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200 V70 Boost and v.e. 2-3 Shift issue?

How to go faster, stop quicker, and turn harder. Chips, exhaust, larger turbos, bigger/slotted/drilled rotors, high performance brake pads, manual boost controllers, performance shocks/struts/springs, airbox mods and more! Also discussion on HID and Xenon lights, aftermarket foglights and other exterior lighting.
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June
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Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by June » Thu Sep 27, 2018 7:13 am

Dealer price on a crate engine is $12,000 $6,000 for the trans so without receipt I find that hard to swallow on a 99. However you did not mention your car has a high pressure turbo 2.3 engine and 5 or 8 psi is way low for that engine on a WOT situation. Even for the light pressure turbo that sounded off to me. Before you go on a tangent I purchased two new Volvos one 95 one 98 equipped with the 2.3 HPT engine and from memory 12 to 15 psi was the factory high side. The 2.3 already has a bigger turbocharger from the factory. You need to fix the cause of the low boost pressure. From the factory the 2.3 has turbo lag on takeoff but a few seconds into a WOT you should feel it kick in like gangbusters! Both mine new were that way. Being as you did not say V70R you have a car ordered with the 2.3 because when 99 V70 without the R designation we out here assume LPT as that is the majority. Probably B5234T3 engine. Check your charge tubes for leaks. June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

Yarddogperformance
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Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by Yarddogperformance » Thu Sep 27, 2018 7:42 am

June wrote: ↑
Thu Sep 27, 2018 7:13 am
Dealer price on a crate engine is $12,000 $6,000 for the trans so without receipt I find that hard to swallow on a 99. However you did not mention your car has a high pressure turbo 2.3 engine and 5 or 8 psi is way low for that engine on a WOT situation. Even for the light pressure turbo that sounded off to me. Before you go on a tangent I purchased two new Volvos one 95 one 98 equipped with the 2.3 HPT engine and from memory 12 to 15 psi was the factory high side. The 2.3 already has a bigger turbocharger from the factory. You need to fix the cause of the low boost pressure. From the factory the 2.3 has turbo lag on takeoff but a few seconds into a WOT you should feel it kick in like gangbusters! Both mine new were that way. Being as you did not say V70R you have a car ordered with the 2.3 because when 99 V70 without the R designation we out here assume LPT as that is the majority. Probably B5234T3 engine. Check your charge tubes for leaks. June
Um its a 2000, becouse if it were a 99 i would have an aem standalone already.
I was given this car becouse no one in my county could fix it, it had a twisted rear shaft and a blown rear diff, tons of boost and vacume leaks, and yes a sparkly new engine
Its a xc se, with a type r engine and trans. I think the person who had the car done skimped on the ecm and harness, becouse the me7 wont work rivht above 8 psi.
The less forgiving thing someone had mentioned.

The car timed at 13.5, and for its age and shape i think that is fair i just wanted more, the v70 i drove in high school was quicker, or maybe i was just younger

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Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by Yarddogperformance » Thu Sep 27, 2018 7:47 am

And holey smokes guys i build engines for a living, ive looked up all the parts, this engine is cheap to build, as long as you dont want the 03 and new type r head.
18k worth of parts and that dude just gave it to me?
I thought he was on drugs

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June
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Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by June » Thu Sep 27, 2018 7:55 am

My 98 V70 also was a XC with the 2.3. The AWD seems to rob some acceleration over the FWD model. My 850 FWD 2.3 definitely was quicker than the V70 AWD and I special ordered the 850 T5R and bought the V70 XC both brand new for what its worth. Was your high school car a FWD or also a XC AWD? That may be the difference you notice. June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

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Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by Yarddogperformance » Thu Sep 27, 2018 8:04 am

I worke in a body shop, this burgandy v70 wagon had spun into a light pole during a blizzard.
It was awd and completly un badged, but it was an 05, and a five spd. Thats all my boss would let me see becous we only changed a quarter panal and roof skin

Yarddogperformance
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Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by Yarddogperformance » Thu Sep 27, 2018 8:09 am

Honestly i had 11.2 sec datsun 280 with a v8, and it was really quick but really slow, so when this car showed up i held an auction and sold my datsun for peanuts.

Im probly just dissapointed becouse im sure the volvo would have ran it down after the 1/8mile mark.
But i was wrong, about alot of cars, my datsun really was the fastest in my town 9 months ago.
Now im just like everyone else again and it sucks, they are going to start expecting big things from this car and that stupid me7 and its flybywire system are going to ruin it for me

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June
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Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by June » Thu Sep 27, 2018 8:31 am

Yarddogperformance wrote: ↑
Thu Sep 27, 2018 8:04 am
I worke in a body shop, this burgandy v70 wagon had spun into a light pole during a blizzard.
It was awd and completly un badged, but it was an 05, and a five spd. Thats all my boss would let me see becous we only changed a quarter panal and roof skin
05 V70 is a P2 platform car like my 04 S80, completely different from a P80 platform 00 V70. I believe even a different AWD system though I am not 100% sure when Volvo changed the AWD. Definitely the 05 would drive better and the 5 speed makes a huge difference. June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

User avatar
June
Posts: 1820
Joined: Wed May 04, 2016 11:18 am
Year and Model: 2004 S80 T6
Location: Jacksonville, Florida
Has thanked: 330 times
Been thanked: 166 times
United States of America
June

Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by June » Thu Sep 27, 2018 8:39 am

For giggles way back when I was in high school a bone stock 1959 Buick Invicta with turbine drive transmission was the fastest car in my school. It ate 5.0 Mustangs, Monte carlo ss, and even a Vette in my presence. It was like 25 years old at that time and his mother's car :lol: . So you really never know by looking or brand. June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

Yarddogperformance
Posts: 48
Joined: Sun Mar 04, 2018 10:30 pm
Year and Model: 2000 v70 cc se
Location: Colorado
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Yarddogperformance

Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by Yarddogperformance » Thu Sep 27, 2018 8:49 am

I ran my school with a 2.8 chevy barretta burlinetta, if i had this volvo then id have been a laughing stalk

Powerglides are cool, very effective in accelerating and traction

Yarddogperformance
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Re: 200 V70 Boost and v.e. 2-3 Shift issue?

Post by Yarddogperformance » Sun Nov 04, 2018 5:00 am

June wrote: ↑
Wed Sep 26, 2018 12:05 pm
Yarddogperformance wrote: ↑
Wed Sep 26, 2018 9:01 am
Ah very good note, no i havent been able to afford a tune. However everyone forgets that engines always make power, the engine is only under boost during acceleration.
Therefore since its 8 psi at 2500 rpm wot, and only 6psi maybe 5, at 4500rpm wot.
The issue isnt boost pressure it is valume and flow, my question was if i increase the flow, in and out is the factory tune going to have the same problem as it did on 10psi witch had 0 boost drop at high rpm, but a laggy 2-3 shift and loss of power

Like i said im looking for a mechanic not a keyboard warrior
I asked my husband who was a dealer mechanic until he found welding pays better. Mike said OBD 2 can only handle a maximum of 30% increase of air 20% safely. He said at 30% air increase your stock injectors are wide open and not where you want to be. Also by increasing boost psi you are increasing the compression ratio. He said likely your shift problem is likely a result of the knock sensor hearing knock from either a lean condition or knock from compression causing the computer to attempt to stop the knock. End result will be power loss. He said you can expect to either blow the engine or transmission or both in their stock 20yo condition.

He said if you want to increase flow past 20% larger injectors, remapping the computer, and possibly a higher flow mass airflow sensor depending on how crazy you want to go. Also he said the added airflow needs to be able to exit the engine. rebuilding the engine and transmission with performance in mind would be required and beefed up axles to handle the torque would also be needed. He says your best bet for more power out of a old car is a tune without all the extra boost.

Volvo actually makes crazy fast cars. You just did not buy one. A few years ago when the S60 Pollstar was hitting 0 to 60 in under 3 seconds I really thought about ordering one as a occasional use car, but it would have cost me my marriage. In hindsight I wish I had bought one... :lol: :mrgreen: :lol: :mrgreen: June

well i thought id update on my v70.
it now runs an ecm controled 8-13 psi, depending on fuel quality.
upon looking at factory vacume hose routing i noticed a fatal flaw made by the volvo engineres, this flaw causes the pcm to read a false boost value, i.e. if your gate is set to 30 psi the pcm only allows 5, so you set the gate at 5, now the pcm lets you have 8. this is becouse the ecm is reading boost pressure pre throttle, so when the plate is closed it is still reading what it belives to be wide open throttle, so when at high rpm and the turbo is spooled the flow rate through the throttle body decreases and the pressure in the charge tube increases thus causeing the gat to open at 5 psi even though the computor is reading and tuning for 8-13 psi at that time.
:lol: stupid sweeds saw all you rich guys coming :lol:

so, correcting this issue, you see if you just turn the waste gate preload up the ecm reads high boost sooner, and to get the pressures you wish to your actuially running 200% or more of your desired pressures.

now everyone has thir own feeling about turbine chatter and the nessecery use of a turbo bypass valve, i do not see a need for this as the engine generally consumes excess air except on deceleration, and idle.
with that said i plumbed my bypass valve strait to the charge feed, using boost pressure to hold it shut, however you can run it still and this mod should still work.

after moving the line to the charge housing i had no boost referance for the wastegate, and an open port in my intake after the throttle body, so i used this port for my boost referance.

ok, so now i get a vroooooooommmmmm, chu. chu. chu. :mrgreen:

i took it out for a drive and to my dismay it hit 13 psi at 1500 rpm, banged hard into second gear, and third gear gave me a tummy ache when it hit, the car was instanly a true turbo car, no longer a false statement.

so just to check my settings i removed the boost control solinoid and drove again, 4.5psi 1000 rpm, no more no less, i checked the fuel trims and o2 readings , re isntalled the boost solinoid and checked again, 20% increase in fuel trim, exact o2 readings and no overheat, or knocking

im getting 13 psi on 85, 15 psi on 93 but my milage is hindered severely with high octain due to the less irratic burn causing it to need more fuel for the same power.

so 13 is safe, the ecm is already allowing for that, however factory settings are reading from the wrong place, for added performance on a stock tune, and double the boost, use a post throttle vacume port for your wastegate. that is all

:twisted: now go ashame some bmw's, horrify the hondas and musk up the mustangs, that is all :P

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