RE: Bosch Platinum +4 Spark Plugs Good or Bad?
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 6/2/2007 6:39:02 AM
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Disco Mike
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This is a major evap leak that is knocking your power down not a leaking gas cap.
Have you resolved the problem and got the old engine up and pulling know?
Mike
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 11/26/2007 1:40:14 PM
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meineke495
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well i have plenty of experience with Bosch...first off bosch isnt original equipment in any vehicle on the planet...you should put back into your vehicle what it was designed to run on...champions i belive just make sure they are double plats. Bosch has caused me nothing but problems in my 10 years of turning a wrench, and you`re right you are not going to notice anything positive with those, i suggest champion double plats or NGK double Plats...and Borg-Warner Custom Fit Wires...give it a try in any car...Fords= autolite plugs Honda= NGK chrysler= champion and so on and so on...think about it, your car was designed to run at its peak performance with Champion plugs...why not put those back in it?
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 11/27/2007 12:01:18 PM
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Disco Mike
Posts: 9298
Joined: 4/27/2006
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Well, you are wrong, Bosch is a standard plug for many European vehicles like Mercedes, BMW and others.
Also, just to set the record straight, our Rover engines, when first designed came with AC Delco plugs, then Rover switched them to Champions.
If you are wanting to talk about failures, then we should talk about the poor quality of the B/W p;ug wires which don't hold up to our engines heat.
_____________________________
Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 3/5/2008 6:20:15 PM
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greg409
Posts: 116
Joined: 7/29/2006
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WOOOO!
I've got Bosch +4 in my RR 4.0se for some time now (last summer) runs sweet (ran good w/ old champs tho')
I've had some $5 ea autolites in my 4.0 disco for maybe a year & it runs great too!
I'm not brand loyal, but I second Mike on VERY GOOD plug wires - these babies can make heat!!
(Not enough room for my resume since 1959) - put cheap parts on cheap cars
_____________________________
"Don't give up, it's only a machine"
'96 RR 4.0se 160K nice
"97 D1 Se7 105K nicer
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 3/6/2008 5:39:51 AM
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Disco Mike
Posts: 9298
Joined: 4/27/2006
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quote:
ORIGINAL: LandRoverSE
Now that I got my bosch plugs in I had to replace my o2 Sensors. But it still doesn't feel like I'm getting all my power out of my Rover. When I stomp it to pass or get up to any speed it doesn't wanna go over 3500rpm's unless I use sport mode. It wasn't like that before I had bad wires. But I didn't notice a difference in regular mode and sport mode until I got my new plugs and wires. Any ideas on what it could be Mike???
Thumbnail Image
Are you still fighting your power issues and getting over 3500 RPM's, if so give me a shout sometime and lets talk about it.
_____________________________
Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 5/21/2008 9:09:55 AM
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unstable
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imho, I am a little skeptical when it comes to plugs and performance anyhow. First off, I don't put 100% faith in something because it was OEM. I've seen many situations where the original manufacturer went with a cheap-crappy design because it saved them money in the long run. Going off of this same though, who is to say that the spark plugs are any different?
Next, the internal combustion engine is basically controlled explosions. The bigger the bang, the more power. If I pour 1 OZ of gasoline on the ground and light it with a match...and then I pour 1 OZ of gasoline on the ground and light it with a lighter and do the same using an Oxy/Acetylene torch...which one is going to generate a bigger "BOOM"?
I'd say they are all going to be about the same. Gas is gas, it's going to ignite. The only issue is if your plugs are fouling and they don't produce enough of a spark to ignite the fuel/oxygen mixture...but I don't see how having two hundred gazillion volts going to a super Bosch + 9000 plug is going to produce any extra horsepower. You're going to reach a point where the mixture is ignited and that's that.
From there it becomes a matter of increasing oxygen and fuel, increasing compression, increasing stroke and bore.
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 5/21/2008 6:30:38 PM
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Disco Mike
Posts: 9298
Joined: 4/27/2006
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The plugs and wires haven't caused this code.
_____________________________
Mike
Retired service manager. Member of the Solihull Society, NCLR club,past member of the SCLR club and Santa Barbara 4 Wheelers.
99 D2, 3" lift, lockers, H.D. axles, 4:11 gears, Custom front and rear bumpers, Warn winch, HID lights and an Engel 45.
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