leed

I'd be more than happy to take more video...
Your GN gives me wood.

billsgn

Now there's a scary thought!!!

Chacko

Hey bill what did you GN run when it was factory?

leed

I have seen stockers run 14.2ish at the track. Dont know the pulished times. The 87 GNX was the fastest American production car that year.

J-SMITH69

1986 Buick Regal Grand National 4.9 13.9

1987 Chevrolet Camaro IROC-Z 6.6 14.9

1985 Chevrolet Corvette 5.7 14.1

1985 Chevrolet Monte Carlo SS 7.8 15.9

1987 Ford Mustang GT 6.7 15.3

1987 Pontiac Firebird Trans Am GTA (auto) 7.1 15.5

tranceminister

Aww now don't get discouraged at the dyno results. Thats the whole idea behind it. It's all part of tuning. You get a reading and you build upon it.

billsgn

Most 86/87 GN's will run low 14's bone stock, unfortunately I never ran mine until after some mods. Infact, my first time slip with the car was a 11.29 @ 120 mph at Bremerton. This was in race trim but the car was running poorly due to a problem with the fuel pump. I decided at that point to only run the car in street trim and work on tuning for max perf. I have since been able to get an 11.08 @122 mph timeslip in street trim and feel the car is ready for some mid 10's in race trim.

BTW, my car has a stock block, stock heads (ported) with upgraded turbo, front mount IC and bigger injectors.

88crxSi

port and polish, bigger turbo, ,FMIC and fuel injectors and u shaved off 3 seconds! anything else under there??

Chacko

nah the GN blocks are just God.

I am hoping to run my GN before the season ends, its bone stock. But I think the turbos starting to give out.

Any chance you could put up pics of your intercooler? I have an 84 GN, so its the non-intercooled model. Well its my grandmothers; but its sitting in my garage.

ollie

Hey Jeff,
Guys great video.
Umm..... 334 hp and you are disappointed?!
correct me if I'm wrong but,that sounds pretty good to me.
ollie~