Most powerful 135i in Oz?

[FLYN55]

They weigh 1800kgs,

[FLYN55]

Originally Posted by martymil

Btw there is going to be a new owner taking possession of my car from Melbourne

Things are in the works so it will be up to him now to break the record

Should try crack at 10sec pass out of it before selling it :-)

[martymil]

Nah let the new owner take credit for it

Xr6 turbos are around 1750 from what I seen on the scales at Wsid, mine is 1580kg not much of a difference and their 4l makes monstrous torque with
their big singles as the 4l has enough gasses in the exhaust to turn it over quickly

Torque wins races at the drags and top end power is better for the track, it's a known fact.

[flinchy]

Originally Posted by FLYN55

Flinchy they are 1000cc only and that's 200Hp/injector of petrol based fuels. Then with a MicroTech ECU they'll only run at 80% which drops them down more. They are on like 99% maxed out. Race gas was C16 with an 11 heart range plug. No dyno was road tuned only, HP worked out from Mph/weight of car on Moroso speed calculator..
Now back to Martymils, 10sec goal

if you're only running 80% DC as 'max' they're not really 'maxed' out, but almost conservative and quite safe.. but ok fair enough.

ED: power IS torque, it's not power OR torque that's the E82's issue, the stock twins make as much torque pretty easily, as the XR6T does.. it's all in the setup that's holding the platform back, nothing else.

nor is it 'a known fact'... more revs = more hp, being able to play with the gearing more, to potentially reduce a shift.. hp gets you down the 1/4, not torque -_-

[MrBlonde]

martymil has a proven track record at WSID. flinchy?

[flinchy]

Originally Posted by MrBlonde

martymil has a proven track record at WSID. flinchy?

relevance?

[BMWhoarder]

Originally Posted by flinchy

if you're only running 80% DC as 'max' they're not really 'maxed' out, but almost conservative and quite safe.. but ok fair enough.

ED: power IS torque, it's not power OR torque that's the E82's issue, the stock twins make as much torque pretty easily, as the XR6T does.. it's all in the setup that's holding the platform back, nothing else.

nor is it 'a known fact'... more revs = more hp, being able to play with the gearing more, to potentially reduce a shift.. hp gets you down the 1/4, not torque -_-

Interesting points by all. I don't know the definitive answer one way or another so i also don't think broad, blanket statements such as saying it's "known fact" that torque wins at the drags should be flung around so easily. torque is useless without hp, and vice versa.

Lets look at the manufacturer specs for a couple of comparable cars:

125i - 215hp @5000, 310nm @1350–4800, 0-100km: 6.4(MT)/6.2(AT)
125d - 215hp @4400, 450nm @1500–2500, 0-100km: 6.5(MT)/6.3(AT)

The above is to be taken with a grain of salt, as all manufacturer specs should be, but interesting none the less.

As you can see, same quoted hp, the 125i produces less peak torque over a broader power band, yet is (marginally) quicker 0-100. This is possibly due to being quoted as weighing 75kg less than the 125d though.

isn't the preference to have more area under the torque curve, thus a broader powerband?

[flinchy]

yeah horsepower IS torque, so what you want is a lot of torque over a broad range, up into the high RPM.

You can multiply torque via gearing (low torque + gears = lots of torque to the ground)... you can't multiply hp (low hp = low hp)

[martymil]

Torque comes from displacement, hp comes from torque

HP = Torque x RPM ÷ 5252

The more torque you make the more hp power you make.

Definitely more torque over a broader range is better but the gearing comes into play.

But the general rule is torque is what wins races at the drags.

Getting a quick sixty and be able to keep the power going is always best

In our cars if I rev out to 6700rpm where I make my peak power I'm slower by at least 0.2 sec

When I change at 6000 rpm, because I dip into the meatier torque curve
that's able to pull the car harder through the gears, I'm always faster.

It comes down to a lot of factors but generally torque wins.

[flinchy]

ok that doesn't make sense at all.

yeah, peak acceleration comes at peak torque, but by shifting early you should be making your in-gear average torque across the rev range overall lower.

if i had a proper torque graph (not tractive effort) I could show this pretty easily.

before inlets were a thing, torque dropped off so hard that yeah, you shifted at 6k.. but peak power being pushed to the right means, just going by how physics works here, that shifting earlier will make you slower - unless there's some weird N54 specific thing going with the shift bog or timing pulls under real-world load and stuff lol.

I mean.. yeah, if real world you're finding that shifting earlier = better ET's, then that's what's happening.. but it means something else isn't right, and you're actually not making peak power past there, as it effectively means when you're not on the dyno, your car has a much worse torque curve.. got some logs on your 1/4 runs at all?

[martymil]

Flinchy how long have you been racing ?

There are far more factors than just hp.

And to assume there is something wrong with my car is just laughable.

[flinchy]

Originally Posted by martymil

Flinchy how long have you been racing ?

There are far more factors than just hp.

And to assume there is something wrong with my car is just laughable.

long enough to know how it works...

There really isn't, from a physics standpoint.. To the point you can calculate your horsepower BACK from your trap/weight, within reasonable accuracy.

If you're shifting below 'peak power' and getting better results (traps too?), you're not shifting below peak power. You can't argue against physics and be correct... Deny it all you want, if the dyno says 6700 is peak power, but real world says something else, something isn't right with your car when it comes to actually performing. Your choice if you want to actually check and not be contrarian for the sake of it.

