| We are proud to announce that On3 Performance have designed two new turbo systems for the 1998 – 2002 F-body LSx cars. This kit in particular is designed to be used with the BMR turbo Kmember and will retain the A/C system.
The A/C LS1 turbo system is one of the most complete kits on the market today for these cars. You will not have to track down manifolds from a truck, turbo from another place and make exhaust to connect your downpipe to the existing cat-back. This system has a very unique, proprietary passenger side cast On 3 Performance V-banded manifold. That really one main item that seperates this kit from any other design on the market. As for the driverside manifold, that will retain the 3 bolt mounting flange for the current production design and is also cast.
This turbo system will contain everything you need on the hotside from manifolds to your turbo. The y-pipe they built off each manifold is 2.5” and merges in the middle and keeps the radiator in the stock location. Each kit will include the On 3 Performance 70mm turbocharger. This is the same turbocharger that’s been on their shop 2002 Mustang GT since 2008 and has been daily driven since then. They have put over 2x,000 miles on that car and the turbo has proven the test of time. They use this turbo in almost all of their kits and will have no problem supporting up to around 6-650rwhp. They also have the On 3 Performance 76mm turbocharger available for this kit as well and you can find it in the optional items at the bottom of the page(available in ceramic ball bearing and journal bearing).
Coming out of the turbo, we supply you a 3 piece downpipe that routes ALL THE WAY BACK to the stock catback. That way you are able to keep the exhaust note manageable and not drawl too much attention if you don’t want. Although it can be ran open downpipe as well very easily, most of our customers opt to run a full exhaust system. Some say turbo cars are quite but under partial or full throttle, an open downpipe it somewhat obnoxious.
Moving on to the cold side of the kit, they have built a 2.5” aluminum charge pipe that feeds the intercooler and coming out of the intercooler to the throttle body transitions into 3”. Each kit comes with the crossflow 3” On 3 Performance bar and plate intercooler. We also have a 4” core that is available as well and listed under our optional items if you plan on maxing out your shortblock or if you have a built engine and going for higher boost levels. The 5 ply On 3 Performance silicone couplers connect each intercooler pipe together and t-bolt clamps ensure maximum clamping force and prevent any intercooler pipes from blowing. Each pipe is bead rolled on both ends to add extra protection from losing a pipe under boost. All intercooler piping is made from 6061 aluminum to help dissipate heat and also keep weight down over using stainless. Lastly, this kit is designed without a maf provision, most all builds we see go speed density for tuning so if you plan on running a maf, you will need to adapt that on your own.
They weighted out their options with this kit and decided to keep the radiator in the stock location. They were able to keep the turbo higher mounted than the oil pan but the drain has pretty much a horizontal transistion back into the pan which can back up oil to the turbocharger. This in turn can make oil seep into the exhaust or compressor wheel and cause smoke and potentially have catastrauphic failure to the turbocharger. We do not include any warranty on the turbocharger unless you purchase the optional On 3 oil scavenge pump listed below in the optional items list. This assists with the draining process of the turbo and keeps flow where it needs to be. An added benefit to running the pump, you can tap the oil filler cap and pump the oil up and return through that port. Avoiding the need to drill and tap the oil pan.
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