New raybestos Allison clutches
- Thread starter Diesel Technology Source
- Start date
just flushed mine for the first time with good old dexIII. 30k and it smelled and looked nasty. magnite and external filter looked good inside though 
. ill need to pick up that citgo next go around.
. ill need to pick up that citgo next go around.
I meant for Citgo fluid, I cant find it anywhere in AZ
Kind of funny when you can find Petro Canada. :thumb:
PML pan and customized Fumoto drain valve and you can catch the fluid in a clean and controlled manner AND get well over 90% out of the pan. No more1/2" plus left in the bottom.
Thats good to know, BUT have you ever thought you might get more than 26 passes if you used quality oils? Or do you think since it doesn't even last long enough to wear the oil out it doesn't real yeven matter?
yes i have believed that a better fluid would maybe help with a few more passes, but we have been changing a few things around and i wanted to prove to myself that a cheap fluid could hold the power. like i said after this past few events the wal mart brand oil came out looking like new, i now have alot of confidence to spend more money on better fluid, we had put the dex 6 in our truck here at custom auto a year ago with a similiar trans build to mine, alot different but similiar, and with a year of beating on it, dynos, street, 10,000 miles ish, it looked great when dropped, just the c3 pack took a beat down but never burnt the fluid, so thats why i switched to that, Plus checker hooked it up for 4.76 a quart lol i have to be cheap to afford fuel money:happy2:
yes i have believed that a better fluid would maybe help with a few more passes, but we have been changing a few things around and i wanted to prove to myself that a cheap fluid could hold the power. like i said after this past few events the wal mart brand oil came out looking like new, i now have alot of confidence to spend more money on better fluid, we had put the dex 6 in our truck here at custom auto a year ago with a similiar trans build to mine, alot different but similiar, and with a year of beating on it, dynos, street, 10,000 miles ish, it looked great when dropped, just the c3 pack took a beat down but never burnt the fluid, so thats why i switched to that, Plus checker hooked it up for 4.76 a quart lol i have to be cheap to afford fuel money:happy2:
thanks for the info, ill talk to you more about it at dpc, up untill the last couple trans build the fluid was not worth saving, now that it seems to be holding alot better and i switched to a better fluid i need to do something like a few of you guys are talking about. thanks again for the info
I don't know about basing the healthiness of your fluid based on color is very accurate. It's red because they dye it that color. I also know that Transynd comes in many shades of red.
Just like motor oil some stays more Golden in color than others as perhaps the detergent isn't as effective from brand to brand.
With Transmission fluid it's the additives and viscosity that break down with use and the heat generated. Sure it turns brown and smells burnt with excessive heat and or slippage but is color a accurate way to tell if it's good or bad?
Maybe in some cases with the quick turn around as your describing but how much effectiveness of the additives and amount of viscosity weight have been broken down? Lets say Near the end of the second use the fluid regardless of the color with the abuse it's been through and temperatures it's seen I would say it's seen it's better days.
I'm by far know nothing but I'm just asking.
Just like motor oil some stays more Golden in color than others as perhaps the detergent isn't as effective from brand to brand.
With Transmission fluid it's the additives and viscosity that break down with use and the heat generated. Sure it turns brown and smells burnt with excessive heat and or slippage but is color a accurate way to tell if it's good or bad?
Maybe in some cases with the quick turn around as your describing but how much effectiveness of the additives and amount of viscosity weight have been broken down? Lets say Near the end of the second use the fluid regardless of the color with the abuse it's been through and temperatures it's seen I would say it's seen it's better days.
I'm by far know nothing but I'm just asking.
thanks mike, i need to call ya soon have a couple questions?
well said, i agree you cant tell by the trans fluid color to a point, im sure you do lose some of the viscosity over time. In overkill i have a 4 fan dual trans cooler, i never see over 180 at the track even if i make back to back rounds, so i dont think heat in my case plays a role, break down could still play a role as you have stated with out being seen, with out testing theres no way to be sure i agree with that as well. When i run the red truck or overkill it obvious after a few runs in the color tho, the trans is either spot on or self destructing in a few short passes, so usually its not red lol
This last one tho went 9.77 after about 16 passes and when i pulled it trans fluid was great, c3s just starting to warp, i guess i just have a back yard way of testing fluid cause i pull my trans almost every 2 events to check it out, my fluid never gets a chance to change much, its either burnt or not Back around to the original topic, few here remember, but Raybestos DID have a clutch out back around 2003 that was not up to the task.
