View Full Version : who knows 30v audi motors (AKA i have no clue)
b18a1+gsr-trans
12-05-2007, 08:51 PM
i can rev this thing to 8500+rpm i would guess 9500 or so.
first time it happend i thought i blew up the motor, but everything is fine not even a check engine light, this v6 2.8L redlines at 6300rpm tach ends at 8000, and when crusing and floored to pass will lock at 8000rpm and pull from there, if the pedal is held just above the floor it will select a regular passing gear
mark motors tells me audi doesnt put a rev limiter on these motors and the valve train can handle it up there (10.3:1 comp interferance) just doesnt make power and stresses the motor
is this normal? also for the tranny to lock into gear at such a high rpm?
dealership says normal, i say bullshit only because it doesnt make sense
any input?
blackfoot
12-06-2007, 05:06 AM
i all depends on the computer. assuming you have a newish audi, everything is computer controlled..
the ecu could be advanced enough to know i will be safe to hold that gear
or you have a band that gets stuck on and wont release to acheive the next gear(is this was the case, you would be always stuck in that gear. and it wouldnt shift at all)
b18a1+gsr-trans
12-06-2007, 09:35 AM
interesting, ive heard that before about everything being computer controlled to a ridiculous point, but i could never be sure to what extent without that crazy 2000 page dvd-rom manual
it changes gear properly as far as i can tell, if floored you have to let the pedal off the floor a little for a sec, then it will shift, but if you press the pedal into the carpet it will kick you back down to the gear you just shifted out of. i was also told the tranny has its own tcu and set of codes if there is a problem.
its a 1998 A4 2.8Q 30v with tiptronic
its the whole high rev issue that has me wondering, i wonder what the actual limit of the valve train is? and if the ecu will actually prevent damage to the motor.
its hard to tell what rpm im at with the heater fan on inside, you dont hear or feel the motor at all, gotta look at the tach, but when i do a shoulder check to pass and floor it i look back and my needle is pinned on the clock 8500+rpm and pulling good (tach needle hits stopper and i keep accelerating) then i break out in a cold sweat
Something doesn't sounds right here at all. Maybe Audi doesn't have a rev limiter because this engine was never meant to be used with a full manual trans. This sounds like a trans problem. And all the computers in the world can not protect against some hardware failures. Be careful, you could be one or two events away from blowing this thing up.
b18a1+gsr-trans
12-09-2007, 10:28 AM
interesting thought, but im running into so many unknowns and lack of info no matter who i talk to so i dont even know who to ask about what you just brought up
i think im gonna drive like a granny till i order all my audi stuff (dvd service manual, vag-com obd2 usb diag. cable, and assorted special 3/8 drive socket/bits
and in this new world of audi, the dealer says the tranny fluid is sealed from the factory and should never be replaced, yet i have read stories about people noticing a big difference in how the tranny performs after a flush, and they sell the fluid at the dealership, they say the same about the engine coolant, yet people have reported debris in the fluid during a water pump change and have decided to flush the entire system
i think the only straight answers available are ones i conclude myself, scary shit
blackfoot
12-09-2007, 11:30 AM
they are on crack, if they say to never do a cflsh or anything..
if they mean sealed from the factory, it must be like the new mustang engines. no dip stick.. you actually have a drain plug at the bottom. but y ou also pump fluid back in through the same hole
its a bit of a PIA. but it still gets done, and i recomend your maintenance flush's. to maintain the life of hte vehicle anyways!
b18a1+gsr-trans
12-09-2007, 01:01 PM
i hear ya man, i want to change/flush all fluids on this car, including the rear diff fluid cause this stuff has 160000km on it, maybe thats why the rear diff seals go on these cars, because after 10 or so years the fluid looses viscosity
and i wonder if rpm is determined in the tranny by hydraulic pressure and i wonder if that changes with 10 year old fluid that is breaking down?
i just pulled that outta my ass, i have no idea how a tip tranny works
now i dont even wanna drive the thing till i change all that stuff
lol probly gonna be like $250-300 in fluids
Broke4speed
12-09-2007, 03:49 PM
Why the fuck are you revving a 30v to 8500 rpm, are you thick or something?
