Realistic BHP Increase for 850 2.0 20v NA

[Mck1]

Hi all,

I currently own a Volvo 850 2.0 20v 1994 Estate (143BHP standard)

I'm looking to inprove it's performance, current mods:

Cold Air Intake & Cone filter - approx 2-5 BHP
Improve Air Delivery- N/A Engines w/ VVIS Mod - Proven 9 BHP upto 4100 RPM

Poss fitting a chip - approx 10BHP

Total = Max 167 BHP

Do these figures sound realistic & any other modification tips.

Many Thanks.

Chris.

[ChrisMClark]

I have the 2.0 20v in my saloon, and I've thought mods, personally I'm waiting a bit then PXing my 2.0 20v for a T5.

[volvoturboman]

A remap mate, my 2.5 10v can be remapped from 140 to 170 so I'm sure it could do somthing for you.

[Wobbly Dave]

Best thing to do is sell it and buy a T5 - if power is what you are after?

[Mental Wealth Doctor]

my first 850 was a 2.0 n/a, put a thing called an eco tek valve on her, made a strange sound, but definate throttle response improvement, and generaly more beans. but have to agree get a turbo 850

[Tomcat]

If you really want to get a decent power upgrade without changing upto a T5 then getting it to breath better would be your first priority, fit a decent filter and a good exhaust system, this will give you another 10-15bhp, after that you could try speaking to people like kent cams about higher lift camshafts. You could look at porting the head although that would entail removing the head from the car. There's a guy over on Volvospeed who did a serious amount of tuning to a 2.5 N/A and got good results, in the end it all depends how determined you are and how deep your pockets are.

[mk3phill]

cant add much more than tomcat has said or the others as for getting a T5 but again depending on what you want from it and where you want to go will limit yor options,... and as for reference the btcc 850's where 2.0 20v N/A 280bhp...(ish) i know its around that figre but throttle bodies seem to work wonders haha :D .... or just drop a 2.5L 20v into your bay. 170hp out the box but then a T5 would be just as easy providing 225hp

[Flatout Phil]

Best thing to do is sell it and buy a T5 - if power is what you are after?

My thoughts entirely - except I would get an R (OK Dave I agree, there is not a lot in it and T5s are soooooooooo cheap these days - mind you so are Rs). Unless you are really strapped for cash, the relative running costs are not massively, greater and you can't make a silk purse out of a sow's ear and all that :duck:

I should add that you MUST hitch a ride in a decent R/T5 to appreciate the massive power that is so cheaply available :dgrin:

Hoist the Jolly Roger!

[Wobbly Dave]

My thoughts entirely - except I would get an R (OK Dave I agree, there is not a lot in it and T5s are soooooooooo cheap these days - mind you so are Rs). Unless you are really strapped for cash, the relative running costs are not massively, greater and you can't make a silk purse out of a sow's ear and all that :duck:

I should add that you MUST hitch a ride in a decent R/T5 to appreciate the massive power that is so cheaply available :dgrin:

Hoist the Jolly Roger!
I was more thinking of the Engine - T5. Obviously you can get varieties with that engine.

[smithy]

Hi all,

I currently own a Volvo 850 2.0 20v 1994 Estate (143BHP standard)

I'm looking to inprove it's performance, current mods:

Cold Air Intake & Cone filter - approx 2-5 BHP
Improve Air Delivery- N/A Engines w/ VVIS Mod - Proven 9 BHP upto 4100 RPM

Poss fitting a chip - approx 10BHP

Total = Max 167 BHP

Do these figures sound realistic & any other modification tips.

Many Thanks.

Chris.

i had a 850 2.0 20v manual mk1.and i put a 2.5 20v motor in that with a jetex exhaust and later inlet manifold and k/n filter and then relearned the ecu like volvo do you dont need a chip the is a way of doing it.and my mate had a t5 and i could keep up with that

[850 2.5 10v]

A remap mate, my 2.5 10v can be remapped from 140 to 170 so I'm sure it could do somthing for you.

Tell me more - I didn't think this was possible on a n/a car...

I'd like a bit more ooomph.

Thanks!

[timbo_1975]

You are correct in saying that the P2 2.4 *20v* cars are available with 140 or 170bhp, and the software in the ECU is the only thing different between them.

