Performance Coils
 

Hi Guys,
Just installed these Bavarian Autosport High Performance Coils. I will let you know what the butt dyno says as far as any increase in performance.

Cheers,

Will be waiting to see if there is actually a difference. And if the dyno run isn't till a couple days after the coils are on that would give plenty of time for the adaptations to set themselves to the coils, giving more accurate readings. Fingers crossed for real world numbers!

Don't want to disappoint you but he did say:

My butt dyno isn't very accurate but YMMV! :D :rofl:

Sorry,I guess I wasn't paying that close attention to another man's butt. :nanana:

any difference?
 

have you noticed any better drive ability? or any noticable throttle response?

I put these in my '02 3.0i at 65k miles and definitely felt a difference. It was a little "snappier" driving around town and it really got up and moved when getting on the freeway. Mileage went up by a little over 1 mpg as well. May have been more, but I guess I was having a little too much fun breaking them in... Look forward to hearing how you fare.

So far I would say there is defiantly an improvement in torque and acceleration. She just charges harder now. The increased performance from installing the headers was awesome but with these it just got even better.

Now the question is what performance chip do I get for my car now. There is Dinans, Turner has theirs and BavAuto has theirs. I figure with the Afe intake and high flow exhaust and headers with would be time for the chip. Any suggestions?

Weasel how much work is involved in putting on those bigger fuel injectors?? Time? And I will go and put Her on a real dyno and find out how much HP I have. I am curious with deleting the cats and headers there should be a nice gain. But who knows. I do like driving my X a lot more now!!!

The injectors shouldn't be that bad at all, much easier than the headers in the scheme of things.

Do you have a baseline from the dyno before making any of these mods? Before and after readings on the same dyno will be the only way to determine the delta.

I'm glad it is running well, but if you are going to the trouble of a dyno it would be good to see the actual gain, otherwise it is just a number.

If you are gonna do it, I would go with the Conforti Shark Injector (Turner Motorsports). Conforti has a good reputation for their tuning products. I think the Shark is also upgradable via USB for your specific mods as you add/remove other items.

Powerchips is another good tuner. Too bad you didn't actually dyno the numbers on the same day. Every a change in day can net different numbers, but a coil swap is very easy.

I feel a poem coming on -
6 lovely cylinders all in a row
fit some performance parts and see how fast they will go

Ooh ooh...do a V8 one!

two little engines fixed in a v
hit the skinny pedal and shout weehee

:rofl:
300 ponies under the hood
give them some gas and they sound really good

300 ponies in my V8
when they fire up they sound just great

This is when you tell us you've got a 3.0 :)

What gains could u realistically see with the v8 that has intake and exhaust? How do these different chips compare and differ?

Well, the Conforti shark injector is only for the I6 models... so that dosn't really help up V8 guys. I think the coils, injectors and a good program would make a decent enough difference for us tho.

Gone are the days of physical chips like I have in my M5. Nowadays it's a software programmer that usually goes through the OBDII port. HP gains can be seen all over the board, BMW never really see huge gains, if anything from 5-20, it really just depends on the whole setup. I still suggest Powerchips since they tune it based on your mods instead of a generic one-size-fits-all kind of tune most others do.

Jeez is powerchips info off... I just looked on their website and they are off their rockers! They say the 4.6is has 611 HP and 183 ftlbs of torque stock... just a wee bit off. Then they want $990 for the tuner? That page alone made me lose interest in them.

Wow, that is off just slightly...

Once again, Conforti or Dinan.

Ever made a typo? Obviously it's wrong, but either way. I'm not by any means defending them or saying they're the best, but over the years I've learned that $$Dinan$$ is conversative with their HP numbers for warranty/reliability reasons, Conforti is fine, but coming from the M5 forums, just about everyone rants and raves of the Powerchips for the E39 M5. My current E34 M5 has a physical chip made my Mark D'Sylva, the E38 7 is bone stock software only because I have no choice but going a custom tune and the 01 is still stock but I'm going to need to do something since I've got a pre-VANOS intake manifold installed, so I'm basically wasting potential power.

Yeah, but that's not just one typo.... They are waaay off on all their numbers, and the price listed is $990, which is more than double the price of Dinan which is only $399 full retail...

Yeah, but that's only Stage I. Add an intake, then you need Stage II for another $200, Stage III for exhaust adds another $200, etc etc. I still have a bad taste in my mouth when it comes to $$Dinan$$ from my E39 M5 days and my current 740iL when myself and others we're discovering that some of their parts we're nothing more than rebadged factory peices, like my pre-VANOS MAF and intake manifold swap. These aren't my words, but as I mentioned above, they're known to be on the more conservative side of HP gains for the sake of those who install their stuff and have warranties. BMW's (minus the newer FI cars) have always had a terrible $ per HP ratio. so if I'm going to spend any money whatsoever for software, I'd rather get my money's worth instead of going with the rumored conservative guys.

