It's not being said that turners are bad for tranny's.

What Greg Evans told me (designer of the Monster Box) is that tuners that adjust line pressures in anyway shape or form are not good when using this tranny or just the valve body in a stock tranny.

In a sense, if you were to install the Factory Tech valve body and use a tuner that adjusted line pressures you'd really be almost doubling the pressures even if it's only at the shift points. If a tuner and the valve body were used together a person couldn't stand how hard the vehicle would shift not to mention the possible mechanical problems down the road.

Believe me, I'm speaking from experience. Before I switched to the SCT switch chip I was using a chip from Kenne Bell that came with the supercharger. With the stock tranny this chip was fine, but when I had the Monster Box installed that thing shifted so hard I thought me teeth were going to fall out. I made it a point to inform the guy who did my dyno tuning not to adjust any line pressures. Now, with the SCT chip she shifts nice and firm but not to firm. Firm enough though like I said above that it will break the tires loose when shifting from first to second. That's only if I really get on it though.

 

Sorry, I mis-read

Or read too much into it.

Just a pet peeve - I had a big argument with someone on another site about 6 years ago about this topic. Of course, he was trying to sell valve-bodies

Of course a chip that adjusted line pressure AND a valve body would be bad for the tranny.

I'll shut up now

 

I'm running at 15% firmer on my SCT tuner. I have the Scan Gauge 2 and I used the X Gauge to add the Transmission Line Pressure PSI. I'm going to be towing on monday and I'll write down the maximum line pressure psi with the 15%. Then in a month or so when I get my Factory Tech Valve body I'll check the line pressure again and record the difference.(Just the Valve Body with the stock firmness setting) The Scan Gauge is very usefull.

 

No problem! Sorry if I came accross as if I was arguing with you. I'm just adding my $.02 based on my personal experience and research.

 

Not at all... not at all...

 

I think the information you gather will be very interesting...to say the least. Will certainly keep an eye-out for the info.


biz

 

I put mine in my truck shortly after it came in , never looked back , I got the 2c model , great shift improvement ! , I got mine from chickenears , Craig.

 

How much longer does it make you tranny last (lets say u take care of ur tranny really good in the first place)? Is it a noticable gain? Also what do you guys think about BTS valve bodies? I have read the installation tips on guzzles site and it looks pretty strait forward. I kno guzzles page is a diesel site, but its still the 4R100. So ill post the instructions

http://guzzle.rbmicro.com/bts.html

Enjoy.

 

Just installed my BTS VB today. My truck has 160K on it and I was looking for anything to keep the trans alive a little longer.

When I contacted BTS, they were a little apprehensive about my V10/4.56 combo. They understandably haven't had much experience with the V10s, but were extremely helpfull and professional about getting me the right combination.

Installing the VB was a snap and has made a noticeable difference during unloaded driving. I will probably droop the VB next week and firm up the 2-3 shift a little.

I was considering the FT VB, but my friends all run BTS with good results. Overall, great product and a great company to deal with.

Marcus

 

only problem i had was the cold air kit made it run lean and throw the light on. a 10 % increase with the tuner on mass air tune fixed it.
each motor responds different so it may and may not cause a code problem. tuner wise diablo is the best to use and thier factory v10 93 tunes are nasty.

 

Its good to hear that someones usin BTS on their v-10s.

 

I was thinking about getting the BTS also

 

I've been running my FT Valve Body for several weeks now and watching the trans line pressure on my Scan Gauge 2. Prior to installing the FT Acumulator I was running a 15% shift firmness increase via my SF tuner. Empty with the 15% setting I managed to spike the scan gauge reading at 99 at WOT a time or two. Right before I got the FT accumulator installed I set the firmness back to stock settings and drove the truck about 10 miles watching the scan gauge to get a rough idea what the stock line pressures are. With the Factory Tech accumulator installed the shift firmness was much firmer than the 15% increase in firmness I was running with my tuner. Despite the shifts being alot firmer with the FT unit the line pressures were definatly lower than with the 15% tuner firmness installed. The FT line pressures looked to me to be very close to stock line pressures EXCEPT at WOT where the pressure rose a tad more than stock but not more than the 15% setting. When I first got my SF tuner I ran the 25% firmness increase setting for a couple months. The FT accumulator is definatly firmer than the Max 25% setting with the tuner. I did not have a scan gauge at the time I was running the 25% firmness setting so I don't know what the line pressures were, but I'm shure they were a bit higher than with the 15% setting I was.

Right now I'm running a custom 87 tune by Mike @ 5 Star. He reduced the shifting lag time some and I also have the 1-3 WOT shift points upped 3-4 mph. So far all the tuning has been working great with the FT accumulator and the tuning only seems to enhance its performance.

 

dkf -- Very interesting report on the FT valve body install. So...if I read it right, then the FT valve body does not really increase the line pressure (keeping it mostly stock)...compared to the 15 or 25% tune programmer.

So...as a result...maybe the FT valve body will help the 4R100 tranny last longer than a tuned tranny with the line pressure increased.

Very valuable info...IMO!

Rep Points added!


biz

 

Yeah the FT accumulator has little to no effect on line pressure. I gather that using a tuner to increase firmness at shift points is for the most parts hard on the pump but can starve the other tranny components of oil.