Best spark plugs. Best injectors

[tapA4]

I'm just curious as to which spark plugs would be most recommended, and how often to change them.
I'm also planning on doing the APR stage 1 chip. Should I do injectors along with the chip, or just the chip since I don't have upgraded exhaust (I've heard to only do injectors if you have upgraded exhaust, so I'm just confirming that?). If I can do injectors with the chip, which type would be recommended as well. Should I just do the APR injectors that they sell along with the chip or are there other injectors that would be suggested.

Thanks!

[onceover]

ngk bkr6e if you want to change them every 5k

ngk bkr6eix if you want to change them every 30k.

the copper ones wont last as long but will perform slightly better. opposite for the iridium ones.

for the stage 1+ chip, youll need bosch 386cc (TT225) injectors. I think ecs tuning is having a sale on them right now. You can run a 1+ file without aftermarket exhaust, but youll see better gains with one

[AudiNFS]

Thanks for bringing up this thread. Not to thread jack, but I have the same question. I have a '98 A4 1.8T Quattro AEB and got a GIAC chip. Does anyone know what spark plugs are recommended and possibly any that I wouldn't have to gap? Will I NEED upgraded fuel injectors?

[onceover]

^ Same answer. The NGK's come pregrapped at 0.032" which is what you want.

With a chip you might consider going down to a colder plug, so look into bkr7e's.

Heres a good read: http://www.audigeeks.com/forums/index.php?topic=56.0

[AudiNFS]

^ Same answer. The NGK's come pregrapped at 0.032" which is what you want.

With a chip you might consider going down to a colder plug, so look into bkr7e's

Thanks for the help What would the advantages of a colder plug be? Also, do the bkr7e's come pregapped at .032" as well?

[onceover]

Read the link I added to my post. Yes, they will also come gapped to .032.

Heres a link about gapping plugs: http://www.audigeeks.com/forums/inde...6&topic=1129.0

[AudiNFS]

Alright thank you.

[b6onboost]

Generally people pushing higher boost should go with 1 heat range colder (bkr7) and a slightly lower gap(0.028).

Also, I ran ngk bkr7e coppers and ngk bkr7eix irridiums and noticed zero difference in idle, smoothness, boost, performance, ect. The irridiums are 5 times more expensive, but last 6 times longer. So unless you like changing your plugs often and spending more money in the long run, just buy irridiums.

[PDX04a4]

Generally people pushing higher boost should go with 1 heat range colder (bkr7) and a slightly lower gap(0.028).

Also, I ran ngk bkr7e coppers and ngk bkr7eix irridiums and noticed zero difference in idle, smoothness, boost, performance, ect. The irridiums are 5 times more expensive, but last 6 times longer. So unless you like changing your plugs often and spending more money in the long run, just buy irridiums.

X2, if you are running bigger injectors and software you want to go a step colder, i run the bkr7eix irridiums and they are pretty nice. i'd rather not have to change my plugs every 5k , but i might try the coppers next year to see how they go. gap them around 0.028, DO NOT expect them to come pre-gapped at whatever out of the box. when i got my 7eix's i gapped them (also, use a wire gapper, not the stupid coin) out of the box and they were wwaaaayyyy off, even way off 0.032, one was at like 0.024 and another was at like 0.038.

[PRY4SNO]

There's some old or misinformation here.

I got cussed out by my tuner for bringing in 386cc (TT225) injectors to get stage two tuned. His recommendation was 440cc injectors because, "otherwise you're wastin your time." Whadda know, his theory was seconded by my other tuner in another city.

Next, I've been running the same copper plugs, NGK-BKR6E, for well over 20,000 km and they're in fantastic condition. I've checked them each oil change and so far so good.

My two cents is get the reflash and wait for injectors until you decide what turbo suits your goals. If a hybrid K04 or GTRS is in your future then pull the trigger on the 440s now and then it's one less thing you need to do when you get to that point.

[onceover]

You can just go throwing any size injector you want at the car and hope it will work. The APR stage 1+ file has been specifically designed for those injectors. If you were to put anything bigger in you would run rich. If this werent the case, everyone would be buying 550cc injectors for their 1+ flash as theyre cheaper than the TT225's, and leave you room to upgrade to BT

[AudiNFS]

But for just a stage one GIAC chip on an otherwise completely stock car, will I NEED injectors? And where can you buy the spacers (i guess) for the spark plugs. I got recommended the .028 by someone else too. Where is a good website for those plugs? Help is greatly appreciated everyone!

[itsmatt33]

just bought some 7eix's on ebay for 29 bucks shipped

[old guy]

But for just a stage one GIAC chip on an otherwise completely stock car, will I NEED injectors? And where can you buy the spacers (i guess) for the spark plugs. I got recommended the .028 by someone else too. Where is a good website for those plugs? Help is greatly appreciated everyone!

A basic chip doesn't require changing the injectors. Since you have a B5 model your fuel delivery system is totally different than the B6. You will be better served posting questions on the B5 forum. You don't need spacers.

[tapA4]

Love the info! Thanks to all!

