86 vs 87 3.8 turbos

[eagleguy]

For the GN's, T Types and Turbo T's motors is there any notable difference between the two years such as HP etc.?

 

[626gn]

Only on paper.

 

[~JM~]

Supposedly there was an increase of 10HP & 25 Ft.Lbs. of torque from '86 to '87.

http://www.gnttype.org/general/product.html

 

[626gn]

Supposedly there was an increase of 10HP & 25 Ft.Lbs. of torque from '86 to '87.

http://www.gnttype.org/general/product.html

Exactly my point. Different numbers on paper but same real world performance. Neither one is faster than the other all else being equal.

 

[Shawn N]

The 87 hp rating was taken at a higher rpm than the 86 which is why it's 10hp higher. There is no difference.

 

[~JM~]

I noticed that. I also noticed that the higher '87 torque numbers were taken at a lower RPM. That is why I started the sentence with "Supposedly".

Most likely just a difference in testing methods, or testing equipment.

 

[eagleguy]

torque at a lower rpm is better is it not?

 

[eagleguy]

This was an engine question. Why was it moved??

 

[V6sleeper]

I think it had something to do with the factory computer chip from 86 to 87.

 

[eagleguy]

Never thought about that. Thanks

 

[dynoman]

I thought the boost was programmed different (increased) for 87 .

 

[Shawn N]

84/85 10 lbs 86/87 12lbs GNX 15lbs are the factory settings

 

[1986 Buick GX1]

I believe the 235/ 245 HP was just advertising.
During baseline testing by Kenne-bell and ATR, both the '86 and '87 came in at 265 HP. I'm not sure if that was dyno'd HP or calculated from 1/4 mi times.

Who would buy a new Turbo Regal / GN unless it had more power than last year?

 

[626gn]

I believe the 235/ 245 HP was just advertising.
During baseline testing by Kenne-bell and ATR, both the '86 and '87 came in at 265 HP. I'm not sure if that was dyno'd HP or calculated from 1/4 mi times.

Who would buy a new Turbo Regal / GN unless it had more power than last year?

265 sounds about right. 270 is the number I had in my head going off memory.