Im looking at a Hughes performance Th400 with the 2.75 gear set, the tech guy said theirs would handle more than 600ftlbs with slicks. I had read that the TCI ones were no good past 450ftlbso No: Wanted you alls input?????????????
I live in Kansas city Missouri near the KCIR track, the tech said it would be $1649.00 I didnt ask what the shipping would be yet.
Well, your pushing it, that's for sure.. Alan Wander has a low gear set in his, and he hasn't broken it yet with the 560 ft lbs I built for him, but he doesn't race it all that much, and runs DOT tires.. I just built one for a guy with a wild Cad motor.. 600+ ft lbs.. and I would not put a gear set in that one.. we did talk about it, and decided that there would be minimal value in ET, and a more likely possibility of breakage. Beware of the "Big Name" transmissions.. I recently went thru a 4L80E that Coan built, and I was not at all impressed.. stock type frictions/steels, big clutch clearances, stock clutch counts... and this was their big dollar unit. Question them completely on what's inside it.. you want, if you have big HP/TQ and a heavy car.. at least the following in a non transbrake, automatic/manual shifting trans: Alto Red Eagle frictions in all three clutches, with nitrited steels- At least 6 clutches in the direct pack, I have built them with up to seven in the past At least 4 in the intermediate pack, I have built them with up to 5.. At least 6 in the forward pack, I have built them with up to 7. Clutch clearance no greater than .045 in the direct and intermediate pack. Trans go Separator plate- This uses both available apply passages in the direct clutch, to increase holding capacity dramatically, without destroying the shift timing capability, which happens when you just leave the center seal out and ream out the stock separator plate to fill the clutch because you left the center seal out, and now have a big chamber to fill, instead of two smaller ones. HD forward clutch hub Full roller rear bearing Complete set of metal thrust washers New boost valve and sleeve 34 element sprag clutch New rear roller clutch Kevlar intermediate band Hi Energy rear band HD Case (Even if your using a aftermarket bell housing) Hi roller count torrington planetary bearings Hi RPM governor Adjustable red stripe modulator Correct valve body modifications- The 1-2 accumulator valve should be sprung properly for the application. Should have full manual control of the trans. Should be using the later valve body with the 3-2 downshift valve. and the trans case should be blasted, so it's as clean and nice as new.. good luck finding that in the "painted trans case" aftermarket world we live in. It's been my experience, that transmissions, like torque converters, have a ridiculous mark up, for what your really getting, when you buy from the big name outfits. See what kind of warrantee they have..
Jim who would you recommend? maybe PATC I have a 72 Lark with currie drop in 9inch with 2.73 the wife and like to drive it around alot:3gears: We have 455 with eddy heads and TA212 cam and 9:1 the current combo wont kill the 2.75 planetary gears,... but I wanted to put on a turbo with 3-4 pounds of boost and take it to the track with my Mickey Thompson ET's My current TH400 has drainback probs and the rear seal or bushing is leaking and I thought we would upgrade, I was looking at $1500-2000 for tranny and $$250-400 for convertor I have thought about PATC as they have this monster 400 Transmissmisson Raptor Level 4 - 400 Mega Raptor Fairbanks TransAction Kit Alto Kevlar Front Band 34 Element Sprag and Drum Tail Housing 4 or 9 Inch Alto RedEagle PowerPacks in all 3 Clutch Sets Heavy-Duty forward drum and hard Input Shaft with oversize splines Hard Forward Clutch Hub $1749.00 Transmission Horse Power Rating 1200+
Might Mouse, Disregard my reply to your PM, where I asked you what the combo was.. I saw this after I replied to that. What do I recommend? Let's start with my Level 2 TH-400..- 925.00 + 175 for the HD case/short shaft core- Total of $1100 With that, you get: As I mentioned, it starts with the HD bellhousing case.. there are different cases out there for sure, and the HD BOP case is among the best of them. I do take the time to not only chemically clean it, but also glass bead it, and then remove all evidence of the bead.. they look just like new, and I leave the spray paint in the can... :rant: Rebuilt, blueprinted pump with new bushing and seal, Sonnax boost valve and sleeve kit, bead blasted and painted semi gloss black.. Trans go 400-1/2 kit installed, and calibrated for your application, this includes the HD intermediate clutch snap ring, as well as the HD direct clutch returns springs, the patented dual direct clutch feed spacer plate, as well as springs for precise tuning of modulator and 1-2 accumulator valve. HD 34 Element Intermediate Sprag clutch Full complement of new HD roller bearings Full complement of bronze thrust washers, replacing the commonly used plastic ones. 71-up center support with the case spacer ring Full metal sealing rings Raybestos "Waffle" clutches, standard 5/3/5 clutch