"Bosch F5DPOR Side Fire" HELP

[Venator1]

I was told by several auto parts stores that the popular Bosch F5DPOR Side Fires only fit the Audi models below. Why doesn't the 2000 B5 S4 show up on any parts sites as compatible? How many of you use this plug on your B5 S4?

#F5DPOR fits the following vehicles:

AUDI 200 QUATTRO 20-VALVE 1991
AUDI S4 QUATTRO 1992
AUDI S4 QUATTRO 2.2 (1993 - 1994)
AUDI S6 1996
AUDI S6 AVANT 1996
AUDI S6 QUATTRO 2.2 1995

[exorcet]

they're just not listed as an 'oem equivalent' replacement... many people run them and they work great. if you are stock though, just run stock plugs (at least stock heat range).

[Daft]

The heat range is 2 ranges colder and thus it doesn't match the heat range that a stock S4 would use. Since a Stage 3 car isn't stock, stock heat range isn't a requirement.

[andru1313]

Are they ok to run on STG 2?

[Daft]

I suppose you could but, the added heat and cylinder pressures won't be there to make them as necessary as a Stage 3 car.

[andru1313]

I just got some was going to install over the weekend.. should i just go with OEM instead? I was told that these are that much better even for STG 2

[quickaudi]

The heat range is 2 ranges colder and thus it doesn't match the heat range that a stock S4 would use.

probably more like just one heat range colder

[Venator1]

My S4 is Giac Chipped. Does that make my car a stage 2? Is it still worth using the side fires?

[joules]

My S4 is Giac Chipped. Does that make my car a stage 2? Is it still worth using the side fires?

Yes, it is Stage 2, and no, the side fire Bosch's are not a benefit to you. Even at Stage 3 +, $2.xx per plug Autolites from NAPA work fine for me. I use the F5DPOR's only in warm weather, and only because I paid $90 for the set...

[Daft]

probably more like just one heat range colder

The NGK and Bosch heat ranges are not lined up in numerical value.

The stock NGK plug in the 2.7T "PFR6Q" is a 6 heat range in NGK's numbering system.

If you were to look up a stock equivalent plug in Bosch's part numbers, it would be a "7" since Bosch uses a different scale.

The Bosch F5DP0R is a "5" heat range and thus it is 2 heat ranges lower than stock.

You would also be running 2 heat ranges lower by using the NGK BKR8E-IX iridium plugs.

[AudiSportB5S4]

My S4 is Giac Chipped. Does that make my car a stage 2? Is it still worth using the side fires?

Stage 2 = Tuning + Catback exhaust...

[SLC_S4]

My S4 is Giac Chipped. Does that make my car a stage 2? Is it still worth using the side fires?

You're stage 1, and no, the F5DPORs will not be a benefit for you.

[joules]

You're stage 1, and no, the F5DPORs will not be a benefit for you.

Well, I learned something just now--I thought that Stage 1 was getting a B5 S4 to start and run in a semi-reliable fashion...

[BITRBO]

Well, I learned something just now--I thought that Stage 1 was getting a B5 S4 to start and run in a semi-reliable fashion...

No, that's "Step 1". "Step 2" is realizing the you have a problem...

I'm running the side-fires now to see if they help my misfires, but I think I have bigger issues Hopefully if I get those resolved I can see if they help any.

But I think that running this car hard (which I have been known to do) in this SFL summer heat, I would probably see some sort of benefit over say someone up north... IDK, that's just how I justified the price to myself anyways (haven't gotten past "Step 2" yet )

[Venator1]

I can get the F5DPOR for $13 each. Still cheaper then the NGK OEM. You think it is worth it now or is it basically the same shit for a Stage 1+ and I will feel no difference?

[Boosted-S4]

Im also in need to buy plugs and i was told by a friend that i should get the side fires..will there be a problem??

[Maverick]

F5DP0R can be put into many applications but sometimes not recommended for use due to its colder heat range.
it works on Audi's 3.0 engines(AVK) as well

[Maverick]

clicky, cheapest price ever!!!

[YZracer]

I run the Bosch platinum sidefires from JHM. They run great.

[dak360rt]

Bosch side fires may have no "benefit" to a non Stg 3 car, but would they have a consequence to a Stg 1 or Stg 2 car?

