New 740 16v Owner

[Entuscan]

Hey Guys

I was wondering if some of you could help a new 740 owner out.
I'm quite familiar with the tuning of my V70R AWD but i can't seem to find any good info on tuning my newly accuired 740 16V Turbo with B204 engine

http://www.entuscan.com/740/740_02s.jpg (http://www.entuscan.com/740/740_02.jpg)

Some pictures:

http://www.entuscan.com/740/740_06s.jpg (http://www.entuscan.com/740/740_06.jpg)

http://www.entuscan.com/740/740_07s.jpg (http://www.entuscan.com/740/740_07.jpg)

http://www.entuscan.com/740/740_09s.jpg (http://www.entuscan.com/740/740_09.jpg)

http://www.entuscan.com/740/740_08s.jpg (http://www.entuscan.com/740/740_02.jpg)

http://www.entuscan.com/740/740_03s.jpg (http://www.entuscan.com/740/740_03.jpg)

The car as just shy of 160.000km and is in PERFECT condition: outside as inside.
It was an impulse buy in addition to my other volvo but since they are pretty rare cars and this one is in prestene condition ... :) not much to think about. And offcourse the Volvo RWD driving pleasure is not to be forgotten

Nowthis one of the fastest production 740's ... but things can never go fast enough :-P
What are the tuning options for the B204GT and also important, how much can the standard M46 hold?

From what I read here on TB the air intake is pretty restrictive and placing a Cone filter with heatshield is an easy way to upgrade that.
Is there a possibility to chiptune this engine to make more HP? as far as i can tell the B204 has the so called Turbo++ kit installed and this increases boost by a special valve etc. Is there any headroom left for ECU optimizing ??
And are there any aftermarket downpipe and exhaust options available for this car with IRS ?
Everything i can find is for "normal" 740's.

And one other important thing I can't seem to find much about is upgrading the stopping power. It isn't bad standard ... but i feel it could be better.

So a lot of questions from a new member.
Thanks in advance for any info

Entuscan

[Vee_Que]

For a minute, I thought it was a b234ET, but why would a 740 have IRS? it was only on the 760 that happened?

Very very neat.

[740ATL]

yeah, it's well known that those cars are complete junk. But I'll take it off your hands for ya. I know you must be disappointed.

Simply arrange for shipping to Atlanta, GA..... :)












that's a joke BTW..... that's a seriously nice ride you have there... I am incredibly jealous. :)

I could use some more engine pictures if you don't mind...

[badvlvo]

I want one to bring back from Europe this fall. Yours will do just fine.

Nice ride, hope it works out well for you.

[blkaplan]

man that looks good in white

[frpe82]

Is there a possibility to chiptune this engine to make more HP? as far as i can tell the B204 has the so called Turbo++ kit installed and this increases boost by a special valve etc. Is there any headroom left for ECU optimizing ??
You can gain a lot of power and driveability with a chip for your engine. It really has a lot of potential as it is in stock form. It is the engine that everyone here would have like to be installed in their car when it came from the factory. I beleive that you can gain almost 30% on the HP and torque curves safely with a chip.

I sell tuning chips. Your engine may not be listed (because it is very uncommon) but if I can remember right, then I think we have chips for that one too.
Look at the link in my signature below and send me a PM...

[Bambam]

ask bruno ... he knows the b204gt because he is the only one here that has one

http://forums.turbobricks.com/member.php?u=3348

[740Weapon]

3" exhaust, upgraded intercooler, bigger fuel injectors, more boost.

works every time.

[SwedishFish]

Very cool car! Is it a 90 or a 91? Are you located in Deutschland? I'm curious.
As stated before, I among everyone here would love to have one of those motors. But I love that front end too!

[romantt8]

That is incredable. I need to get my greasy hands over to europe ASAP.

[suterman]

That really is a GREAT find! It is a rare engine, The thing a lot of tbrickers aspire to is a 16v turbo engine, you have found one special motor! Look after it!:)

[SteveMD]

This thread is useless without pictures of the engine. Lots of them, por favor.

[Entuscan]

@frpe82:
30% would be a lot to gain from adding a chip ... 260Nhp and near 390nm
Don't think that would be realistic from just a chip.
Would be great if it was :twisted:

@SwedishFish:
When I pull the vin through Vadis YV1744282L2451877 It's a 1990, Although the first use of the car is 03/1991. I'm guessing it's a late production '90 but a MY'91
The Official Volvo type of the car is a 744-28L

@stevemd:
http://www.entuscan.com/740/740_7.jpg
This is a crappy scan from the folder the previous owner made for me
I'll take some pictures tomorrow (it's dark outside now)

[MikeHardy]

@frpe82:
30% would be a lot to gain from adding a chip ... 260Nhp and near 390nm
Don't think that would be realistic from just a chip.
Would be great if it was :twisted:


don't forget they have a nice low 8.2:1 compression and only run just over 6psi stock

[blkaplan]

don't forget they have a nice low 8.2:1 compression and only run just over 6psi stock

damn that is a recipe for easy hp,,,, just add b00st1111

[740ATL]

damn that is a recipe for easy hp,,,, just add b00st1111

+1

knowing what I know now... I wish I just started with a 16v NA vehicle and went from there. Can anyone out there help me with erasing the past year and a half so I can get a do-over?

