So ive read before you can increase the horse power or torque in a 850 by replacing the original throttle plate with a 960 throttle plate. Any truth to this? my 93 850 is minty clean, engine strong, and a non turbo, just trying to see if there is a way to get a bit more power. Im sure there isnt much i can do other than buy a turbo model, but I thought I would ask. Thanks

 

I've never heard that one. I suppose that if it bolts up you can try it but I doubt that you will achieve your goal since the engine computer may become confused. You'll just have to test and see.

I doubt that it will add enough horsepower to notice.

 

thanks for the info, i figured there isnt much I can do to increase the horse power, just thought i would put it out there and see. cheers

 

 

Modifications to factory settings typically result in a lot of money being wasted while the aftermarket manufacturer pours another glass of champagne.

Today's cars are not designed for performance mods and any "improvements" are made at the expense of something else.

No one has the resources that the factory has for tuning the engine. Leave it alone.

Now, if we were working on an old 350 Chevy engine, there are lots of things that will change horsepower. But, that's another era.

 

Do you think of 1993 as "Today"? I have to admit I do too.

 

 

Assuming the '93 N/A 850 TB is the same as the other MYs (not positive but assume it is) then the ONLY difference between your N/A throttle plate and the 960/S90 plate is the latter does not have the plastic puck attached to it. The non-pucked plate will give slightly quicker throttle response at initial opening, but no other effects. It will not affect hp at all.

 

 

What's bigger than what? I.e. WTH are you talking about? The 850 N/A plate is bigger than the 850 turbo plate, but the OP has an N/A, so how is this relevant? The 960 plate is the same diameter as the 850 N/A.

To OP: The only thing you should do is check the airbox thermostat to make sure it's not stuck open. Most likely, it is.

https://www.matthewsvolvosite.com/fo...le.php?id=1280
above from this thread: https://www.matthewsvolvosite.com/fo...php?f=1&t=8830

 

The N/A already has the 3" throttle body. The only difference between the two plates is a plastic puck that helps with throttle response. I SERIOUSLY doubt you will see, feel, experience anything making that change. You can modify your existing if you want by removing the pucks and brazing up the holes. (I should have read gdogs comments before posting, redundant info)