THIS is why guys like Mike test quietly and say little until thoroughly evaluated. The clutches need to get into the hand of guys that can destroy a lesser clutch in short order so that comparative results can be seen.
THIS is why guys like Mike test quietly and say little until thoroughly evaluated. The clutches need to get into the hand of guys that can destroy a lesser clutch in short order so that comparative results can be seen.
Hey Guys,
i just wanted to clear up a few things... Wow theres lot of passion here and thats great. I dont see a problem with someone who wants to give his feedback to on what he found so far on and wave the Raybestos flag if he wants to...He just wants to share hes positive feed back with the duramax community. Does that mean Mike L is bashing Raybestos? No hes taking a wait and see attitude. No problem
OK the famous Red/Orange line was the paper core put on up side down like Mike L states? hmmm i know he got that from Roy at Alto... is Roy right ? Well in the process that Alto uses the line on the paper core is an indicator to put that side face down on the steel core.... Not all manufactoring are the same.
While process methods are propriortary Raybestos has data to support the orination of the friction material and the performance of the final assembly... thats coming from the Raybestos engineers ... In other words the facings was put on correctly and there are no worries in testing these frction plates.
i read about some people mentioning the Red devils plates these samples are nothing like the Red devil/stage 1 plates... This is a totally different deal
i just wanted to clear up a few things... Wow theres lot of passion here and thats great. I dont see a problem with someone who wants to give his feedback to on what he found so far on and wave the Raybestos flag if he wants to...He just wants to share hes positive feed back with the duramax community. Does that mean Mike L is bashing Raybestos? No hes taking a wait and see attitude. No problem
OK the famous Red/Orange line was the paper core put on up side down like Mike L states? hmmm i know he got that from Roy at Alto... is Roy right ? Well in the process that Alto uses the line on the paper core is an indicator to put that side face down on the steel core.... Not all manufactoring are the same.
While process methods are propriortary Raybestos has data to support the orination of the friction material and the performance of the final assembly... thats coming from the Raybestos engineers ... In other words the facings was put on correctly and there are no worries in testing these frction plates.
i read about some people mentioning the Red devils plates these samples are nothing like the Red devil/stage 1 plates... This is a totally different deal
Pete you know I was not bashing Raybestos and the orange line info did not come from Roy at Alto. You were working for Alto when I tested the Red Devils and they failed. No big deal as ideas don't always work the first time. I am very carefull in my testing and hold back information till I have facts. Testing has to be thorough. I have your C3/C4 clutches in 2 trucks and your C2 clutches in 2 other trucks. This is not good testing as all the clutches should have been Raybestos. Even the testing I am doing now may not be conclusive as it is a mixture of Alto and Raybestos. You would not test a motor with 2 different style rods or pistons, right? It would be nice to have a few sets of complete modules to test in some trucks and then we would have a much better idea what Raybestos can do. I'm still waiting on C1's but without the rest to go with it it's pointless. Brad at Calvins won't install his set of clutches till he has all of them for a true test. Let me know if you still want my help.
Until my Allison days I specified ONLY Raybestos clutches in teh transmissions that I had built so way back in the Joe Webb days I was asking why no Raybestos? Then there was the initial release that was less than stellar. I was disappointed moreso that Raybestos did not stick with it.
My point here is I really dislike waving a flag saying that something is awesome until proven. All this cheerleading does is move the market and the consumer to try the latest and greatest in an effort to keep up with the Jones's. If it works then great, but if not then there's all this old news chatter about how clutch X is the go to clutch only that is yesterday's news. They should really be TESTED before promotion plain and simple. Anyone here remember the very first Edge Juice?
I'd love to see Raybestos succeed and if they prove themselves I will specify them. Right now I specify the Alto's as they have done well for me.
I didn't start into this yesterday
I will be putting these raybestos clutches to the test on the street and on the track for dts & blackout this year and will be doing alot of daily driving this year before the engine build later this year.
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He spoke the truth. I did the testing. Back then raybestos was not very interested in the diesel market. Their first clutch effort for the Allison was oem equivalent. They were the green clutches with C2 one sided Z-Pack. It's taken a while for them to get interested and since Pete Santiago went to work for them they got real interested. I expect great clutches from raybestos as they are more than capable of building high performance clutches.
I also tested the new Borg Warner clutches out of the 2011 Allison on a few race trucks and found out what I needed to know. I sent my report to Allison. I will post the results one of these days.