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850 N/A Throttleplate Modifications

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This topic is in the MVS Volvo Repair Database » 850 N/A Throttleplate Modifications
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cdnbluez
Posts: 124
Joined: 14 January 2011
Year and Model: 09 C30/98 V70/99 S70
Location: Toronto, Canada
Been thanked: 3 times

Re: 850 N/A Throttleplate Modifications

Post by cdnbluez »

mtbmx wrote:i found 960 plates online for under 4 bucks, but it says for 67mm housings. So does that make the plate 65mm?

Please post the website where you found the plate for $4
2007 C30 T5 6 Speed
2005 S40
2006 XC70
2014 Mercedes E350
1996 Corvette Convertible LT4
Previous Volvos:'09 C30 5 speed, '99 S70, '99 S70 5speed, '98 V70 SE, '04 XC70, '01 V70, '02 V70 awd, '97 855, '90 745 Turbo+, '90 745 16v, '89 780 Bertone Turbo+, '86 760 Turbo+, '82 240 GL

Fish stick88
Posts: 543
Joined: 24 June 2010
Year and Model: 1994 - 850 Sedan
Location: Iowa

Post by Fish stick88 »

Need some input here!
Which is better?
I've been looking around for just changing out the plate as it would be much cheaper and much easier, are the 850, and 960's share plates? aside from the plastic?
Speed has never killed anyone, suddenly becoming stationary... That's what gets you.

'94 850 Sedan - 160k miles

9394volvo850s
Posts: 239
Joined: 12 October 2009
Year and Model: 93 850 5spd 94 850T5
Location: New York

Post by 9394volvo850s »

the plates are the same. i just use the whole TB. its eaiser that way. 960 TB on the 93 N/A and 94 turbo.
93 850 5spd 320k (the daily)
94 850 T5 190K (race car)
95 T-5R wagon yellow (summer wag)
90 745 5spd 295k (winter wag)
67 122 2 door 4spd 69k :))

Ben850
Posts: 1613
Joined: 8 September 2011
Year and Model: 1996 850 R Wagon
Location: Michigan
Been thanked: 7 times

Post by Ben850 »

I've collected a couple 850 N/A throttle bodies and a few throttle plates over the months I've been pulling parts. I did this mostly in case of mistakes, and to be sure I had the right parts. I figured I would eventually do this modification.

Last week I found a '94 with VVIS like my '93 So the throttle body had the same vacuum attachments as mine. I brought that home, but never came across a 960 donor throttle plate. The extra throttle body was in case I did'nt like the mod, my original one is still in tact.

So I had a couple throttle plates to experiment with. Luckily I took my time and did a pretty good job of hand filing the obstructive area. I actually used a hand file that I had previously used to finish Formica edges. It was a little time consuming, less than two hours, but no mistakes.

So I did the battery disconnect reset and drove about twenty miles, city and highway. It felt like the ECU had learned the new setup by then.
What I can say, is that it has given it a consistent throttle feel whithout the flat spots it had before.
And my early N/A , having the VVIS manifold, had extremely noticeable peaks and valleys in the powerband.
It's almost like a normal car now, ha.

Anyway I was never in a rush to do this mod, but I am not disappointed. I see no problems with it.
Have Fun.
Attachments
Replaced a few vacuum lines while I was there.
Replaced a few vacuum lines while I was there.
throttle installed.jpg (38.28 KiB) Viewed 3547 times
VVIS type with vacuum tubes.
VVIS type with vacuum tubes.
Throttle body done.jpg (63.13 KiB) Viewed 3547 times
This is all the material that was needed to be removed.
This is all the material that was needed to be removed.
comparison plate2.jpg (57.02 KiB) Viewed 3547 times
I tapered the leading edge smoothly
I tapered the leading edge smoothly
comparison plate.jpg (54.29 KiB) Viewed 3547 times
I seem to be doing a lot of things manually lately.
I seem to be doing a lot of things manually lately.
Plate tools.jpg (97.6 KiB) Viewed 3547 times
1993 850 GLT , You wouldn't know it.
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)

mrwillie
Posts: 143
Joined: 23 November 2011
Year and Model: 1994 855 base
Location: Raleigh,NC

Post by mrwillie »

I ran across a 65mm ford mustang throttle body on CL today for cheap, and had a thought.

Would the throttle plates from any other manuf/vehicle fit in the 850 NA throttle body? Not a car that uses a volvo engine, but something from another car maker altogether?? For instance, assuming the screw holes are close or can be made to fit, can I use a throttle plate off of a mustang or explorer 302? Or even a generic holley throttle body??

Inquiring minds want to know.....

Mindlink
Posts: 3
Joined: 4 March 2013
Year and Model: 1997 850
Location: United States

Post by Mindlink »

In case you find yourself reading this thread and wondering where you can find 960 throttle plates to upgrade your 850's throttle plate, Snabb sells them online.

http://www.snabb.us/960-Turbo-Big-Bore- ... _p_91.html

98T5
Posts: 320
Joined: 11 August 2007
Year and Model: V70T5,98' / 940,93'
Location: Texas

Post by 98T5 »

what does N/A mean? :?:
98’ S70 T5 Turbo Manual - Midnight
01' S60 T5 Turbo- Brandy
98' V70 T5 Turbo - Swifty
93’ 244 n/a - Mr.Chill
91' 940 SE Turbo - Mojo SOLD
83' 242 DL - Bluto SOLD
93' 940 Wagon - Django - SOLD
:mrgreen: 8) :mrgreen:

Ben850
Posts: 1613
Joined: 8 September 2011
Year and Model: 1996 850 R Wagon
Location: Michigan
Been thanked: 7 times

Post by Ben850 »

98T5 wrote:what does N/A mean? :?:
Normally aspirated. (Non-Turbo)
1993 850 GLT , You wouldn't know it.
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)

Anna Can
Posts: 1
Joined: 25 November 2016
Year and Model: 850 1995 850 1996
Location: Canada

Post by Anna Can »

Having extra throttle in garage I removed plate cut off plastic and soldered hole , well polished after it looks well, please tell me what I should expect after this modification. My 1996 is Canadian version with 10 valves so it has small 55 mm throttle. I have some ducting to make airflow easier, thinking about K&N filter or similar.

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