Magnuson Supercharger Clean Up

[bo9roadking]

Received an email from Magnuson today. Apparently their test jeep for tunes was stock. They are putting a lift and larger tires on it to do further tune testing. I was asked to check back with them in a couple of weeks if I don't hear back from them first.

Going to take my jeep out for some rock crawling this weekend for the first time since the SC was installed. My jeep has been on the road a bit driving around town and on the highway, but it hasn't been driven much because I'm waiting on a better tune that is more friendly with the transmission. I'll post back on how the SC does crawling.

[Rexx19]

what did the stainless hoses cost? and the bender?

how do you cut them? Metal blade on a sawzall?

[gbaumann]

what did the stainless hoses cost? and the bender?

how do you cut them? Metal blade on a sawzall?

Stainless tubing was about 40.00. Bender was expensive - around 200.00.

[gbaumann]

cut the tubing with tubing cutter - plumbing tool.

[bo9roadking]

Contacted Magnuson this week about a new tune. I was originally told that a new tune would be available in about two weeks after their test jeep got a lift and larger tires installed. I don't know if that was two weeks from my email or two weeks after the jeep had the larger tires installed. Since more than two weeks have passed, I emailed Magnuson for an update. Magnuson's response was that everyone is at SEMA and nobody is available to work on the tune right now. I understand Magnuson going to SEMA, but I don't understand why the Diablo tuner would need to be at SEMA. Why can't he/she work on the tune unless Magnuson took their test jeep to the show.

I'm starting to get a little frustrated with this whole affair. Am I wrong to think that when a manufacturer advertises something, that it has been fully tested and should work? I see videos of people's jeeps with a Magnuson installed that are burning rubber to demonstrate the power, but when I ask a question about problems, I don't get a response. Mine will burn rubber in a parking lot, but the daily driving is something else. Even Magnuson had a jeep on a dyno that was posted on their Facebook page. They were going to announce the hp/tq numbers and post the dyno chart. I commented on the post that I'm interested in the results and asked if the transmission shift issues would be resolved, but then the entire post disappeared. Nothing was posted about the dyno.

[Gunner]

Well that sucks.

[FLIPmeOVER]

busch leauge.

Id ask for a date to receive a corrected tune, or a refund. these things are too expensive to play around.

[Gunner]

Still no new tune? I am interested in what they are going to do about this issue.

[bo9roadking]

Emailed Magnuson last week and got a new tune. Put about 200 miles on it. Engine seems to be a little peppier, but the auto transmission is still having the same shift issues.

Since I can manually upshift if I don't want to run higher rpms around town, that seems to be a solution for now. My main issue that I can't work around is highway driving between 65-70 mph. Unless I'm on level ground, my transmission won't stay in overdrive. It likes to downshift on any incline and hold 4th gear for an extended amount of time unless I manually upshift. There are some places on my commute to work that I leave it in 4th gear and deal with the higher rpms because manually upshifting to overdrive only results in the transmission dropping back down to 4th gear on its own. If I were to manually upshift again, it would yo-yo back down to 4th again on its own.

I like the additional power, but paying premium fuel prices, losing about 2 mpg, and an auto transmission that can't make up its mind when to shift is frustrating. Magnuson gave me the impression that Diablo was trying to resolve the transmission issue, but they have no idea when/if it will get resolved. If you don't drive your Jeep on the highway a lot, this is a great setup for the money. It really shines when I need the power while rock crawling. If you drive on the highway, you will have to live with only partial use of overdrive, higher rpms, more drivetrain wear because of the higher rpms, and less than stellar mileage because of the higher rpms. Would I do it again knowing what I know now? No. I'd either wait until this gets resolved or save your money for a V8 swap.