I'm just imagining the potential of that car... bigger IC, injectors, exhaust... oi.

[Entuscan]

don't forget they have a nice low 8.2:1 compression and only run just over 6psi stock

Yes it has that CR, but boost sure is higher then 6psi, the needle goes all the way to the right
and as i said afaik the B204 comes with the so called Turbo+ kit as factory wich main function is to increase boost. (the kit supposedly adds 20HP, don't know how much boost increase that would be)
To bad there isn't a scale on the standard boost gauge ... then I would know for sure

Edit:
Did some quick research on the turbo+ kit:
at 3000-3500rpm Normal boost is around 52-55kpa (7.5-7.9psi) and from 3500-5000rpm it gets upped to 70-90kpa (10.1-13psi). And there is a mechanical pressure switch that kills the fuel supply at 120kpa (17.5psi)

So if this this correct the engine can never make more then 17.5psi of boost (with chip or anything else) or the mechanical killswitch kicks in.

[BB-Q]

Very nice, tidy car. Good find.

If you ever come across a B204 cylinder head PM and let me know how much please. I'm in the UK so shipping wouldn't be so bad. :)

[MikeHardy]

very strange that as supposedly the B204 turbos' LH2.4 has in built boost control so not sure why it would need a turbo+ system.

which is why they have the 6pin TPS and EGT sensor

Throttle position switch
Sends signals to the fuel system and distributor ignition (DI system) control module that the throttle is closed (CTP) or wide open (WOT).
The B204 FT/GT engine has a throttle position (TP) switch which also has a potentiometer that provides the turbocharger (TC) control system with information on the throttle angle. Turbocharger (TC) models do not use the full load switch.

Exhaust gas temperature sensor (B 204 FT/GT)

The exhaust gas temperature sensor (EGTC) consists of a thermal element in the exhaust manifold before the turbocharger (TC) unit. This senses the exhaust temperature and sends a signal to the fuel injection system control module, which gradually increases the injection period when the exhaust temperature reach a critical level (approximately 950 °C).
This contributes to a lower combustion temperature which in turn reduces the exhaust gas temperature, after which the increased fuel supply stops when the exhaust gas temperature has reached a normal level.

[Entuscan]

very strange that as supposedly the B204 turbos' LH2.4 has in built boost control so not sure why it would need a turbo+ system.


I hope this is the case, would make for easier tuning indeed
The b204 aren't well documented :(
Where should the needle be at @full boost on a stock boostgauge at stock boostlevels?

I'll need to add a real decent boostgauge when I start tuning the car because like this it's just gueswork

[badvlvo]

I'll trade you a kidney- like new, low hours, just serviced - Or possibly a child? for your car.

[dl242gt]

That's a very well taken care of car you just bought.
Enjoy your new boosted brick!

[frpe82]

@frpe82:
30% would be a lot to gain from adding a chip ... 260Nhp and near 390nm
Don't think that would be realistic from just a chip.
Would be great if it was :twisted:
I promise you it is true!

Ask any other member of Turbobricks that use my chip what happens to the car...

Also, take a look at the first picture in this thread: http://forums.turbobricks.com/showthread.php?t=63961

If that is what is acheivable with a B200FT, then imagine how much you can do with the B204FT/GT...! (A lot more flow there you know ;-) )

[jfs356]

That's a beautiful 740....and a great engine as well......would love to have that in my car...

[MikeSr.]

Change that timing belt soon- it is an interference engine and will destroy itself if the timing belt breaks- read carefully this info:http://www.brickboard.com/FAQ/700-900/B234Ftimingbelts.htm
Change the oil pump gear and bolt and follow instructions religiously. This may be one of those things best left to a mechanic. I did mine and removed the balance shaft belt completely and noticed no difference, but i removed a risk of problems, because if the balance shaft belt breaks, it takes out the timing belt and the valves, pistons,head, etc.
Good luck

[Entuscan]

The Engine Pics:
(clickable as all my other pics above)

http://www.entuscan.com/740/740_10s.jpg (http://www.entuscan.com/740/740_10.jpg)

http://www.entuscan.com/740/740_12s.jpg (http://www.entuscan.com/740/740_12.jpg)

http://www.entuscan.com/740/740_14s.jpg (http://www.entuscan.com/740/740_14.jpg)