count. (Forward/intermediate/direct) New glass beaded, then hand sanded steel plates Hi Rpm governor for application, plus the balance of the Governor spring/weight kit is included if you wish to fine tune your shift points Adjustable red-stripe modulator High Energy Low/Reverse band, Kevlar Intermediate band Full bead blasting and detailing of the case, covers and bolts- just like brand new.. And topped off with a +1.5 quart semi-deep polished alum pan, with a drain plug. ________ For upgrades for your application: While there are good 2.75 straight cut gear sets available, (stay away from the TCI unit) I don't believe that unless your an NHRA Stock Eliminator racer, you will see enough benefit to compensate for the $459 cost.. Most cars don't really benefit from this gear set, with mid 3 series or higher gears, but with your 2.73 rear gears, you might... but it's nearly a $500 gamble.. so I will let you decide on that one. I am not worried about you breaking it, but I question if your not just going to just be able to smoke the tires that much easier.. the latest trend with the 400 gear sets is to actually go to a higher ratio, there is a very costly 2.10 gear set out there now, to aid racers in high HP cars with traction. I would upgrade to the HP 5 clutch intermediate clutch set, with Kolene steels.. add $55.00 I also would upgrade the direct clutch to the Red Eagle frictions, and Kolene steels, and add 1 extra clutch for a 6 clutch pack. I don't believe this application will required the expensive 7 clutch pack setup. add $75 And I would top it off with the Hughes Extra deep pan- add $90 IN this application, I don't believe your going to break any hard parts, so there is no need for the billet forward hub, or the HD input shafts/forward drum. Total cost w/o the gear set- $1320 w/straight cut 2.75 gear set- $1779.00 For a converter for you, I would build one of my 9.5" STG 1 units for you to use now, cost is $465 After you get the turbo setup installed and worked out, then we could upgrade to a STG 2 unit and reset the stall speed, cost to do that would be $225 There is no one converter that is going to work with and without the turbo setup, so your best to work with what you have now, and change it to match your combo later. Boxing and shipping for the trans, to most lower 48 locations is $275.00 My Level 2 unit also has a full 3 year warrantee.. Converters are lifetime warrantee. Thanks, and I hope that helps JW
Well that looks good to me I shall discuss 2.75 gears with the keeper of the check book:laugh: I will contact you at your trishield performance number next week.
just for the record, That Tranny was built with the good gearset back in 1996 so its been 13-14 YEARS now that I've been pounding on it ... and there were years that I was running slicks, but with about 100hp less than Jim helped me tuck under the hood now. Add to that my baby is no svelte runway model - usual cruise weight with junk inda trunk is well north of 4200# All told I'd guestimate 13 years x 5,000 miles/year = 65,000 miles + 10-20 passes/year + Wayyyyy to many street blasts to even begin to count. If I were to need one today, JW would be the first and only call I'd make. In fact, I have one of his TH400's , fresh and ready to go, sitting under my bench.
I would contact Dennon Behel,in Killen Alabama.He worked for TCI in the past,& has done some work with PTC.He does all of his own work,& I have never had any issues with any of his trannies in any of my cars,or my customer's cars that I have put them into.My 3900lb car goes 10:90's@122,so it is making some power.I am still on his 1st trans that he built me 6 years ago.I have an assortment of his trannies stocked on my shelves,or you can just get one from him.I know I considered doing one with the steeper 1st gear,but I had also seen a few of them,in lesser-power cars,scatter everything apart,plus he suggested not to bother. Basicly,when you are in 1st gear,your trans is spinning about twice the rpm of your motor,then when you shift to 2nd gear,everything has to stop in a split-second & spin the other way.If you stretch the ratios apart more,between 1st & 2nd,this will also increase the rpm difference between the two,& possibly cause some breakage.This is also why some transmission guys will tell you to do your burnouts in 2nd gear.The 1st gear will go quick,then it will stay in 2nd.If you shift it yourself,winding the motor up,bad things "could" happen. Dennon can also explain the different levels of aggressive clutches.Most people throw around the red clutches as your best or only option. NO. There are also blue,green,& black.Each one being more aggressive than the next,but all more aggressive than the reds.He also machines the cases for extra clutches,& use the stronger drum/sprag assemblies.I think I have about $750.00 into one of my trannies from him,& it has lasted longer than some all of my previous trannies,even the $900.00 & $1100.00 ones.I also was able to pick up some mph at the track.I don't have any lightweight aluminum parts in any of mine,as I drive my cars everwhere,but he can do that stuff too.
