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VNT Help for VNT cars

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Old 07-11-2006, 12:11 AM   #46
 
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Quote:
Originally Posted by The Pope
on another trip down a guy from Portland, Stephan, had quarts of oil flying out everywhere as we blew down the freeway going near 100 MPH. I played dumb and flowed him. Took about an hour to wash that crud off in Vegas. His red Shelby Daytona had some issue's. My GLHS started REALLY losing oil on the way home. I lost count of the quarts.


Maybe thats why there is still oil on the bottom of the car


The way home kinda sucked the worst. Couldnt really go over 80 and use any kinda boost w/o blowing oil all over.
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Old 07-11-2006, 04:22 AM   #47
 
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Quote:
Originally Posted by The Pope
I drove a brand new competition coupe Shadow, our dealer got one. Put the thing in second gear and at 950 RPM in second with 4 miles on the car I floored it. It spooled really hard at 1,200 RPM and hit 14PSI at 1,400 RPM.
Just for grins, I went for a drive in my Daytona to see if I could duplicate these claims.

My car runs better than stock (or new). Less than 2000 miles ago the head, manifolds, cam, & turbo were all replaced with an assembly that was taken off a NEW (not reman) VNT warranty motor. My Daytona has a custom cal done by a DC engineer, that gives 14.5 psi boost max, and overboost cutout has been disabled. The only other mod to the car is a stainless 2.5" cat back exhaust.

But back to the test. First off, it is very difficult to do 950 rpm in second gear. That is idle speed. I had to use the brakes to get it that slow as short shifting from first, or taking off in second always netted about 1100-1200 rpm in 2nd minimum.

So at 950 rpm in 2nd, stabbing the throttle was a big bog initially. But it started to wake up a little about 1200 and by 1500 I had a whopping 3 psi boost (using a stock Daytona gauge). So I don't believe at all the claim of full boost by 1400 rpm. And just like Steve's (and others) experience, I had full boost just about the time I reached 2100 rpm. BTW, I also tried 3rd & 4th gear starting at 950 rpm with the exact same results.

A new stock VNT cal will NOT boost to 14psi (the stock gauge may indicate that, but stock gauges are notoriously inaccurate). Overboost cutout will come in well before that happens. That situation was such a problem for some customers that Chrysler released the previously mentioned TSB. It was never made a recall, but was applied only to those cars where the customers complained about the overboost cutout. That TSB made the car into a real dog, but that customer would never complain about OB cutout again, because it wouldn't ever hit it.

Barry

Last edited by sdac_guy : 07-11-2006 at 09:13 AM.
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Old 07-11-2006, 06:38 AM   #48
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...you're arguing about whether full boost hits at 1400 or 2100 RPM.
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Old 07-11-2006, 10:04 AM   #49
 
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Quote:
Originally Posted by The Pope
I drove a brand new competition coupe Shadow, our dealer got one. Put the thing in second gear and at 950 RPM in second with 4 miles on the car I floored it. It spooled really hard at 1,200 RPM and hit 14PSI at 1,400 RPM. Then the tires broke lose and it held at 5,600 RPM and I let off. My GLHS will hit full boost at 2,000 RPM with a S60 turbo. Full boost at 2,100 RPM with a VNT is when you floor it at 2,000 RPM.
O how I love messing with Steve, it is so fun as it is so easy. You can just through any thing out there and he flys off the handle in 1 second, never thinks about it, just flips. I shouldn't get him worked up there is no challenge to it but I can't help it with some people.

