My 79'GP

[nyos79]

It's my 79 Pontiac Grand Prix. Best 1/4: 14,059s. Stock LS1 and 4L60E (from Camaro'98 europe version only 286hp) and stock rear end (7,5", 2,14).

I'm rebuilding engine on about 450hp, buy and rebuild 4L80E and mods rear end in this year.
Target: 11,999s

 

[pontiacgp]

That is very impressive with 2.14 rear gears. You need to find a mile long track....

 

[nyos79]

and I have a question: I plan to buy to my oryginal rear end (7,5" 10 BOLD, 2,14 no LSD):

- Differential Moser Engineering 542044, 10 Bolt 7.5 (3.23-up), 26-Spline
- C-Clip Replacement Axles Moser Engineering A102601, 26-Spline

for engine power 450hp, fast gearbox. What do you thing about it? It will be strong enough?

 

[nyos79]

That is very impressive with 2.14 rear gears. You need to find a mile long track....

Max speed on highway 255 km/h measured by GPS. I will not repeat it ever again. I lost two frames from the windshield

Now I want 3.23 but for 7.5 " I do not know if the rear axle can withstand 450hp, what do You think about it

 

[pontiacgp]

Some guys on this forum has used the 7.5" rear in their car on the drag strip and they stand by it.

 

[nyos79]

great news, thx

 

[kalidromos13]

Hey there! Welcome from California! I really enjoy seeing our European counterparts out there having fun with these cars! What country do you reside?

 

[nyos79]

Hey there! Welcome from California! I really enjoy seeing our European counterparts out there having fun with these cars! What country do you reside?

Poland, but in my country g-body is not popular but f-body is a lot of, in this year I must win 1/4 mile my Pontiac with my wife (stock vette C5)

 

[kalidromos13]

Poland, but in my country g-body is not popular but f-body is a lot of, in this year I must win 1/4 mile my Pontiac with my wife (stock vette C5)

Yeah, thats mostly true here in the States. F-Bodies are much more popular, so you're trying to make the GP as fast as your C5?! haha nice! Looks like you have a lot of upgrades done to your car! I like it! Thanks for sharing with us!