[tapA4]

ngk bkr6e if you want to change them every 5k

ngk bkr6eix if you want to change them every 30k.

the copper ones wont last as long but will perform slightly better. opposite for the iridium ones.

for the stage 1+ chip, youll need bosch 386cc (TT225) injectors. I think ecs tuning is having a sale on them right now. You can run a 1+ file without aftermarket exhaust, but youll see better gains with one

And with the APR chip, the bosch 386cc (TT225) injectors are the ones that would be coming in the 1+ package I would imagine..correct?

[onceover]

yes but its probably cheaper to buy them from someone other than APR

[tapA4]

yes but its probably cheaper to buy them from someone other than APR

Ok, cool. And no matter where I buy them, I'll still maintain the same power output I would imagine. Also, I made a post about a sprint booster: http://www.audizine.com/forum/showth...-input-on-this ; would the chip take the place of the sprint booster, or would it still increase throttle response, or will the chip tell the computer to increase throttle response?

[b6onboost]

Which tuner recommends 440cc injectors for a tuned stock turbo? Not GIAC, REVO, APR, ect. They all specify 380-386cc.

There's some old or misinformation here.

I got cussed out by my tuner for bringing in 386cc (TT225) injectors to get stage two tuned. His recommendation was 440cc injectors because, "otherwise you're wastin your time." Whadda know, his theory was seconded by my other tuner in another city.

Next, I've been running the same copper plugs, NGK-BKR6E, for well over 20,000 km and they're in fantastic condition. I've checked them each oil change and so far so good.

My two cents is get the reflash and wait for injectors until you decide what turbo suits your goals. If a hybrid K04 or GTRS is in your future then pull the trigger on the 440s now and then it's one less thing you need to do when you get to that point.

[Quattro05]

I third had the same question about what plugs n chip to use, upgrade.

[PRY4SNO]

Which tuner recommends 440cc injectors for a tuned stock turbo? Not GIAC, REVO, APR, ect. They all specify 380-386cc.

Unitronic, they'll tune stage two to stock, TT225 or 440cc injectors.

Should have specified that but was posting on my phone.

[BASARAB]

just bought some 7eix's on ebay for 29 bucks shipped

I did for $11 http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT

[A4orce84]

BKR7EIX = 30k change? Just trying to understand at what interval do you change out the iridium plugs?

And these are the correct one sfor 1.8T right:
http://cgi.ebay.com/ebaymotors/ws/eB...ht_2184wt_935T

Thanks.

[Audinat0r]

Found these TT225 injectors for a great price http://www.ecodetuning.com/shop/cart...t_detail&p=564

[onlyaudis]

Ok, cool. And no matter where I buy them, I'll still maintain the same power output I would imagine. Also, I made a post about a sprint booster: http://www.audizine.com/forum/showth...-input-on-this ; would the chip take the place of the sprint booster, or would it still increase throttle response, or will the chip tell the computer to increase throttle response?

The Sprint booster gets bad mouthed on the forums, so be fore warned. I run Revo stage 2 on a Tiptronic car, and liked the way the Sprint booster worked on that car. The car feels much more responsive overall, and the shifting even seemed to get a bit quicker. the Porsche place I got mine from told me the adaptive learning ecu ends up seeing the more aggressive signal from the spring booster, and sets the engine management accordingly. so it isn't the case that you can just "push the gas pedal faster" and get the same affect.

people have tried them here on the manual tranny cars and apparently they don't work as well on them as they do on the TIP cars. they also sell two versions, and the one listed for the manual trannies is more aggressive and I do not recommended getting that one in any case.

[A4orce84]

BKR7EIX = 30k change? Just trying to understand at what interval do you change out the iridium plugs?

And these are the correct one sfor 1.8T right:
http://cgi.ebay.com/ebaymotors/ws/eB...ht_2184wt_935T

Thanks.

Anyone can help with my spark-plug question please? Thanks.

[old guy]

Anyone can help with my spark-plug question please? Thanks.

Use that plug if you are chipped. Go with the BKR6E-IX if you are stock. They should be good for 30-40K. I change mine around 35K.

[A4orce84]

Thanks old-guy, is that ebay link valid?

I found this on Europa:
http://www.europaparts.com/spark-plug-bkr7eix.html

But it only lists 2.0T engines, and not 1.8Ts ?

Thanks.

[Matt@EuropaParts]

I personally run the Bosch F5DPOR's. More expensive, yeah, but its a great plug (and I get 35-40k out of them). Currently on my second set with this car.

http://www.europaparts.com/spark-plug-f5dpor-bosch.html

[PDX04a4]

Thanks old-guy, is that ebay link valid?

I found this on Europa:
http://www.europaparts.com/spark-plug-bkr7eix.html

But it only lists 2.0T engines, and not 1.8Ts ?

Thanks.

its good for any engine. here is where i got mine, a little cheaper plus free shipping:
http://www.amazon.com/NGK-BKR7EIX-Ir...0202208&sr=8-1

[EBG 18T]

I personally run the Bosch F5DPOR's. More expensive, yeah, but its a great plug (and I get 35-40k out of them). Currently on my second set with this car.

http://www.europaparts.com/spark-plug-f5dpor-bosch.html

Same plug i ran with my APR 1+, APR K04, GIAC K04, Altituned K04 Hyrbid and my Altituned GTRS setup now. Great plug that covers alot of applications. As for injectors run what ever injector is spec'd by the software provider. The Bosch OEM TT225 386cc are very popular for 1+ applications.