bmuir

I have a TCS 2600 converter (9.5 inch pump cover, 11 inch clutch cover) for sale for $325 obo. I'm going back to a more stock style circle D stall, due to the amount of driving in town I have to do now and being a little too loose for me. Its been in my truck for about 10 000 miles, and was gone though and re-stalled last year from the TCS2800 down to 2600 by TCS Arizona. Will ship to Canada or USA, if USA can ship out of Washington to save cross border costs.

Is it the old or new style? Can you send me a picture please?

Looking to put a second heat exchanger into my system, already have the one that came with my radix mounted below with the Joe Gibbs brackets and some fans on it, but have the stock brackets so thought id put a second one up top to increase the fluid capacity and cooling. Anyone upgraded to a bigger unit and have one sitting around, or one that never got installed? Let me know!

Thanks Jarrod, I had forgotten I had posted over here about it too.

I have read though that post, and that makes sense as rpms increase and fueling runs out, but this is when i punch it off a light and it is dead, nothing there, no fuel pressure. I picked up a 255 in tank today, so when the tank runs dry ill install it and see...

That's what i'm beginning to think, although it runs semi-decent with just the in-tank. Maybe the walbro is pulling so hard it overwelms the in-tank on the initial stab of the gas? I'm going to drop the tank anyways at this point to check the pick-up tube. What should I put in, a 190 in-tank or a 255? The in-line is only a 190 so would a 255 be OK in tank with the inline? Or do i just do the 255 in-tank and take out the 190 in-line?

some of you may have seen my post over on PT.net but here it is again, see if there are more ideas over here...thanks for reading guys, and any suggestions you can give are much appreciated! I just installed a Radix on my 01 Sierra C3 (LQ4) with a 2.9 inch pulley and full bolt ons, with bosch green top injectors and have been trying to figure out some issues i've been getting with the fuel trims and pressure. I did have a slightly contaminated filter so i put a new one in. I've checked for vacuum/boost leaks via pressurizing the system, and using carb cleaner and watching my STFT's spraying my injectors and have found no issues for leaking. Also have swapped the FPR three times (one that came with the radix, stock one, back to the one that came with the radix) and check the o-ring seating as i know that is a common problem. The other day, after running fine,with slightly lean fuel trims the truck started to bog and die out if i tried to launch or give more than 50% throttle. I checked the fuel pressure and got about 53psi at idle, and 65ish under boost while easing into the throttle slowly. If i really stand on it the pressure drops tons...ok so there's the problem... Basically I isolated it down to a bad in tank or in line fuel pump. I have the factory in tank pump as well as an inline walbro190 (from magnuson) right after my fuel filter. Both are under a month old, under 1000 miles, and when i replaced the in-tank, i replaced the entire bucket and sender that came as one unit. I can hear both pumps running if I crawl under the truck, and if i pull the fuse on the in-line the tank pump keeps the truck running. I took the inline out and went for a drive monitoring my wideband and fuel pressure. With just the factory pump it keeps up the pressure while launching and slowly bleeds off,going lean in higher rpm as expected...no jerking though and not erratic dip in pressure, just a slight drop of before i backed out of it. Figuring the Walbro's in-line bad, I flow tested it with just over 2 gallons of gas, timing the amount to flow and it seems to pump the proper amount if you do the conversion from 190litres per hour. I figured maybe when the it was pressurized it failed? Called maggie and they sent me a new pump assembly, and installed it but have the same issues. So chances of two bad pumps..very unlikely. I also though i was supposed to get a 255lph in line, but both have been 190's, is that correct? I moved on and rewired the entire in-line electrical system, swapped relays, grounded and took power from different place, still the same issues. I even hooked power 2 wires up to the pump in-line, ran it into the truck and had a friend monitor the voltage while i drove and got on it. The truck sputtered again like usual, but no voltage drop....so now I assumed the inline is fine. As of now I am waiting for my tank to drain (sure doesnt take long with the radix and a heavy foot) so I can drop it and check the electrical at the in-tank, as well as pull the in-tank pump assembly out and test it. Ive heard of the corrurgated pick-up tube from the pump to the top of the tank cracking or spliting, and ill check the sock too for contamination. These both new, but who knows! If the in-tank is weak would this be emphasized when the inline is in place? If i was to shut the in-tank of will the walbro pull though it? Has anyone seen anything like this, or have any suggestions as to what I may be missing, ill try anything really at this point!!! If you got though this long winded post so far, thanks for reading the entire post LOL!

Thanks guys, looks like i'll be putting it on the drivers side as close to the header as possible...not all of us can just write are own program to convert the delay like you Mr. P.

I'm about to install a wideband bung in my exhaust and am wondering where the best place to measure will be. I have no cats, so anywhere down stream should work. Do I want to monitor the drivers side bank as I have read that 5 and 7 seem to go lean more than the others, or do I want it after the Y which will probably be about 4-5 feet downstream monitoring both side...but maybe not accurately if 5 and 7 are going lean and the other side is rich I may not notice? Any input would be great! -Brian

Thanks a lot, Ill look into those injectors when i do the cam.

Thanks guys for the help. Looks like i wont be getting the one I had found, the guy sold it with his motor and transmission as a package deal instead...o well there will be others, ill just keep looking. Zippy, I have Pacesetter LT's with ORY, Corsa Touring, CAI and Efans as far as bolt ons. A cam will be in the plans after I get a blower. Without the cam, what pulley can I safely run without maxing out my injectors? I will put a wide band in and watch my fueling for sure, but just wondered what you have seen? Can I increase my fuel pressure with a regulator to get more out of the 42lb'ers that come with it? caddy03pimpin, thanks for the offers ill keep you in mind if I need those parts when i find a blower! ..back to searching for a Maggie.

Ill look into the Speartech harness, thanks! Will the truck style inlet tube from Magnuson work with my Outlaw intake? If I do pulley down I will be going with bigger injectors. I don't like the idea of meth really either, being parked in a garage and under the house...i would rather just have the injectors do the fueling job, although i know there are other benefits to meth.

Hey guys, Ive been looking around for a used radix and found one on Performancetrucks.net that a guy is selling off his 06 Hummer. Just wondering if it will work on my 2OO1 Sierra C3 with a LQ4? I know i would have to change the fuel to return style, but are there other differences that would make this not a direct bolt on? He also has the corvette 90mm throttle body, 90mm Jtube and the X link to allow the use of the bigger TB. Will there be gains from the bigger TB, or is it unnessarry with the smaller MP112 blower? I will be installing a smaller pulley too eventually and at that point probably needing bigger injectors. Also, anyone know what Magnuson charges to go through the head unit and check everything out? What sould i get refreshed or looked at, if anything at all. It has 46k miles. Thanks, -Brian

Altitude is pretty much sea level. Thanks for all the replies guys. He seems to be set on the 1900, as its cheaper and he will leave it relativ ely stock other than the blower. The real thing we are concerned with was the trans, but it seems like it wont be that big an issue. Are there gunna be upgrades made available for the 6 speed anytime soon, anyone hear anything? So who have all you guys bought your maggie's from?