lifters, little larger cam, new rockers. New ta-49 turbo has the same amount of miles on it as new motor. Walbro 340 fuel pump by Armstrong, hotwire relay to pump, new...

Putting a new painjob on my car. Wondering if anyone knows the number or website be of a reasonable priced painter on the east coast. Any help is appreciated.

Went to Island Raceway today and took my 87 GN out for the first time with the engine rebuilt and the ta-49 on. First pass, I went a 14.0 with a 2.2 60 foot and 15 pounds of boost. Second run was a 13.5 and ad 2.0 60 foot at the same boost. The third run, I put the boost up to 17, and spun the...

Just got done building the motor and ran it for a while with no problems. Then, I was driving and it studdered and died after about 5 minutes. I let the car sit and it ran for a while and then did the same thing and so on and so on. Any ideas?

I just got the new EGT probe from computech and i'm deciding where to put the probe. My first guess was to put it on the downpipe after the turbo but after reading some threads i see that people put in mostly on the passenger side header. What are the advantages, disadvantages of putting in on...

I'm rebuilding my entire engine and im at the point of putting the cam sensor in and i was wondering if the placement of this sensor matters. If it does, what is the correct proceedure for placing it. Thanks for any help/.

I'm in the process of having the motor rebuild and its going to had stock compression but lightweight pistons, balancing and honing by Westin and a 212/212 hydraulic cam. I took the heads to Whitaker to have it done and they are presently being ported and polished. I was planning on leaving the...