Lets "look" at what I said. A few things here should give you an idea whats going on. As Barry said a VNT from 950 starts spooling at 1,200, no lie. The car I drove was brand new but only 4 miles on it right? How do you suppose that I got to drive one, as I never said I owned it with 4 miles on it? In 1990 I was 20 years old, I was a lot boy! Where do you suppose I drove this car with 4 miles on it? So I have never owned a 90' VNT shadow and I drove one with 4 miles on it. I was driving the car in a beat up parking lot, not out on the street. Think about one other obvious thing I said here. It spun the tires at 1,400 RPM and tached to 5,600. How many of you that "know" these cars actually think they make enough power at 1,400 RPM to spin the tires, 14 PSI of boost or not? Think this thing has a built 440 under the hood? LMAO. As it was making boost and under a good load it crossed 1,300 RPM and over a dirty parking lot it started losing traction. As it crossed 1,400 RPM both the tach and the boost gauge spiked. Anyone that has ever hit water or a slick spot has done this, it should have been clear this is what happened from saying it hit 5,600 RPM. Then to stir the pot I brought up the GLHS, a heavy modded car that stabbing the gas without a turbo would spin the tires at 2,000 RPM. My GLHS has WAY too small of a turbo on it with a S60 and it does make boost at 1,800 RPM. The boost needle is also flashing straight up past 2,000 RPM. Anyone that knows The Pope knows what serious mods the car has, and was aimed at being a street car. My drive to Vegas was dumb. Me and CRAZYMATT had just finished putting on the turbo to go to Mopars at the Strip in Vegas. Problem was it was 2:30 PM and thursday, the show started the next day on friday. 600+ miles after twin falls there is nothing in the middle of northern Nevada. Being east coast people I'm sure you don't see dead flat roads that you can see nearly 100 miles on. We hit a straight away that we could see the end of at 110 MPH and 45 minutes later we weren't at the other side, nor did we see one car or house. Me and Matt had spent too much time and for me money not to go, we took a huge chance making the run. The car hit 21 PSI with +20s and detonated really hard with the new S60 and broke it in Spokane. But still bringing up what did happen, but not all the details stirs the pot. What happened during the Mopar show power wise was published. Done on a broken engine was not hidden from the TD people, Dempsey and his mini were there and knew about it when I barrowed there G valve. And CRAZYMATT was along for the whole ride. Sorry all, Steve is just such a big fish to hook a guy can't bring himself to real him in so fast,
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Old 07-11-2006, 11:38 AM   #50
 
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Quote:
Originally Posted by The Poope
O how I love messing with Steve, it is so fun as it is so easy. You can just through any thing out there and he flys off the handle in 1 second, never thinks about it, just flips. I shouldn't get him worked up there is no challenge to it but I can't help it with some people.

Lets "look" at what I said. A few things here should give you an idea whats going on. As Barry said a VNT from 950 starts spooling at 1,200, no lie. The car I drove was brand new but only 4 miles on it right? How do you suppose that I got to drive one, as I never said I owned it with 4 miles on it? In 1990 I was 20 years old, I was a lot boy! Where do you suppose I drove this car with 4 miles on it? So I have never owned a 90' VNT shadow and I drove one with 4 miles on it. I was driving the car in a beat up parking lot, not out on the street. Think about one other obvious thing I said here. It spun the tires at 1,400 RPM and tached to 5,600. How many of you that "know" these cars actually think they make enough power at 1,400 RPM to spin the tires, 14 PSI of boost or not? Think this thing has a built 440 under the hood? LMAO. As it was making boost and under a good load it crossed 1,300 RPM and over a dirty parking lot it started losing traction. As it crossed 1,400 RPM both the tach and the boost gauge spiked. Anyone that has ever hit water or a slick spot has done this, it should have been clear this is what happened from saying it hit 5,600 RPM. Then to stir the pot I brought up the GLHS, a heavy modded car that stabbing the gas without a turbo would spin the tires at 2,000 RPM. My GLHS has WAY too small of a turbo on it with a S60 and it does make boost at 1,800 RPM. The boost needle is also flashing straight up past 2,000 RPM. Anyone that knows The Pope knows what serious mods the car has, and was aimed at being a street car. My drive to Vegas was dumb. Me and CRAZYMATT had just finished putting on the turbo to go to Mopars at the Strip in Vegas. Problem was it was 2:30 PM and thursday, the show started the next day on friday. 600+ miles after twin falls there is nothing in the middle of northern Nevada. Being east coast people I'm sure you don't see dead flat roads that you can see nearly 100 miles on. We hit a straight away that we could see the end of at 110 MPH and 45 minutes later we weren't at the other side, nor did we see one car or house. Me and Matt had spent too much time and for me money not to go, we took a huge chance making the run. The car hit 21 PSI with +20s and detonated really hard with the new S60 and broke it in Spokane. But still bringing up what did happen, but not all the details stirs the pot. What happened during the Mopar show power wise was published. Done on a broken engine was not hidden from the TD people, Dempsey and his mini were there and knew about it when I barrowed there G valve. And CRAZYMATT was along for the whole ride. Sorry all, Steve is just such a big fish to hook a guy can't bring himself to real him in so fast,

What the heck is all this mumble jumble? Any turbo car, even a VNT will not make full boost below 2,100 ESPECIALLY with no load while spinning the tires on a dirt covered parking lot.

You keep making excuses and changing stories so people won't know that ThePoope is full of it. You talk about your knowledge and racing skills, but how come EVERY post that you brag about your car, it's always some exaggerated accomplishment on 3 cylinders or blowing smoke out the back, or with 3 square wheels. Sounds like you are the one with mechanical shortcomings. Rob, the only reason I expose you continually is because there are people out there that trust and have faith in the garbage you continually spout out. I, myself, and others here do NOT like seeing people being mislead.

