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Old 03-15-2011, 01:40 PM   #163 (permalink)
Push370zzz
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Join Date: Jul 2009
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Quote:
Originally Posted by BLM View Post
I don't think we're intending to frustrate you bro. Everyones entitled to their opinion. In terms of "un-tunable" I think it really depends on personal preference and the "want" for power. It's hard to compare an OEM NA car with one that is F.I. Any F.I. car will make more power per mod. Once the VVEL is tuned I think the Z will be able to make even more power, both NA and with those who choose to go the F.I. route. But other than Porsche (and BMW wit the E46 M3) I don't see many other cars with so much power out of the box from a 6-cyl engine. Also, the Z has been shown to make 40 whp gains with intake, exhaust, and "tune" (just to smooth out AFR). I have a very long daily commute to work, and even on the freeways I dont have much chance to open the car up. I don't have much use for anything faster than this, even though I will be doing some bolt-on mods.

It all comes down to personal preference. I don't think anyone's "hating" on the 135i. Different strokes for different folks.
Are we really going to talk about what might happen with the VVEL?

Quote:
Originally Posted by GZ3 View Post
Untunable motor?! Are you serious! First off VVEL hasnt even been cracked, there are so many parameters that havent even been touched. Right now its just AF ratio, timming and a few other little adjustments...and even for what it is, it still makes decent power on a tune. Second, you need to realize that your "just a tune" is for your TURBOS! You have what 300hp/300tq TWIN TURBO charged straight 6 right? Well of course a tune is gonna do allot for for you, you have (2) huge power adders right there. That straight 6 motor with out the AID of turbos wouldnt tune for than 10-15rwhp. NA gain VS FI gain is a retarded comparison. In fact i dont know any motor in the history of man (maybe you can enlighten) that is NA with "just a tune" that picks up over 150rwhp. Your tuning for the TURBOS not the motor...that motor is nothing more power than a Scion TC without the turbos. Third, about the handling, you say that with just sways and this and that you can keep up with a 370Z..? Am sure, maybe, but what 370Z is gonna stay stock anyway?! Stock for stock, mod for mod the 135I will not outhandle the Z.../
I am well aware that the tuning just ups the boost...but I don't really care where the 100 bhp I picked up comes from. I don't know what I could have said to make you this angry over it, but I think it is more fun to spend a couple thousand dollars or so and pick up almost 200 hp at the crank (Tune + Methanol Injection + Bolt Ons). What does $2000 bucks get you in the Z...30whp? That's what I'm saying.

Quote:
Originally Posted by BLM View Post
Some of these numbers seem amiss. The "lowest" boost setting makes 360 whp? It's rated at 300 bhp, so I'm thinking 260 whp stock? So you're saying that just by turning up the boost you're gaining 100 whp? I doubt this, but if so, what is the stock boost? And what boost is the "high" setting? If you're gaining 100 whp that has to be a difference of almost 50% boost or more, which in every other stock turbo car I've seen, would need bigger injectors, fuel pump, oil cooler, and FMIC to operate without heat soak, knock (there must be a timing advance in this tune - there's no way it's just from increased boost), etc
I have seen dynos from 265 to 275 rwhp stock, producing 345 to about 355 rwhp with JUST a tune on map 1 @ 13 psi. Map 2 is 14.5 psi, and map 7 is more like 16-17 (I can't remember) but you need 100 Octane gas at a minimum. For map 1 and 2, you really don't need to modify a thing.

http://www.burgertuning.com/images/dyno2.jpg
BMW Performance | JB3 | JB4 | BMW Chip | Juice Box | E90 Tuning | JuiceBox | BMW Performance

Quote:
Originally Posted by GZ3 View Post
I have seen several dyno for this vehicle, the normal is about 260-280....so he is saying with "just a tune" no other supporting mods, just a flash, he is making over 120rwhp? The DME tune for these vehicles barely gets you close to 350rwhp
Said almost 400...which is around 370-380 at the wheels. Here is a dyno with lower boost setting and only intake and downpipes.
http://burgertuning.com/images/dyno3.jpg

Here's another with high boost map, upgraded FMIC, intake, 100 octane, and full exhaust.
http://burgertuning.com/images/jb3_max_power.jpg
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