Andre
12-09-2007, 04:11 PM
Why the fuck are you revving a 30v to 8500 rpm, are you thick or something?
umm
when crusing and floored to pass will lock at 8000rpm and pull from there, if the pedal is held just above the floor it will select a regular passing gear
That sounds weird, and not normal. Aren't there tons of VW/Audi boards? I simple post on there would probably answer your Q. Let us know, I'm curious.
b18a1+gsr-trans
12-09-2007, 04:35 PM
yup, thats gonna be my next step, there is only 2 boards that ive found that have more than a couple hundred members and a good tech section, i just didnt want to get shunned as a newb with my first post being a question on my "sign up" day :oops: , but my searches give me nothing, i was just hoping to find someone local that works on their own audi and has some backround. i will update the thread when i get an idea whats going on
b18a1+gsr-trans
12-09-2007, 04:46 PM
Why the fuck are you revving a 30v to 8500 rpm, are you thick or something?
thats what i would say to someone with a stock B18a trying to rev it to 8500rpm
except i would say that because i know the valve springs are the weak point at that rpm and WILL allow the valves to touch the pistons, bottom end doesnt have a problem because i have seen ls-vtec's run around 8500rpm
care to share about the 30v? or you wanna keep it a secret
mx3frik
12-09-2007, 05:02 PM
sorta sounds like the transmission is slipping sorry to be the one to say it :shock:
b18a1+gsr-trans
12-09-2007, 05:26 PM
sorta sounds like the transmission is slipping sorry to be the one to say it :shock:
an audi technition told me that aswell, but in the same breath he told me a code should be set indicating a tcc or clutch pack slip, he assured me that if there was any sort of tranny problem i would have a code or codes indicating exactly what it was. Mark motors on huntclub is were i had it checked out before i bought it, they ran a diagnostic/scan and performed a pre purchase inspection and a safety
tranny= $4500 rebuilt $6000 new, so im gonna hope your wrong :lol:
Doolie2.0T
12-09-2007, 05:30 PM
The motor could have a neuspeed chip, or some ebay chip. Did you ask? Those usually remove rev-limiters or raise them.
Either way, the 30v v6 revving @ 8000+rpm is useless for power, the ECU will not know wtf to do with that.
b18a1+gsr-trans
12-10-2007, 02:35 AM
The motor could have a neuspeed chip, or some ebay chip. Did you ask? Those usually remove rev-limiters or raise them.
Either way, the 30v v6 revving @ 8000+rpm is useless for power, the ECU will not know wtf to do with that.
i did ask the guy if he chipped it or had anything other than stock done to it, he said no, i believe him, he owned the car for 4 1/2 years
so are you saying i SHOULD have a rev limiter?
Doolie2.0T
12-10-2007, 07:28 AM
if its not chipped. hell yes. like every other audi in the world.
Broke4speed
12-10-2007, 10:15 AM
Why the fuck are you revving a 30v to 8500 rpm, are you thick or something?
thats what i would say to someone with a stock B18a trying to rev it to 8500rpm
except i would say that because i know the valve springs are the weak point at that rpm and WILL allow the valves to touch the pistons, bottom end doesnt have a problem because i have seen ls-vtec's run around 8500rpm
care to share about the 30v? or you wanna keep it a secret
The secret is that no VW/Audi engine is designed to rev that high, simple as that. It may say so on the tach, but the germans build engines differently than the japs, and valve float happens VERY early after the redline. Quite simply, you have to take everything you think you know about engines, and toss it out the window. Japs make high-revvers, germans make low-end torquers with low redlines.
b18a1+gsr-trans
12-10-2007, 12:39 PM
if its not chipped. hell yes. like every other audi in the world.
wow, bernie at mark motors on huntclub(service guy) aswell as a mechanic i spoke with there both looked at me like i was on crack when i asked what the rev limit should be on this motor. i approached both at different times and i asked the same question.
