 |
10-05-2007, 09:04 AM
|
#1
|
|
Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: Jul 2002
Location: Camarillo, CA
Posts: 602
|
Way back in the beginning of the UltraPower discussion, I recall Mike B stating that a stock 8.1L on the dyno will have the exhaust manifold glowing red. Seems to me that this is why the plug wires tend to burn up on these engines.
Here's my questions open for discussion:
1) How much, if any, will the UltraPower ECM upgrade reduce the manifold temperature?
2) Is it a case of the stock engine operating with a rich fuel mixture and too much fuel burning in the exhaust manifold?
3) If UltraPower leans out the fuel under certain load/throttle positions, shouldn't there be a noticeable deduction in manifold temperature?
I think Mike B and the Brazel's Boys should run some controlled before/after manifold temp tests on the dyno to see if there is a significant reduction in temperatures. If there is a real reduction this would be another BIG selling point for UltraPower and a benefit for the folks burning up plug wires.
My personal experience has been 2 episodes of burnt plug wires in the 1st 11,000 miles. Then I had the vent kit installed and shortly after that I installed UltraPower, Taylor wires, and CAI. I have 26,800 miles on it now with no problems. Running at 26,000 gvw, I have pulled many of the long steep grades here in the West and the combination of upgrades is working excellent for me.
I would sure like to see some dyno testing results!!!!
Happy Trails,
Duner
|
|
|
|
| |
|
 |
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
10-05-2007, 09:04 AM
|
#2
|
|
Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: Jul 2002
Location: Camarillo, CA
Posts: 602
|
Way back in the beginning of the UltraPower discussion, I recall Mike B stating that a stock 8.1L on the dyno will have the exhaust manifold glowing red. Seems to me that this is why the plug wires tend to burn up on these engines.
Here's my questions open for discussion:
1) How much, if any, will the UltraPower ECM upgrade reduce the manifold temperature?
2) Is it a case of the stock engine operating with a rich fuel mixture and too much fuel burning in the exhaust manifold?
3) If UltraPower leans out the fuel under certain load/throttle positions, shouldn't there be a noticeable deduction in manifold temperature?
I think Mike B and the Brazel's Boys should run some controlled before/after manifold temp tests on the dyno to see if there is a significant reduction in temperatures. If there is a real reduction this would be another BIG selling point for UltraPower and a benefit for the folks burning up plug wires.
My personal experience has been 2 episodes of burnt plug wires in the 1st 11,000 miles. Then I had the vent kit installed and shortly after that I installed UltraPower, Taylor wires, and CAI. I have 26,800 miles on it now with no problems. Running at 26,000 gvw, I have pulled many of the long steep grades here in the West and the combination of upgrades is working excellent for me.
I would sure like to see some dyno testing results!!!!
Happy Trails,
Duner
|
|
|
|
| |
|
10-05-2007, 11:37 AM
|
#3
|
|
Senior Member
Official iRV2 Sponsor
Join Date: Jul 2005
Location: CENTRALIA, WA
Posts: 1,396
|
We have only had one coach(P32 Trek Owned by JestMe13)That still burned a wire after programming & Taylor wires.I beleive with the fuel ratio's where they need to be,the plug wire issue is 99.88% solved! We have heard of other dealer's replacing the stock wires with Taylor's and still burning them.
__________________
Chris Leach
Brazel's RV Performance
|
|
|
|
| |
|
10-06-2007, 09:12 AM
|
#4
|
|
Senior Member
Commercial Member
Newmar Owners Club Texas Boomers Club
Join Date: Feb 2003
Location: Jarrell, TX 76537
Posts: 3,792
|
In addition to what Mike has stated, air flow is very key to plug wire survival. The design of some front caps do not allow a lot air flow. Thus Workhorse has designed a kit to direct air to the rear 2 cylinders on each of the engine.
__________________
Dale/aka-Oemy Oemy's UltraPower Performance
Ultra Power'd/Ultra Trac'd/Magnum Plug Wires/AC 41-101's/DIY CAI/Koni's
2004 Mountain Aire MACA 3651-1997 Honda CRV - Toad
|
|
|
|
| |
|
 |
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|

»
Recent Discussions

»
Upcoming Rallies
No events scheduled in the next 365 days.
|
»
iRV2 on facebook
|