Yesterday, 06:42 PM

" I've seen some data on ASR turbos. They look to perform about like RB to me. The real issue with ASR isn't their N54 turbos its everything else with the business including the ownership. "

Yesterday, 03:12 PM

"

Originally Posted by jpsimon

When is chucks car ready? are you working with him?

I am but I think he changed plans on the hardware. He had a horrible experience with his installer and had to replace his entire motor. Everything left a bad taste in his mouth which is understandable. "

Yesterday, 02:28 PM

"

Originally Posted by jpsimon

TurboMike's car is at GIAC, sounds like among other setups they're going to tune an aggressive e85+meth map. we should see some nice numbers out of that

Yes hopefully so! If not he should drop the car off with me for a few days. I'd be happy to push the crap out of the turbos for him. "

Yesterday, 02:14 PM

"

Originally Posted by jpsimon

It seemed people were still complaining about it on e90post. Anyways, i'm happy it was such a simple fix.

Nothing is ever simple when dealing with thousands of cars! But if you are not over boosting down low, etc, then its probably fine.

Normally guys who use e90post are the ones that don't know about software updates or how to set things properly. They should really be reading n54tech instead. "

Yesterday, 01:29 PM

" Duty cycle is not really an indication of "safety". It's just a relative measure of vacuum applied to the wastegate actuator. Once you start changing around wastegates, etc, then it's only useful for comparison to the same car at various boost / rpm levels.

Anyway, log looks pretty solid! Hopefully someone can crack 500rw with these soon. 20psi, 12 degrees, on a dynojet, is the basic formula. "

Yesterday, 01:25 PM

Yesterday, 01:19 PM

"

Originally Posted by marv85

basically you can create a map6, and then use the meth additive to increase boost above your map6 setpoint? Does it shift the whole boost curve up by the additive?

With map 3 we have set a high and a low map and the meth flow (and modifier for octane adaption) moves target between those two maps. With map 6, the additive becomes the boost value that is added on top of map 6 as a function of meth flow and the modifier. "

Yesterday, 11:41 AM

"

Originally Posted by Flinchy

we pretty much ONLY have dynodynamics here... but they consistently read a lot lower than the numbers you guys get on your dynojets (my N52 reads 15-20whp lower at least)- i'll have to try and source a dynojet in brisbane here one day lol

The dynojet is the only type of dyno useful for comparing numbers via the internet. It's not always the best dyno to do tuning on but most of us tune on the road and just use the dyno for verification. "

Yesterday, 11:37 AM

" Was done a couple weeks ago. "

Yesterday, 11:02 AM

"

Originally Posted by mykal

I run E50 + meth but I have the "E85" flash loaded, should I go back to the old "race" flash I have from a few months ago?

It doesn't really matter... "

Yesterday, 10:36 AM

"

Originally Posted by keikdasneak

You can use meth with Map 7?

Sure. You can use meth with any map. But there is no safety or progressive boost mapping unless you are using map 3 (or do up a special map 6). People who run heavy E50 mixtures or race gas don't need a safety so sometimes they prefer map 7. With a BMS kit meth will flow on map 3, 6, & 7 by default. But the additive is only considered on map 3 & 6. "

05-22-2013, 11:27 PM

"

Originally Posted by themyst

Terry, food for thought:


I know you love running lean-ish on E85 mixtures but I think 12.5 is the sweet spot for a bit more safety and consistency on it. Rather run rich if it isn't costing you significant power than go all out. sweet numbers though

Yeah normally E50 + meth customers would use the "race" flash. But this one only runs meth sometimes. So runs the E85 flash full time. And the only way to do that is with the leaner air/fuel ratios. "

05-22-2013, 11:25 PM

"

Originally Posted by Q4P

this is of course assuming terrys 290 whp baseline dynojet... so pull 20 whp to be even w everyone else lol. A stock 335i dynos 265-275... any less and u have a low reading dyno, any more and u have a high reading dyno. Simple as that...

SpecialtyZ is considered the gold standard for dynos in this area by the boosted M3 crowd. This is the same dyno both Drew and Sticky use for their testing. They report it reads lower than some other dynojets in the area. I've been using it for years before SpecialtyZ owned it when it was LAPDs (corvette shop) dyno.

I dyno stock cars there all the time. They do 275-280whp. A few months ago I dyno tested a new 535 and he definitely did not think it was a high reading dyno. "

05-22-2013, 09:03 PM

"

Originally Posted by benzy89

I never understood this, especially if you have a Stock Baseline on the same dyno that illustrates the gains

It's because dynojets read relatively consistently across the world. I can make a baseline run be anything I want it to be but I can't make a dynojet read higher than normal. Njz is running basically the same map we ran when we made 460rw so he should be around 450-460rw with meth flowing on a dynojet. "

05-22-2013, 08:52 PM

"

Originally Posted by benzy89

460 WHP / 488 WTQ isn't a new stock turbo record -- Especially considering I'm hitting 461 WHP / 500 WTQ and @Njz has higher HP than me @ 469 WHP / 491 WTQ

I had a customer report 500rw on stock turbos last year. But it was some goofy European dyno. Only dynojets count. "

05-22-2013, 08:49 PM

"

Originally Posted by dzenno@ProTUNING Freaks

Good luck beating on stock frame turbos with that much wgdc...really not sure why you wouldn't cap it at 70% as absolute max...it'll destroy them quickly at those duty cycles up top..i get glory runs but to let them wind out to 86% is seriously way too high man

It was previously capped at 80% in the JB4 software but more and more customers just want the power output and don't care much about turbo life. It's hard to blame them as the factory turbos are pretty stout. The real risk IMHO isn't the turbos it's engine knock from all that exhaust back pressure. E85 comes in very handy for that. With real load on road PWM would be running closer to around 75%. I ran map 7 up to ~150mph all day long at the last runway event and by 5th gear PWM was actually down below 70% due to the higher EGT. "

05-22-2013, 08:41 PM

05-22-2013, 08:32 PM

05-22-2013, 08:29 PM

" Hey guys,

Had a chance to dyno a 335is today. He's running JB4 G5 (ISO_21 firmware), a new backend flash we made a couple weeks ago for DCT cars, BMS downpipes, BMS DCI, BMS CP, ETS IC, E40, and a BMS meth kit. All runs were done on map 7 which targets 18.5psi peak tapering to 14.5psi at redline. Runs were done in 5th gear and temps were in the high 70s.

Car performed flawlessly on the dyno and set a new N54 stock turbo power record. It's a touch over advanced for E40 @ ~6300rpm but the owner plans to run E50 and shifts around 6000rpm anyway, so we decided to leave it as is for now. We'll collect some additional road logs for further evaluation. The car is an absolute beast and he reports no DCT trans slippage. "

05-22-2013, 08:14 PM