i even added it was stupid not to equip a motor with some type of rev limiter, bernie replied its stupid to rev a motor that high on a regular basis, and the mechanic knew nothing of any rev limiter
i think i now know why audi's are prone to problems, theres fucking retards working on them, and they're giving new owners uneducated best guesses as information
great, so i had fucking monkeys look my car over before i bought it, thats just great
b18a1+gsr-trans
12-10-2007, 12:45 PM
Why the fuck are you revving a 30v to 8500 rpm, are you thick or something?
thats what i would say to someone with a stock B18a trying to rev it to 8500rpm
except i would say that because i know the valve springs are the weak point at that rpm and WILL allow the valves to touch the pistons, bottom end doesnt have a problem because i have seen ls-vtec's run around 8500rpm
care to share about the 30v? or you wanna keep it a secret
The secret is that no VW/Audi engine is designed to rev that high, simple as that. It may say so on the tach, but the germans build engines differently than the japs, and valve float happens VERY early after the redline. Quite simply, you have to take everything you think you know about engines, and toss it out the window. Japs make high-revvers, germans make low-end torquers with low redlines.
no one is gonna care if mark motors burns down right?
edit: just thought of it......why isnt my motor absolutely fucked right now?
b18a1+gsr-trans
12-15-2007, 10:15 AM
well, so far (in the last 5 days) the only reply to my situation on audi specific forums is that there is a rev limiter and there is also a CEL code specifically for exceeding maximum engine speed
buuuuuut
i have no codes
Must have a Honda VTEC chip/tune/install/ego/brag/sweet. I'm thinking Type-R as well.
b18a1+gsr-trans
12-15-2007, 10:42 AM
there are only 3 outcomes in this situation
1) the ecu was chipped and someone did valve train upgrades (wich would be sweet)
2) the ecu was chipped and i am the luckiest muthafucka on the planet for not blowing this motor
3) there is something superfucked going on
2 and 3 will make me call a lawyer and see if there is anything that can be done against a dealership for missing this on the pre-purchase inspection
right now my best guess is they never did a scan on the car while inspecting it
and i will go after them IF an aftermarket chip is detectable on a scan (vag-com)
i still really dont know what the fuck is going on
Broke4speed
12-15-2007, 12:55 PM
There are no valvetrain upgrades for that motor. The 30v is the most unsupported engine in the world. Grandad's grocery cruiser FTW!
You're lucky as hell, although...I'd like to see those piston tops, just in case ;).
You are a fucking idiot that knows dick all about cars aside from what you learned cutting old parts off of junkyard wrecks.
Shut up.
srswarts3
12-15-2007, 07:13 PM
You are a fucking idiot that knows dick all about cars aside from what you learned cutting old parts off of junkyard wrecks.
Shut up.
you need to count to 10 and take a breather, holy shit.
to the OP.....stop revving your damn audi to the moon. there is no need for discussion. rods will fly out. or just keep doing it till it blows up, which ever you prefer. you seem like the kind of guy to take the second option.
b18a1+gsr-trans
12-15-2007, 08:08 PM
There are no valvetrain upgrades for that motor. The 30v is the most unsupported engine in the world. Grandad's grocery cruiser FTW!
You're lucky as hell, although...I'd like to see those piston tops, just in case ;).
most unsupported? really? did you know VW calls this motor the VR6
http://www.jwelty.com/dubtuning/engines/30vv6.html
b18a1+gsr-trans
12-15-2007, 08:12 PM
You are a fucking idiot that knows dick all about cars aside from what you learned cutting old parts off of junkyard wrecks.
Shut up.
you need to count to 10 and take a breather, holy shit.
to the OP.....stop revving your damn audi to the moon. there is no need for discussion. rods will fly out. or just keep doing it till it blows up, which ever you prefer. you seem like the kind of guy to take the second option.
you read the part i wrote about this being an automatic transmission....right?.....it selects the rpm and gear for me under certain throttle conditions.......and you read the part where i said i was gonna drive like a granny till i get this sorted out
GTFO
srswarts3
12-15-2007, 10:25 PM
nope, i don't waste my time reading dumb threads, and i didn't know. sorry bout that.
maybe you should go bring your car to someone that does know, before your engine goes kaaaboooom. redliners is not a garage.
