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post #1 of 9 Old 10-27-2005, 12:19 AM Thread Starter
 
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Grainger, Lag and Torque?

Now that I have your attention

In my recent post about finding out about the Grainger valve helping to alleviate turbo lag in a T1 TD, would this move the power / torque band into a danger zone as far as the A-413 or the stock 2.2 would be concerned? I've often heard that "HP doesn't break stuff - Torque does". So, that's why I'm asking. I'm not looking for any psi increase just yet, just to lessen the lag some while maintaining the stock psi levels.

Thanks! :)
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post #2 of 9 Old 10-27-2005, 01:58 PM
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I wouldnt think the grainger would be enough give you the neck snapping torque needed to start breaking everything. And yes, torque does break stuff...that and dumping the clutch at 6000rpm...or sever wheel hop (I always learn the hard way....)
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post #3 of 9 Old 10-27-2005, 02:04 PM
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I think your a little confused. A grainger lets you take control of the boost, this is a good and bad thing. If you go to high and don't watch your guages-which you do have right? IE EGT and air/fuel gauge, you will melt it. A grainger lets the turbo spool up quicker but won't give you tire melting torque unless you turn it up.
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post #4 of 9 Old 10-27-2005, 04:07 PM Thread Starter
 
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Quote:
Originally Posted by turbovanman
I think your a little confused. A grainger lets you take control of the boost, this is a good and bad thing. If you go to high and don't watch your guages-which you do have right? IE EGT and air/fuel gauge, you will melt it. A grainger lets the turbo spool up quicker but won't give you tire melting torque unless you turn it up.
Actually I don't have a TD yet But I hope to soon. And, your answer "answered" my question. I wasn't looking for the neck breaking, butt dyno "WHooooHoooo". No. It would be nice but I was just looking to fix the lag some. When I read about the G valve making the turbo spool faster I just wanted to make sure that the hp/torque wouldn't be "that" much more to start doing strange things to the car. No, just the lag I wanted to get rid of, or, most of it.

Later on in the ownership of my "hopeful" TD I will be doing some serious mods and psi increase but for right now, just the G valve and a slight bump in psi.

As far as the gauges go - I plan on installing a Boost Gauge and WBO2. Those will be the first mods I do. Then the G valve will be added and I'll play around with it to get a better feel for it.

Thanks! I knew someone would know the answer!
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post #5 of 9 Old 10-27-2005, 10:17 PM
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The problem is the auto's have boost mapping that keeps the boost low past the torque peak to keep the auto's from breaking (they're not very strong stock) A grainger will allow full boost before the torque peak which will cause lots of stress on the tranny.
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post #6 of 9 Old 10-27-2005, 10:40 PM Thread Starter
 
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Quote:
Originally Posted by GLHNSLHT2
The problem is the auto's have boost mapping that keeps the boost low past the torque peak to keep the auto's from breaking (they're not very strong stock) A grainger will allow full boost before the torque peak which will cause lots of stress on the tranny.
Even if I keep it set to near stock levels? I wasn't planning on running 14 psi, more like the stock level of the 7, 10 at wot. Maybe, something like 8-11 psi.

As a matter of fact, you made me think of something here. With that 10 sec WOT mode, what happens to that once a G is installed? Is it still there or is it increased as well. Since it's computer related I'm thinking it's actually defeated with the G valve installed, and, when a certain psi level is dialed in, THAT is the max psi, no matter what. Does this sound about right?
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post #7 of 9 Old 10-27-2005, 10:48 PM
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Your tranny will be fine if its in good shape, bands adjusted and good clean new oil-ie synthetic.

Once you install the MBC, the computer has no control, so if you set it at 10, it should stay roughly around 10, no hanging etc. It may jump around or go higher if running stock exhaust or small restrictive exhaust.
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post #8 of 9 Old 10-27-2005, 11:19 PM Thread Starter
 
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Quote:
Originally Posted by turbovanman
Your tranny will be fine if its in good shape, bands adjusted and good clean new oil-ie synthetic.

Once you install the MBC, the computer has no control, so if you set it at 10, it should stay roughly around 10, no hanging etc. It may jump around or go higher if running stock exhaust or small restrictive exhaust.
Cool news then. IF I can buy what I'm looking at the tranny will have 43k miles on it BUT, that's no reason to go higher on the psi. 10 seems to be a pretty decent number.
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post #9 of 9 Old 10-27-2005, 11:30 PM
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Yeah, I ran 12psi on the street for almost 2 years on my stockish setup, was lots of fun.
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