However, the P1 10v 2.5's sadly dont suddenly turn into a 170bhp machine with a software update. I think 10-15bhp gain might not be too optimistic with remap, intake and exhaust mods though.

So, has anyone transplanted a T5 motor into their 10v Fenix5.2 engined x70 car yet, and married the t5 ecu / engine loom upto the rest of the car???

[Murphy]

However, the P1 10v 2.5's sadly dont suddenly turn into a 170bhp machine with a software update. I think 10-15bhp gain might not be too optimistic with remap, intake and exhaust mods though.

I agree....

[smithy]

You are correct in saying that the P2 2.4 *20v* cars are available with 140 or 170bhp, and the software in the ECU is the only thing different between them.

However, the P1 10v 2.5's sadly dont suddenly turn into a 170bhp machine with a software update. I think 10-15bhp gain might not be too optimistic with remap, intake and exhaust mods though.

So, has anyone transplanted a T5 motor into their 10v Fenix5.2 engined x70 car yet, and married the t5 ecu / engine loom upto the rest of the car???

that was only on the p2 engines as they all used 20v engines and just had a different map on the ecu .

[Flatout Phil]

Of course the original BTCC Volvos were 2 litre cars.

[BigV]

i had a 850 2.0 20v manual mk1.and i put a 2.5 20v motor in that with a jetex exhaust and later inlet manifold and k/n filter and then relearned the ecu like volvo do you dont need a chip the is a way of doing it.and my mate had a t5 and i could keep up with that

His T5 must have been shagged then....... what is the 2.5 20v, 170bhp as standard? T5 is 225bhp..... no way does k&n,exhaust + manifold add on 50+bhp.

[volvoturboman]

I haven't had a remap done to my car, I can only go by what Rica themselves have listed on the website.

http://www.rica-uk.com/viewcar.aspx?vehicle=159

There are no listings on the rica website for the 2.0 model however as they can do it to the N/A 2.4 like mine I'm sure they could do it to the 2.0.

[smithy]

my 2.0 20v had a 144 whp with a few mods exhaust,filter and later inlet manifold,and then i put a 2.5 20v engine with the same mods and relearned the ecu and that was on a 2.0 20v gearbox .i also said that i could keep up with his 850 t5 not overtake it.anyway it is not all about power its also how the car is setup ,the ratios in the 2.0 20v box are good for fast exceleration and with 2.5 20v engine it did surprise people in alot more powerful cars than mine.ps don off kalmore union uses the same box in his s70t5 for this reason

[volvoturboman]

Tell me more - I didn't think this was possible on a n/a car...

I'd like a bit more ooomph.

Thanks!

I was just thinking mate, your engine should be the same as mine. It is really expensive with Rica but if you were actually getting an extra 30brake it might be worth it. Then again if you take the price of your 850 and add the price of a remap from rica you'd get a very nice T5, possibly even an R.

http://www.rica-uk.com/viewcar.aspx?vehicle=159

[850 2.5 10v]

I think I will keep going as I am something like 7 years and 50k now in the 855...

However if I do change I have my heart set on the following cars:

P2 V70 T5 / D5 (1st choice)

BMW 530d Touring - (hide's behind sofa)

Merc E320 Cdi Estate - (hide's under sofa)

[mk3phill]

So, has anyone transplanted a T5 motor into their 10v Fenix5.2 engined x70 car yet, and married the t5 ecu / engine loom upto the rest of the car???

i done just that last june, and still going strong. its alot simpler than people make out to be as at start all i changed was the block/exhaust.. and the engine harness. this is seperate to the engine bay and runs along front of engine to the sensors and into the ecu box. from there you can split the base that the ecu connects to into two pieces soo again i jjust plged in the 2ft loom and the engine breathed into life! also that being a 850 fenix 5.2 and i swapped in a motronic 4.4.

being a bit of perfectionist.. and having extra toys on the donor car i eventually transplanted the rest of the bay loom also but this is not nessecary!

what must be taken into account thought is if the donor car has an immobiliser,and yours doesnot.. have to make sure to install the reciver ring that the key will transpond to. as on my 10v i found the wireing inplace so that was no problem.

[nobananas]

Could try an aftermarket ecu (although they are a bit pricey and 5 pots aren't well catered for) then get it set up properly on a rolling road by a tuner who knows what they are doing with cam timing etc.