ED: more clarification as to why.. if peak power is further right, it means torque isn't dropping off too fast (unlike without inlets).. shifting gears means you're dropping your torque multiplication down, so you have less torque at the wheels.. THAT is why it should be less efficient to shift before peak power, because you're still making more torque to the wheels by revving it out in the lower gear.

shifting early = faster means your torque IS dropping off so hard, that you're making more torque to the wheels lower in the revs EVEN in the higher gear.

[martymil]

You definelty think you know

[flinchy]

Originally Posted by martymil

You definelty think you know

it's ok mate, you don't have learn anything you don't want to, sometimes being wrong is ok (just read, and understand, the edit, if you don't want to be)

[Forced_downunder]

Now if you're talking fastest...

Hey all, who will be joining me next year at Temora and then Cooma to run 1000m runs?

It's getting lonely trying to slay all the V8's here on my own.

Tomorrow is race day in Cooma - Snowy Mountains 1000.

Temora saw me put down a 20.1 sec run topping out at 251. Hoping to run into high 19sec territory tomorrow with NLS and a new rear suspension setup.

Who is in next year, I can see if I can secure priority notification for registration next year.

[PeteA]

Originally Posted by Forced_downunder

Now if you're talking fastest...

Hey all, who will be joining me next year at Temora and then Cooma to run 1000m runs?

It's getting lonely trying to slay all the V8's here on my own.

Tomorrow is race day in Cooma - Snowy Mountains 1000.

Temora saw me put down a 20.1 sec run topping out at 251. Hoping to run into high 19sec territory tomorrow with NLS and a new rear suspension setup.

Who is in next year, I can see if I can secure priority notification for registration next year.

I will. Plan to trailer car over to participate

[martymil]

Flinchy & JB4-335 if I wanted an opinion to make my car faster I wouldn't ask you.

Lets face it, you can only dream being at the power level and times that only a handful of us are at.

You both need to step up, if you can and start running some fast times otherwise
your opinions are just that opinions.

When you actually get there one day if ever, good luck to you.

[JB4-335]

Originally Posted by martymil

Flinchy & JB4-335 if I wanted an opinion to make my car faster I wouldn't ask you.

Lets face it, you can only dream being at the power level and times that only a handful of us are at.

You both need to step up, if you can and start running some fast times otherwise
your opinions are just that opinions.

When you actually get there one day if ever, good luck to you.

Lets get this straight, I never offered my opinion to make your car faster. I only helped you back in the drag racing thread to understand your car just isn't that quick and your times were bogus at WSID. Which you now understand that you were wrong. It may be fast for you, but your fast and someone else's is very different.

You haven't done much to impress me. There's many stock turbo guys running quicker times than you.

You're correct, they are just our opinions. I ran an 11 second pass in my old 135i almost 4 years ago (before E85). My cuurent car traps only 120mph but to me that's enough for a daily street car. That's good for a 11.6X with the right launch but I'm not an ET guy. I believe in trap speed.

It's pretty evident that this is your first "quick" car by your post's and that's ok. Seeing as this is your real first rodeo just take the time to learn from the more knowledgeable on here.

This quote often comes to mind when I read your post's. "The capacity to learn is a gift; The ability to learn is a skill; The willingness to learn is a choice". I think you've clearly chosen the later of this quote by Brian Herbert.

Don't worry you'll see me at WSID one day soon and if your lucky I'll trailer my real car out there again.

I really enjoy having someone like you on this forum. You crack me up.

[martymil]

I'm not worried at all one little bit

[martymil]

You assume to much as per all your posts

[1q2w3e4r]

Originally Posted by Forced_downunder

Now if you're talking fastest...

Hey all, who will be joining me next year at Temora and then Cooma to run 1000m runs?

It's getting lonely trying to slay all the V8's here on my own.

Tomorrow is race day in Cooma - Snowy Mountains 1000.

Temora saw me put down a 20.1 sec run topping out at 251. Hoping to run into high 19sec territory tomorrow with NLS and a new rear suspension setup.

Who is in next year, I can see if I can secure priority notification for registration next year.

This has always raised my interest, I might come along next year for a run at Cooma. It seems like the perfect event to really open the car(s) up at.

Originally Posted by martymil

Flinchy & JB4-335 if I wanted an opinion to make my car faster I wouldn't ask you.

Lets face it, you can only dream being at the power level and times that only a handful of us are at.

You both need to step up, if you can and start running some fast times otherwise
your opinions are just that opinions.

When you actually get there one day if ever, good luck to you.

Pretty sure JB has been out and run his car plenty of times and was/has been offering his opinion like in the 60'ft posts/thread a while back.

Just enjoy your car for yourself, not anyone else. There's always someone faster out there or with a bigger/badder car.

[JB4-335]

Originally Posted by 1q2w3e4r

This has always raised my interest, I might come along next year for a run at Cooma. It seems like the perfect event to really open the car(s) up at.



Pretty sure JB has been out and run his car plenty of times and was/has been offering his opinion like in the 60'ft posts/thread a while back.

Just enjoy your car for yourself, not anyone else. There's always someone faster out there or with a bigger/badder car.

Hey Benny, I did the Cooma event a few years back with 2 other 135i's and it was a blast. You still got the Porsche?

Thanks mate. The problem is that these newbees come on and throw some money at their cars and think they're experts overnight. Just keeping it real.