Last time I was on Powerchips site, they had my 740iL listed for like $600, but as I said, you tell them your mods and it's make the software for that. One you add more mods, then I'm not sure what happens. I was just throwing it out there as an option to add to those researching software tuners. I probably wouldn't make a decision on anyone of them till I actually called and spoke to someone regarding their warranty for gains, upgrading options, etc and weigh all the options.

no wonder you don't mind typos...

If it works in my favor....

Seriously though, I'd be calling all these retailers anyways just to ask questions before I throw $200 plus at anyone.

Cool business model. Every customer gets to be their very own beta tester.

If all the software is different, how do you have any confidence that it is better than the factory software? It obviously can't have been tested with your own engine configuration.

:rofl::rofl:

I think I will go with Conforti's software.

I put new OEM coils in just before she turned 60 and noticed a slight improvement in most respects. As the coils have a habit of giving trouble I thought it was most likely to the new units having new insulation that was not in the process of breaking down. I was just going to change the rubber boots but found a deal that included coil packs and boots what the dealer wanted for boots only.

Ask them, I was just passing along the information as another option for tuning, that's all. As I said, I don't have their software on either of my M62 powered vehicles, so I'm just going off what I've read from others on the M5 boards.

No thanks. Everyone is entitled to their opinion, but mine is that selling a chip to tune a modern naturally aspirated vehicle is essentially a scam.

Yeah, you are not going to get much HP out of a chip/ecu flash for a modern N/A BMW engine. Some will raise the rev limiter and remove the top speed limiter as well though.

I think there is always a little wiggle room left just to be on the safe side, so I don't think it's a scam. I'm not sure what years you consider to be modern, but my 91 M5 came with 315hp stock, yet the chip I have bumped it up to 340. That sounds like a lot for such a simple chip, but it was literally a night and day difference on the M. My bike has software as well, and it's a huge difference. As for the X, the gains are only 10hp or so, which isn't huge, but probably noticeable nonetheless. IMHO, about the only scam here really is $$Dinan$$ and their pricing on parts, but as I mentioned, I don't doubt that there is always a little wiggle room left in software tuning from any stock ECU, BMW or otherwise.

While that can be considered both a plus and a minus, that's is what I got from the 2nd chip that I got in my M5.

It seems like there was more HP left on the table in the 1980's and early 1990's. Mid 1990's and on the gains started shrinking (with the exception of the new turbos). I think Conforti squeezes about 20 HP out of the new M3 with dyno sheets to prove it.

The dyno sheet on Turner Motorsports website shows a 2 lb. ft of torque and 3.5 HP increase for the X5 3.0 engine. Add the Conforti cold air intake and it bumps it to 7 lb. ft and 7 HP. Also, keep in mind that most of this HP is available in the second half of the RPM range.

On the 3.0, I'd only go FI and never look back.

I don't consider a 20 year old vehicle current, it is old enough to drink, vote, and be drafted. Another five years and you can put collector/vintage plates on it.

So, if we believe their dynos, and you want to get 3% more hp in the upper rev ranges, why not just drive at 3% higher rpm? That is free. To me, none of those very minor hp gains mean anything on the street unless you are at WOT, preferably at redline. My X5 never spent much time in that situation.

I guess the software would be more desireable to those who use WOT more often. I would say I go WOT at least once every time I drive my car. Multiple times in some instances. Personally, I don't think I would pay for any software upgrade if I had a 3.0 X5, but that is just me. A 1-2% gain isn't really worth it, imo.

I have a Conforti chip in my e36. According to Turner, my gains are 22 hp and 20 lb. ft., which seemed worth the $300 to me (even if those figures are slightly high). The increased RPM's seemed like an advantage as well.

What I would be looking for in "performance software" for my X would be activating the vanos earlier under a bit less load, slightly tweaking the spark timing advance, slightly tweaking the fuel map (and I mean not by too much on that one) and removing the top speed limiter (like I ever need to go over 155mph anyway)

Not all tuners cover all those areas, and most mainly change fuel trim and higher rev limiter... I would rather the timing and vanos changed for some low end results I feel in daily driving.

I saw that too and figured with the headers and cats removed I may get some additional gains. I am going to contact Conforti and see if they can tweek a chip for me similiar to what they did for the M5. They have a chip for the M5 with headers and cats removed. It's probably just wishful thinking but I am going to ask.