The 850 turbo im purchasing has some worn seals. Im wondering if I should swop it out for a 19T.

Or should I rather build a 15G/19T hybrid. Keep the compressor wheel small and drop on the 19T exhaust wheel.

Ill be running stock boost with Intake and exhaust.

Would the car be any more laggy?

 

How many miles are on the 850? Usually people don't use a 19T unless they're building they're internals. If you use a 19T you should really consider a performance exhaust. You'll need new injectors (blues), and you'll need a REALLY good tune if your running a 19T on a stock motor. It's fairly easy to bend rods with a 19t on stock internals if your not careful.

 

Read This

 

ooh, roughtly 280 000km (170k miles?)

Is that even at stock boost? Surely the 19t flows more, but 10psi is still 10psi, wont the added flow rate be compensated by the ecu/airflow meter?

 

I see the problem comes with the speed that it spools.

Would a 15G Comp / 19T exhaust wheel compared to the 19T straight be any "easier" on the rods?

At stock boost (9.5psi) how much more power is the 19T estimated over the 15G? I believe that at heigher boost the 19T will obviously start jumping light years ahead of the 15G.

Im looking for 270-300hp on stock internals. Is that possible?

 

Yeah, stock internals are good for about 350, that's when you really want to consider rebuilding. If your only aiming for 270-300, you can do that with the 15G and a tune. Or upgrade to a 16T which can handle more boost than the 15G. I think for that amount of HP a 19T would be over kill. Plus if you swapped wheels you would probably need to bore out the 15G. I'm using a 16T on my wagon that I'm rebuilding and I'm aiming for about 280-300 hp.

 

I used a 19t on my 1400 8v Fiat uno turbo and made 290hp @ 30psi.

They work well. I just thought that, the wagon im getting might need a turbo/pcv and as my previous tuner is a Mitsubish turbo specialist... getting a 19t would be easy peasy.

On the otherhand I have a baby WRX TD04L here at home, but im guessing the housing would be too small... for a 16T or 18T rebuild.

 

On a completely stock car, all you need to do is get an IPD tune, or really any tune for that matter, and your instantly at 270-280 hp.

 

How much boost can the Airflow Meter /Ecu compensate for, should I use a MBC?

Ill have to look into chip tuning companies.

 

Fuel cut on stock ecu is 15 PSI. But on the 15G's, once you hit 15PSI your out of efficiency. If you get a mbc, you'll have to get a boost gauge as well. I would not set it any more than 13/13.5 PSI to allow for boost spikes.

 

what would a custom tune set the boost at?

 

On your 15G? Probably at 13-14 PSI. But a custom tune also eliminates fuel cut, and adjusts other aspects to allow the engine to run efficiently at higher boost levels. Where as MBC only increases boost, which doesn't mean your ecu is responding the the higher boost, especially in the fuel injectors.

 

I thought so.

The 850 runs fine on stock boost. Im pretty sure with a custom tune, it will really haul...

How much power before I can start picking on the e46 M3's 300?

 

~290 to the wheels.

My 745T can have some fun with newer cars. WRX can't pull from my car when I try to give them something....

Can you get me a K24 turbo for my car... for free? please!

anyways, my friend has a 16T on his modded 850. that car was fun to bee in. it was a stick with an LSD....

 

Persoanlly for a daily driver a 19T is a bit excessive... In the reality of turbos it isn't really that big of a turbo... Unlike some of the Garretts out there. However people have done damage to their Volvo's using them for the obvious reasons stated in this thread.

For 250-300 Hp your looking at a FULL STAGE ZERO, 3" MANDREL BENT DOWNPIPE, 3" MANDREL BENT CATBACK SYSTEM w/ FREE FLOWING STRAIGHT THROUGH DESIGN MUFFLER,16T TURBO & AN ECU UPGRADE.

These mods should net you the power your looking for. Another good mod to think about is doing a custom FMIC SYSTEM. This will flow much better then your stocker.

As far as ECU upgrades go IPD USA, RICA & BSR PPC are the three best tuners on the market for Volvo. Inmotion, SpeedTuning USA, Upsolute are three lower teir tuners that while many have theirs tunes they are not the best. While they cost significantly less the quality of the tune and the research and development that goes into them isn't near what IPD USA, RICA and BSR PPC do. You could also try a standalone system if your feeling adventuresome. There are some on the market that work with Volvo's, I forget the names off hand, but will look some up for you.

Here are some good turbo visuals below. Please click the link for more flow charts.

13g





15g




16T


*As you can see the 13g and 15g are similar in size, but yet one was used on the LPT model Volvos (13g) and the other on the HPT model Volvos (15g).

19T Vs 16T compresor wheels (Turbine fans, whatever you wanna call them)


Compressor Maps ( http://images.google.com/imgres?imgu...6safe%3Dactive )
13G


15g


16T


18T


19T

 

I know what you mean.

a 3 inch system, would be awesome, but I like my cars quiet. I know with a 3 inch system it will be way too loud. It must almost sound stock.

I front mount will be on the cards, I need to still have a look at the original design of the stocker, but im sure ill have something here.

Will a 16T be good for a stock car? will there be a noticable untuned(chipped) gain to the 15g or not really?

 

It will be noticeable. Slightly quicker spool ups and the 16Ts can handle more boost. Unless your going to chip your car or do other performance mods, ie intake, exhaust, etc etc, then there's really no point in doing a 16T by itself.

 

I agree completely with what you are saying.

I just thought, that if I needed to do the seals, I might aswell changed the exhaust wheel. But If it is not recommended on a stock car, I will leave that alone.

I spoke to our local volvo tuner "Revolve" and the owner advised me to take a motor of that mileage for a leakage test.

What do you think?

 

How many miles are on it? 170k? I guess you could do one if you feel the need to. I mean a compression/leak down test never hurts, but it's not like your the only one with an 850 that has high mileage. I would say the majority of people's 850s are running about 150k. Mine has 214, but I know it has poor compression that's why I'm leaving it stock and building my wagon.

 

Ill go check it out tomorrow again just to see if it is infact the turbo smoking or the pcv.

Does the pcv have to be replaced? Can it be cleaned or even replaced with something more custom that wont give any trouble?