@MikeSr
As you can see, timingbelt was swapped less then 1000km ago :)
Like I said before it's in EXCELLENT condition
Owner even swapped all rubber vacuum and waterhoses between me paying an advance and picking up the car. On his costs (aprox 450 euro parts and labor)
The man hated to let it go, but his wife wanted an other car. (they got a toyota avensis diesel now)

@frpe82
As soon as I start tuning the car I'll be in touch.
I'm going to drive it around for a month or so as is. Do some Stage 0 checks (new oil, new denso iridium plugs etc) just to make sure she keeps running pretty

[SteveMD]

Beautiful pix, thanks.

[MikeHardy]

if it was turbo+ there'd be lots of hoses and wires around the air box running up past the coolant bottle and strut tower which aren't there.

looks damn fine though. wish i had one. maybe next year i can import one to the UK

[impulse922]

That's possibly the best engine volvo has made. EVER

And i think ^^ he's right, because my car has turbo + and i dont see any thing that has/had on that engine that resembles turbo +

[frpe82]

That's possibly the best engine volvo has made. EVER

And i think ^^ he's right, because my car has turbo + and i dont see any thing that has/had on that engine that resembles turbo +
Yah. There are no Turbo+ in that car.

What it do have is a factory boost controller. All B204FT/GT came with them.

I have also been in contact with my tuner today and I have some nice things to tell all of you:

1. The chip for the B204 turbo engines will give +70HP, dyno proven.
2. You don´t have to screw around with the boost or anything because the chip will regulate the boost through the built-in boost controller.
3. The ECU´s in these cars also have MAP-sensor capabilities and EGT for added reliability and performance.
4. This info is true for all 700 and 900 series cars with the B204 turbo engines.

As an extra bonus I can also tell you guys that this car use LH2.4 just like the rest of the 90+ RWD turbo Volvos.

And some ECU´s found in our most common cars (with B200FT/B230FT engines) also have MAP-sensor capabilities and boost control built-in. It is simply not enabled in the chip. (A lot of fun can be had with some mods)

[impulse922]

1. The chip for the B204 turbo engines will give +70HP, dyno proven.

wow, so if he gets the chip and 3 inch exhaust thats like ~270bhp on a teeny 13c, now that is where its at.

[Entuscan]

Watch me start saving NOW :twisted:

But can the m46 handle all this power ???

[NoSi1212ah]

depends on how you drive, but a new tranny would be a good upgrade if you plan on modding even further... i myself am not too familar with the m46 first hand but ev erything ive read is that they are junkkkk

[impulse922]

m90 ftw? and i thought m46's were LH 2.2 not 2.4

[MikeHardy]

m90 ftw? and i thought m46's were LH 2.2 not 2.4

both, used till end of 93

[frpe82]

Watch me start saving NOW :twisted:
Just tell me when, and I will gladly add you to the list in the group-buy. I think that I will even pay the shipping fee for you just because you are the first one outside Sweden to try it...

Ohhhh. I envy you and your engine!

[Sharpel764ti]

well you live in europe so an M90 should not be that hard to locate,

guessing Germany by the tags, but could be wrong

edited for stupidity

[MikeSr.]

It's a great car- the best Volvo motor ever. Congrats, man.

[BB-Q]

You'll need an M90. When I put Fredrik's chips into my B200FT/M46 @15psi it took about 100miles before 3rd gear on my previously ok M46 started to get noisy! :omg:

The increased torque from the chips is amazing. :twisted:

[rui]

hi

i´m from Portugal and recently received the turbo 740 16v from my uncle (109000km, amazing condition..) .) I have some information regarding the car if you want or need.

If you are curious here´s some pictures: http://www.cardomain.com/ride/532003/

I also have some home videos (the engine sound is something else..) :) couldn´t resist

Have you bought it?

If so, congratulations!! love this car. It´s brutal.. 0-100km/h: 7,9 (factory) 0-1000meters: 28.8 seconds 213km/h (tested by l´action automobile). I have some magazines with tests..

I´m Antonio from Portugal (by the way the car was sold in Portugal, France, Italy (probably) and I don´t know if any more countries)

Be free to reply if you want;-)

[rui]

By the way, if you ever tune it tell my please off what you did and the diference! If have my fathers Saab 9-3 Tid tuned (powerbox) and my mothers mondeo TD engine tuned (more fuel injection). it´s a same if the volvo stands alone.. :) 70bhp more?! thats something, but i found a Serbian chip tuner that gave the same value to the B204gt!! http://www.mschiptuning.com/english/performanse/volvo.html