ghetdjc320 Posted February 6 Author Share Posted February 6 14 minutes ago, Comanche SS said: If you can rotate or replace that throttle body with a less intrusive style one, you can spin the PS resi, and run a 4'' intake tube around it like I did in my MJ I had thought about flipping the TB but it’s a 3 bolt. My plan is to build similar to the design @USN_JeepMJ used but with carbon fiber tubing for less heat absorption. Also, after cleaning out that ls6 intake manifold, I believe a catch can is in order Link to comment Share on other sites More sharing options...
Comanche SS Posted February 6 Share Posted February 6 4 minutes ago, ghetdjc320 said: I had thought about flipping the TB but it’s a 3 bolt. My plan is to build similar to the design @USN_JeepMJ used but with carbon fiber tubing for less heat absorption. Also, after cleaning out that ls6 intake manifold, I believe a catch can is in order Yeah, along the same lines as what I followed/did. I too have been looking into the benefits of catch cans, all three of my LS rigs need them lol Link to comment Share on other sites More sharing options...
ghetdjc320 Posted February 6 Author Share Posted February 6 4 minutes ago, Comanche SS said: Yeah, along the same lines as what I followed/did. I too have been looking into the benefits of catch cans, all three of my LS rigs need them lol I was surprised how much oil accumulates in the intake. I always run a catch can on my watercraft but they are supercharged. Hadn’t seen a NA engine need one. Looking at a nice clean option if I can find one. Chase bays has a nice kit as does improved racing Link to comment Share on other sites More sharing options...
ghetdjc320 Posted February 6 Author Share Posted February 6 Just went out to double check and I have right at 4” of clearance at the pinch point between the ps reservoir and the fan shroud. I’m thinking the 3.5 will fit perfectly with a bit of clearance all around Link to comment Share on other sites More sharing options...
Comanche SS Posted February 6 Share Posted February 6 11 hours ago, ghetdjc320 said: Just went out to double check and I have right at 4” of clearance at the pinch point between the ps reservoir and the fan shroud. I’m thinking the 3.5 will fit perfectly with a bit of clearance all around Will you have to scale the MAF sensor to account for that size of tube? I know with my setup, I had a choice to run 3'' or 4'' and the MAF sensor had a reducer to avoid having to scale the MAF in the ECU...not sure how the Gen 3 MAF sensors work though. Mine ran like crap with the 3'' reducer, so I opened it up to a true 4'' tube all the way thru and the tune mustve been setup that way, because it runs flawless now with 4''....The size of the tube really changed how it ran more than I thought it would. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted February 6 Author Share Posted February 6 6 hours ago, Comanche SS said: Will you have to scale the MAF sensor to account for that size of tube? I know with my setup, I had a choice to run 3'' or 4'' and the MAF sensor had a reducer to avoid having to scale the MAF in the ECU...not sure how the Gen 3 MAF sensors work though. Mine ran like crap with the 3'' reducer, so I opened it up to a true 4'' tube all the way thru and the tune mustve been setup that way, because it runs flawless now with 4''....The size of the tube really changed how it ran more than I thought it would. This particular maf that came with my c5 engine is made specifically for 3.5" tube afaik. The c5 has the over the radiator oval design on the intake that necks back to a 3.5" tubing then the maf then the filter. I'd love to do something very custom here but the 3.5" tubing looks to be the best bet overall. I am thinking along the lines of a custom airbox though or perhaps even custom intake routing. I'll have to take a closer look at it and see what may work. I do like though that there is plenty of room around the engine for airflow. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted February 7 Author Share Posted February 7 Generated a 3D file for the air intake area Also took some measurement pictures 1741998033_Airintake.zip Link to comment Share on other sites More sharing options...
ghetdjc320 Posted February 13 Author Share Posted February 13 Slight mods to the ps reservoir bracket to gain some additional clearance. Lowered the reservoir by 3/8" and moved it back towards the throttle body by 5/16". also shaved off 3/16 from the outer edge. May not seem like much but gave me 5/8 more clearance overall between the fans and the reservoir. I also dug up the maf sensor and can confirm that it is for 3.5" tubing. The OD measures out to 3.6". To reduce turbulence and get the best readings, I'm going to mount the MAF about 2" back from the filter then try to keep a pretty straight shot of at least 12" back to the TB where it will use a 3.5-4" bending reducer. The goal is to use plastic or carbon fiber tubing to reduce heat absorption in the tub itself. Also made a small wire frame for the intake area and will try to fab some sort of heat shield and duct. I did look at doing the camaro -2 spacing on the puller to use the holley low mount setup. But I would have lost almost and in of clearance between the radiator and belt drive. And, all the kits that mount the alternator down low on the drivers side of the block tend to use the small case style which I don't want to run. The corvette reservoir location is also quite ideal from the standpoint of fluid delivery to the PS pump. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted February 16 Author Share Posted February 16 Modified the SFR crossmember/skid for the swap. The shorter length of the drivetrain does make it tricky to get some items lined up properly. But with enough modification and adjustments it works out nicely. On the sfr crossmember, I removed a section for the transmission mount, then I cut a custom piece from 1/4” plate and welded that in. Then I mocked it up and drilled out the mounting holes for the Novak tranny mount. Made a pair of flag nuts to make it easier to service later. Had to add a nutsert to the MJ frame hole for the factory tcase skid. The sfr unit uses that same factory mounting position. Everything aligned nicely. Need to add a 1/4” spacer to the transmission mount but it’s otherwise all finished. Started on engine wiring as well and got about a third of the way through. I’m keeping the ECU, TAC module, fuse block and relays all under the dash inside the cab. The engine bay looks much cleaner this way. Routing cabling and planning it all out takes time but is very rewarding. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted Sunday at 02:51 PM Author Share Posted Sunday at 02:51 PM Interesting tidbit of info, the Corvette LS programming in the ecu’s monitor the oil pressure in the data stream and use a nice 5v reference sensor. So I’ll keep the corvettes oil pressure sensor connected and run the Jeep gauge sender off of the oil cooler ports using an adapter. I don’t believe the corvette programming actually uses the data for tuning purposes but I’d like to leave it there for reference and perhaps data logging Link to comment Share on other sites More sharing options...
ghetdjc320 Posted Monday at 04:59 AM Author Share Posted Monday at 04:59 AM Was able to source a NOS 04 LS6 valley cover which has the pcv built into the cover itself. This has much less oil exposure and keeps a cleaner intake. Also eliminates all the pcv hoses that circle the manifold. May do a catch can a well but perhaps down the road as it’s a simple bolt on. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now