So... you are not full of BS? Then explain to all of us how you managed to run 190mph on a non intercooled early log induction Charger with only mods as a MP computer, cam, and 2-1/2" catback exhaust?
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Old 07-11-2006, 11:53 AM   #51
 
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Originally Posted by DirectConnection
So... you are not full of BS? Then explain to all of us how you managed to run 190mph on a non intercooled early log induction Charger with only mods as a MP computer, cam, and 2-1/2" catback exhaust?

190 kph = 118.060527 mph ?????
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Old 07-11-2006, 11:57 AM   #52
 
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Originally Posted by DodgeZ
190 kph = 118.060527 mph ?????

No... 190mph!

It's on the SDML archives and I remember those days. Gus and everyone proved him wrong but he kept to his guns. Even promised to run it in a silverstate or something timed run. I brought this up again 2 years ago and he still swears by it. Do a search on his posts on the SDML from a while back and 9 out of 10 are far fetched fantasies. I swear, I am not making this up.

The SDML archives on discs I bought soley for Gus' old tech posts and others like Zelkowski, 5digits, etc... but I had the most fun reading Rob's.(I forget his username now...)
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Old 07-11-2006, 12:18 PM   #53
 
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Quote:
Originally Posted by The Pope
Being east coast people I'm sure you don't see dead flat roads that you can see nearly 100 miles on. We hit a straight away that we could see the end of at 110 MPH and 45 minutes later we weren't at the other side, nor did we see one car or house.
You can't see a road for 100miles... there is such a thing as horizon!

If you are 6'4" tall, the farthest you can for an object that is next to the ground is 3.3miles.

Maybe you could see a mountain, which had to be 5200 feet high for it to be seen 100 miles away. But lets not talk about refraction, humidity, etc.

Granted I am being petty with just one thing you said, but its the point that you elabrish EVERYTHING you say.... all the time.

Dont argue with engineers and people like Steve who probably knows more about cars then you ever could.


Frank
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Old 07-11-2006, 12:25 PM   #54
 
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Originally Posted by Frank
You can't see a road for 100miles... there is such a thing as horizon!

If you are 6'4" tall, the farthest you can for an object that is next to the ground is 3.3miles.

Maybe you could see a mountain, which had to be 5200 feet high for it to be seen 100 miles away. But lets not talk about refraction, humidity, etc.

Granted I am being petty with just one thing you said, but its the point that you elabrish EVERYTHING you say.... all the time.

Dont argue with engineers and people like Steve who probably knows more about cars then you ever could.


Frank

http://www.skypanther.com/tim/howfar.html
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Old 07-11-2006, 07:42 PM   #55
 
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Quote:
Originally Posted by Ondonti
Your trip was not impressive. I did the same exact thing but I had a a spun bearing the whole trip along with broken ringlands.

Oh yeah, well I made the Vegas run in an 85 carbed Omni with a 4 speed With compression of 30-100-100-30. And just for fun, i removed the rocker arms on cylinders 2 and 3. I made it there in under 10 hours..... and I started in Philadelphia!
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Old 07-11-2006, 10:38 PM   #56
 
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Originally Posted by contraption22
Oh yeah, well I made the Vegas run in an 85 carbed Omni with a 4 speed With compression of 30-100-100-30. And just for fun, i removed the rocker arms on cylinders 2 and 3. I made it there in under 10 hours..... and I started in Philadelphia!
arg, lies and deceit!!!

Anyways I enjoyed pope's post where he basically takes back his statement about full spool @ 1400 rpms after he tried to make people believe it (and they didnt) just because he said it (he has a "great" repulation of making truthful statements).


You guys are all mean little bastards for proving him wrong with facts. How can he make a subjective argument work when you guys keep up all this objective crap.
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Old 07-13-2006, 12:31 PM   #57
 
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Quote:
Originally Posted by ButchSuppe
When you forgot what lag is
When you confuse lag with boost threshold.
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Old 07-13-2006, 08:05 PM   #58
 
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sorry I'm lost. What's boost threshold?
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Old 07-13-2006, 10:45 PM   #59
 
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The lowest RPM that you can make boost at.
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Old 07-14-2006, 02:29 AM   #60
 
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Boost Threshold = At what RPM the turbo starts producing positive manifold pressure, i.e. Boost.

Lag = The time it takes for the turbo to "spool up". When you press the accelerator at steady rpms and the amount of time it takes before the turbo starts producing boost, that is lag. Lag is due to inertia...

After reading a few turbo books, it drives me insane. Almost as much as someone referring to a wheel as a rim.
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