[ThirdStrike]

i dont use bosch plugs.. but easy reference for ngk:
stock- bk6reix
chipped-bk6reix or bk7reix
stage 3-bk7reix or bk8reix
these are all iridium plugs. copper or plat can be used too but the heat ranges should stay 6 for stock, 6 or 7 for chipped, and 7 or 8 for stage 3

i use the 8 heat range plugs on my car but i had to close the gap from .28 to .25 or it would misfire too much. but up top these plugs really perform in hot temp climate

[Bart]

Stage >3 = stock plugs
Stage <3 = side fires

Why spend over $80 on plugs if you're not going to benefit from them?

[wheel366]

Is there anyone who runs these in a Stage2+ car? I need plugs in a couple thousand miles and am not sure what to get.

[Boosted-S4]

what other plugs can be considered to be good on stock and stage 2 S4's?
please mention name and part or model number

[GunSupplier]

Stage >3 = stock plugs
Stage <3 = side fires

If you read that normally from left to right it says: "Stage [greater than 3] equals stock plugs, Stage [less than 3] equals side fires."

I don't think that's what you meant.

/end being a jackass.

[Leester]

If you read that normally from left to right it says: "Stage [greater than 3] equals stock plugs, Stage [less than 3] equals side fires."

I don't think that's what you meant.

/end being a jackass.

Gun Supplier is exactly right about the above info.

On another note, you will be perfectly fine using those plugs, they will work like a charm, stock or not.

[megafreakindeth]

with the side fires you will have overall better combustion efficiency. with obd2 the computer will adjust the timing and feuling because of this. also its harder to blow out the flame with a side fire plug than a regular style and indexing the plug is less-nessesary. the full benifits wont be realized until you create a really turbulent combustion chamber, hence why theyre used with bigger turbo cars with huge injectors. there will be overall benifits but you wont notice them unless you did back to back comparisons on two cars for many miles and then looked at the overall condition of the combustion chamber and other factors and somehow factored out all of the numerous problems these cars will go through during that time.

aside from bigger turbos you can also get colder plugs if you upgrade the ignition system with a higher output, or with water injection. the ign system increases the heat on the plug so going colder will prolong their life and water injection is similar to advancing the timing alot which in turn induces more wear on the plug.

[ThirdStrike]

LOL WHAT^?
stop speculating.. please.

[awdbiturbo]

The heat range is 2 ranges colder and thus it doesn't match the heat range that a stock S4 would use. Since a Stage 3 car isn't stock, stock heat range isn't a requirement.

ding ding what he said

[s42k5b]

Im also in need to buy plugs and i was told by a friend that i should get the side fires..will there be a problem??

No Probems. I have been running them for the past 6k miles on my stage 1 Giac chipped s4.

[OneSickSedan]

I have GIAC and piggies and am running F5DPOR's with no problems.

[dannyn424]

I ran them felt fine when i was stage 2 ....... do it so u wont have to later bosch sidefires............ftw

[quickaudi]

The NGK and Bosch heat ranges are not lined up in numerical value.

The stock NGK plug in the 2.7T "PFR6Q" is a 6 heat range in NGK's numbering system.

If you were to look up a stock equivalent plug in Bosch's part numbers, it would be a "7" since Bosch uses a different scale.

The Bosch F5DP0R is a "5" heat range and thus it is 2 heat ranges lower than stock.

You would also be running 2 heat ranges lower by using the NGK BKR8E-IX iridium plugs.

quoted to prove mods can be wrong

seriously? search this http://www.clubplug.net/bosch_ngk.html

or this http://www.spark-plugs.co.uk/pages/t...chd6b-w4e2.htm

find F5DPOR or F5DP0R
note that it crosses to NGK's PFR7B, which is only 1 range colder than stock (stock is PFR6Q)

FYI, there is no Bosch stock equivalent for a 2.7t plug - they don't make one, and I can back that up with several phone calls to several Bosch reps. NGK makes the only stock plug for our cars.
At any rate, both start at "6", but NGK goes up and Bosch goes down for heat ranges.

therefore, the f5DP0r plugs are only 1 range colder than stock plugs.

[drewski]

quoted to prove mods can be wrong

seriously? search this http://www.clubplug.net/bosch_ngk.html

or this http://www.spark-plugs.co.uk/pages/t...chd6b-w4e2.htm

find F5DPOR or F5DP0R
note that it crosses to NGK's PFR7B, which is only 1 range colder than stock (stock is PFR6Q)

FYI, there is no Bosch stock equivalent for a 2.7t plug - they don't make one, and I can back that up with several phone calls to several Bosch reps. NGK makes the only stock plug for our cars.
At any rate, both start at "6", but NGK goes up and Bosch goes down for heat ranges.

therefore, the f5DP0r plugs are only 1 range colder than stock plugs.

*golf clap*