b18a1+gsr-trans
12-16-2007, 01:42 AM
nope, i don't waste my time reading dumb threads, and i didn't know. sorry bout that.
maybe you should go bring your car to someone that does know, before your engine goes kaaaboooom. redliners is not a garage.
mark motors on huntclub (an audi dealership) are the ones that told me its ok
this is the problem bud, the people that are suppose to know....dont, so now im on audi forums and redliners
maybe you should read this dumb thread before you post in it and look like a retard
k
thx
bye
to the OP.....stop revving your damn audi to the moon. there is no need for discussion. rods will fly out. or just keep doing it till it blows up, which ever you prefer. you seem like the kind of guy to take the second option.
Where did you learn about motors oh learned one?
III76
12-16-2007, 11:18 AM
You are a fucking idiot that knows dick all about cars aside from what you learned cutting old parts off of junkyard wrecks.
Shut up.
so slammed, what do you think the problem is?
seeing that you just love to critisize everybody and everything on thie site. please, enlighten us you dumb fuck.
You can lead a horse to water. But you cant make him think.
You can lead a horse to water. But you cant make him think.
Wow, that was deeeeeep.
I dont care about your sex life.
There are no valvetrain upgrades for that motor. The 30v is the most unsupported engine in the world. Grandad's grocery cruiser FTW!
You're lucky as hell, although...I'd like to see those piston tops, just in case ;).
most unsupported? really? did you know VW calls this motor the VR6
http://www.jwelty.com/dubtuning/engines/30vv6.html
Its not a Vr6. But it certainly has MOUNDS of support. But not for junkyard diver idiots like him.
example:
http://www.034motorsport.com/product_in ... cts_id=555 (http://www.034motorsport.com/product_info.php?cPath=28_62&products_id=555)
solid lifters, upgraded springs, retainers... and before you smart asses say its for the 1.8T the valvetrain components are interchangeable on ALL of that series of 5V motors from 1.8T to 2.8. Although the sodium filled exhaust valves are not used on the NA motors.
8K reving is done on all the time on the stock hydros on a lot of the race cars, but extended high rev racing usually needs minimum of retainers and springs. High lift cams, combined with solid lifters, extended valve springs etc, and you have a 10-12K reving race motor. Hope you upgraded those rods.
Anything smart to say now dingbats?
Broke4speed
12-16-2007, 01:05 PM
There are no valvetrain upgrades for that motor. The 30v is the most unsupported engine in the world. Grandad's grocery cruiser FTW!
You're lucky as hell, although...I'd like to see those piston tops, just in case ;).
most unsupported? really? did you know VW calls this motor the VR6
http://www.jwelty.com/dubtuning/engines/30vv6.html
The 12v VR6 and the 24v VR6 are well supported. The 30v is a V-6, without aftermarket support.
Broke4speed
12-16-2007, 01:07 PM
You are a fucking idiot that knows dick all about cars aside from what you learned cutting old parts off of junkyard wrecks.
Shut up.
Best way to learn.
I sense some jealousy.
I sense a complete lack of knowledge. Way to keep your head in the sand.
Go play with some 8V turbos and run 16s.
Broke4speed
12-16-2007, 01:43 PM
I haven't run 16s since 1998.
Got some Audi knowledge eh.
my mistake. None of your jack-in-the-box hoopties have run that long. Take credit for some of dans work then.
b18a1+gsr-trans
12-16-2007, 03:17 PM
thanks to slammed's pm, i have found the proper mode of search and have discovered that this transmission was most popular with A8's
there is a learning computer for this tranny that works with the main ECU, and after it thinks it has seen all your driving habits will set its own custom shift pattern for you. the sport shift pattern has no rev limit and these computers are notorious for learning wrong, but function perfect while learning, best solution is to reset the TCU every 4-6 months, and if you want it to learn properly you must drive in tip ALOT of the time
as for holding my foot just above the floor to select a normal passing gear, this problem was discussed many times and always came back to the valve body inside the tranny being gooed up(accessible from under the car) 2 hours labor and $400 for a performance valve body that tip shifts in less than 0.15sec. if floored
so i get my rev limit back by resetting the TCU, and i could have some sweet shifts if i decide, for $400 bucks, or i could just clean the original
i will post back how the reset goes, i think im gonna have to dig for the TCU so i may not do it right away
thank you slammed for the pm and all the entertainment :lol:
Broke4speed
12-16-2007, 03:20 PM
It's nice to know I have such power over you that you dig into my life, and know my friends names, Mr. Slammed.
