What is the difference between the 850 turbo and the 850 t-5r sedan. They always have these selections when looking for parts.

the difference is the 850 not having a turbo and the 850 T-5 having a turbo which renders different parts for certain items

It says 850 turbo and 850 t-5r turbo

over looked the turbo in the first post. But basically they are 2 different setups for the engine and there can be small differences that change the parts between the models.

I am relatively new to volvos so i dont know what parts are different, but if there is a difference in 18 HP there are definately different parts which is why they ask you what model you have so they can give you the right part

I believe it says on the trunk 850 turbo or 850t-5r if I am not mistaking?

The difference lies in performance.If you're looking for power, i'd go for the T5R.They use a different ECU as compared to the T5s.

different injectors, ecu, tranny ecu, bigger intercooler, bigger turbo. from what i have read, the T5 became the turbo, and T5R became the R. the difference in the 18 horse is there is an overboost programmed into the ecu, like that new porsche, for like 3-4 seconds it will overboost giving you the extra 18 horsepower. other than that, the engine is the same. you can't just change the injectors and turbo and get the power from the T5R, you need both ecu's, otherwise you will just get a CEL telling you that you are running rich and burning extra fuel for nothing. if poss, get the T5R, otherwise, get the turbo and get the upgrades. either way, it is costlier.

I think this was the type of information dlaxdal was after and if it wasn't, it should be. Don't worry about what the badges represent on the boot - anyone can buy badges/emblems to tart up their vehicle and make it look better/faster than it really is.

Once again, TheGreekMason was right on the ball!! :thumbsup:

:clap:

Well, I dont think I would question him on those things, but then again I wouldnt want to upset him as he might just take that ball and go home,and then where would we be...lol
:P

yeah, i am real sensitive about these things. uhoh, here comes a hissy fit. la,la,la,la,la,la, okay, enough with the espresso, decaf from now on. :grin:

What? The only difference is body styling, interior styling and a different tune on the ECU. The engine is exacly the same.

The turbo model has 9.7 psi / 222hp

The R model has 12psi / 240hp

yeah, but if you don't change the ecu and all the corresponding items, it will cause a rich running problem and the dreaded CEL of death will occur. if it continues and you don't take care of it, it will start to give you less power to protect the engine from pre-detonation from all the fuel flowing through it. a turbo change and new injectors won't do it. if you check out all the sites that upgrade the ecu's, they tell you the power upgrade will only work with new injectors, gaskets, turbo, exhaust, etc. etc. it's not that easy. otherwise, everybody would do it and they wouldn't need to make all the different models.

No offence bro but seriously? You can put a speedtuning ecu in an 850 and push 17psi on a mostly stock Volvo 850. 285hp Better performance than a T5R.

If you want to get more than 285-300 bhp out of a Volvo 850 T5 or T5R than you need to start changing the things you mentioned. But the OP asked the difference between a T5 and T5R. Which I stated above.

The only recommendation of the the 5 major chip tuners of the Volvo 850 Turbo and T5R models is a down pipe, exaust and an intake. Check their websites, no where will the mention what you say unless its a drastic stage 3 kit or something.

Speedtuning - www.speedtuningusa.com
RICA - www.vivaperformace.com
BSR - www.bsruk.co.uk/
IPD-TME - www.ipdusa.com
Upsolute www.upsolute.com

Running rich rarley causes detonation. Running lean does. A good tune will not detonate.

You can change the ECU in a 1995 T5 and make into an R. The last numbers of the T5 ECU is 072 and T5R are 628 IIRC. If you put a 628 into a 072 then you have R without the styling cues.

To quote Wikipedia:

In 1995 a special limited edition race-bred model was released. This "850 T-5R" model was limited in exterior paint color choices: only available in black (2500 worldwide including sedan and station wagon), cream yellow (2500 worldwide including sedan and station wagon) and green (500 worldwide including sedan and station wagon). Only 185 of the cream yellow models were made for the U.S. market. The vehicle was based upon the 850 Turbo with the B5234T5 engine with a special ECU known as the Bosch #628 ECU, that added 3 psi (21 kPa) to turbocharger boost pressure, giving the engine an additional 18 horsepower (13 kW).

all i know is that on the R that i have now, with an rica tune, i was advised that besides the ecu upgrade, the injectors would likely need to be upgraded from the blue to the green and the other R that i had with a tme tune, green were needed. and those were custom. besides the downtube, exhaust etc. and i meant to write post detonation, according to the volvo mechanic who did all the mods to the other R i had. and you just wrote mostly stock 850. so you are telling me you are pushing 17 psi on a stock turbo and stock block. wait, actually, you are correct, the question was the diffence between a T5 and a T5R. i don't actually remember a time when the two R's were stock. it's been so long. i am sorry. i spend all my time giving advice on modding that it didn't actually register to me that i was talking modded and not stock. you are correct. my bad everybody.

Boost_Junky,

Also, no offence but you were right in pointing out that the original poster wanted to know what the difference between the T5 and the T5R.

BUT I would think that the OP (borrowing your term here) would want to know the difference between the 2 at factory rollout some 13 years ago. Not what you could do to boost the performance.

And i am not sure about the Volvos sold in US, but the ones sold in Malaysia do have the said differences as i mentioned (and to a greater extent, what Greek mentioned, as well). When you said the engine is the same, i guess you're prolly referring to the engine block only, because the injectors are definitely different. T5s are orange/yellow, while the T5Rs and Rs are either white or blue. THe turbos are also different, the T5s typically carry the 15G blades, while the T5Rs and Rs use the 16T ones.

And you are right on the ECU #628. As a matter of fact, if you have an OBDII T5, try fitting an OBDI ECU #074 into it, and put aside your own #852 or #072 and you can already feel a difference. THe stock boost on the 074 is 1 bar (or near there), while the #072 is 0.6bar.

The other difference is like you said, the trims and all.

Here is a chart to help.

http://www.swededemon.com/turbo/turbolist.html

The 1995 had 15g whether R or T5.

The 1996 had the 16T whether R or T5.

See the trend?

The injectors didn't start getting changed until later. Why can you find white injectors in a 1998 S70 T5? I am not trying to argue with you guys. I just don't believe in giving out wrong information.

AND

There is a lot of misinforamtion going here. I am here to help, and there is a lot I can offer. I'm sure you are all great guys, but am I supposed to sit here and watch this stuff get passed around like this? I can check VADIS at any time to confirm or deny any of your statements. I can say that different countys had some different parts, however the statements you made are not entirely acurate.

Here are more charts explaining what I'm saying about ECU's.

http://www.ipdusa.com/Volvo-850/Performanc.../p-72-143-2183/

Here is a chart explaining injector sizes:

http://apps.bosch.com.au/products/saa/efi_...orservparts.pdf

Can you provide evidence supporting your caims? I could be wrong. I am human. However my expereince and data support my comments. See the application list for injectors. It only changes for turbo vs. non turbo cars. Only the later models like the S60R had different injectors than their T5 cousins.

The only reason I mentioned the performance items was because it was in refrence to the comments you and greek mason made.

I have mad respect for you guys becasue you are passionate about Volvo's. Like I said I am here to help. :thumbsup:

hey boost, all of my info about volvos comes from either whatever i have messed up, which is plenty. with a capital P. or from the mechanic who does whatever work that i am either not qualfied to do or can't. my whole mechanical experience is with american cars and harleys. with my R's, they were a purchase out of a whim. i read whatever i could about them, screwed up the first one to the point that it was completely undrivable, and had to get certified help. i even heard of a mechanic who was coming from sweden to the US and paid for him to look at my R. the one that i drive now is the normal of the two. the other one was done by my current mechanic to see what i could get out of the car. and it was A LOT. i am learning everyday from reading posts from other owners. like you posted, i am also human, well not according to my brothers, but you know. anyway, if your info is correct, then i stand corrected. i also am not trying to argue of start anything. when i am wrong, i admit it. so, if possible, whatever info that i have given out that is wrong, please point out to me. i wouldn't want to misinform anyone, least of all, a new volvo owner who is wanting to learn the in's and out's of volvo ownership. i stand corrected.

You sound like a great guy. I hope to be a resource here. If there is anything I can do, let me know.