Its nice to know that your best material is "mom" jokes. :roll:
Broke4speed
12-16-2007, 07:16 PM
Damn, you owned me on that one.
I tip my hat to you and your negativity-filled existence.
I am a vacuum. Watch me suck.
ignite
12-17-2007, 02:57 PM
Hopefully your Nazi-mobile will catch on fire and you'll die.
Simpo
12-17-2007, 05:50 PM
Hopefully your Nazi-mobile will catch on fire and you'll die.
http://uaflibrary.us/moviebrowser/covers/custom/amen.jpg
b18a1+gsr-trans
01-22-2008, 04:01 PM
thanks to slammed's pm, i have found the proper mode of search and have discovered that this transmission was most popular with A8's
there is a learning computer for this tranny that works with the main ECU, and after it thinks it has seen all your driving habits will set its own custom shift pattern for you. the sport shift pattern has no rev limit and these computers are notorious for learning wrong, but function perfect while learning, best solution is to reset the TCU every 4-6 months, and if you want it to learn properly you must drive in tip ALOT of the time
as for holding my foot just above the floor to select a normal passing gear, this problem was discussed many times and always came back to the valve body inside the tranny being gooed up(accessible from under the car) 2 hours labor and $400 for a performance valve body that tip shifts in less than 0.15sec. if floored
so i get my rev limit back by resetting the TCU, and i could have some sweet shifts if i decide, for $400 bucks, or i could just clean the original
i will post back how the reset goes, i think im gonna have to dig for the TCU so i may not do it right away
well. i did more searching, turns out when the cluster was replaced it was never soft coded for a 6cyl, it is reading my car as a 4cyl, and because the ECU and TCU are pluged into the cluster thats why my rpm is at 1000 and the tranny computer doesnt know what the hell is going on, i have been assured though that the stock engine speed limiter (7000rpm) is still intact, and if the car hasnt bucked i havent hit it.
so all my journeys and stress have been at rpms less than 7000, phew, my tach would have had to be in the 9300rpm range to hit the limiter at 7000.
so now i have to get my vag cable working with my laptop so i can change 1 number in a 6 digit code, and im still going to reset the TCU because whatever it has learned is fucked.
yay!
Good to hear it. If it had hit 9k, it would have 'splode-did
b18a1+gsr-trans
01-27-2008, 01:02 AM
i gotta admit, now that i know whats going on and can drive the car accordingly, i kinda like it this way, people make noise when they see the tach rev past red line then off the 8000 and stop on the clock, i like it too, it makes me feel like when i was a kid and put playing cards rubbing in the spokes of my bicycle
b18a1+gsr-trans
02-22-2008, 11:16 PM
i hear ya man, i want to change/flush all fluids on this car, including the rear diff fluid cause this stuff has 160000km on it, maybe thats why the rear diff seals go on these cars, because after 10 or so years the fluid looses viscosity
and i wonder if rpm is determined in the tranny by hydraulic pressure and i wonder if that changes with 10 year old fluid that is breaking down?
i just pulled that outta my ass, i have no idea how a tip tranny works
now i dont even wanna drive the thing till i change all that stuff
lol probly gonna be like $250-300 in fluids
just to update, i have changed
rear diff oil=2L $82
coolant=4L concentrate $30
PS fluid=2L $53
tranny oil=10L $247
tranny filter and gasket=$225
all timing components=$675
ECT sensor=$40
total $1352
if i didnt do my own work, labor would have been nuts.
i got more to do
front diff fluid
transfer case fluid
brake fluid
and cant forget 7.5L of quality synthetic oil for an oil change
this thing better last forever
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