Who wants to know how much HP a 745i really makes?

johnnye23 · Post by **johnnye23** » Mar 29, 2007 11:48 PM

Cmon jump off Todd , you know you want to do it. Johnny

Can you imagine showing up at the drag strip in the families four door 745i ????

You could mess with some folks.

Kyle in NO · Post by **Kyle in NO** » Mar 29, 2007 11:51 PM

Get off mah damn fence ya hoodlums!

TAKE IT! I WANNA SEE SOME NUMBERS!!!

vance · Post by **vance** » Mar 29, 2007 11:53 PM

Figures don't lie and liers don't figure. Or somthing like that. I'm on my third Erdinger, but I'm still sure it's a great idea.

Vance

T_C_D · Post by **T_C_D** » Mar 29, 2007 11:54 PM

It's going to the dragstrip on April 14th.

I was dissappointed when I increased the boost from 8 to 14psi today. It really felt like an increase to 10/11psi. It's nothing like a TCD car at 14psi.

4.10LSD and automatic make efficient use of the power though.

Maybe driving the e36 is ruining the 745i for me?

Anyone ready to pay $7500 for the 745i?

Todd

M635CSi · Post by **M635CSi** » Mar 30, 2007 12:02 AM

How far are you taking the 745? Are you going to upgrade the turbo, intercooler and install Megasquirt on the 745?

No doubt the E36 is having an effect.

T_C_D · Post by **T_C_D** » Mar 30, 2007 12:04 AM

M635CSi wrote:How far are you taking the 745? Are you going to upgrade the turbo, intercooler and install Megasquirt on the 745?

No doubt the E36 is having an effect.

Turbo upgrade and possibly the exhaust. Stock engine management works fine.

Leaving it alone for several months now. Time to work on the race car.

Todd

johnnye23 · Post by **johnnye23** » Mar 30, 2007 12:16 AM

Todd you mentioned (teased) of a stock K27 turbo upgrade . It would be great to see the before and after results.

T_C_D · Post by **T_C_D** » Mar 30, 2007 12:34 AM

johnnye23 wrote:Todd you mentioned (teased) of a stock K27 turbo upgrade . It would be great to see the before and after results.

You mean actual data to prove the worth of an upgrade. What kind of company does that?

GregATL · Post by **GregATL** » Mar 30, 2007 12:56 AM

O.K. you can't title a thread like that and then not produce the goods. You are now obligated

to provide us with something tangible.

It's just not fair.

It's just like when some says " oh by the way, wait. Nevermind, I really shouldn't tell that".

It just ain't right.

skip535i · Post by **skip535i** » Mar 30, 2007 12:57 AM

My dream old school bimmer cruizer is a turbo E23. A turbo E23 with some TCD treatment is a wet dream. Good job with that car Todd, NOW GO TO THE DYNO!

Duke · Post by **Duke** » Mar 30, 2007 7:03 AM

Hey...........I thought you wanted to race me at 5er Fest with your TCDed 745i. Don't wimp out now

wickahead · Post by **wickahead** » Mar 30, 2007 11:07 AM

Yes, inquiring minds want to know.

It would be a good reference point. A (mildly) upgraded 745i powerplant will produce XXX rwhp (and/or YYY rw torque), and the TCD systems will produce between AAA and BBB hp/tq.

In other words, please please please please please.

T_C_D · Post by **T_C_D** » Mar 30, 2007 2:43 PM

Sorry guys, I didn't have enough time. I'll do it in a few weeks.

Todd

Duke · Post by **Duke** » Mar 30, 2007 2:44 PM

T_C_D wrote:Sorry guys, I didn't have enough time. I'll do it in a few weeks.

Todd

So what did the E36 do?

T_C_D · Post by **T_C_D** » Mar 30, 2007 3:04 PM

Duke M535ti wrote:
T_C_D wrote:Sorry guys, I didn't have enough time. I'll do it in a few weeks.

Todd
So what did the E36 do?

Very well

but I am not ready to post the results. Needs some tweaking before I make the "big" post. I am on vacation next week but will be back on the dyno the following week.

rundatrack · Post by **rundatrack** » Mar 30, 2007 3:06 PM

Vacations are good....enjoy...

turbodan · Post by **turbodan** » Mar 30, 2007 3:22 PM

I bet 330hp, 360tq at the crank at ten psi...Pure speculation.......

T_C_D · Post by **T_C_D** » Mar 30, 2007 4:12 PM

turbodan wrote:I bet 330hp, 360tq at the crank at ten psi...Pure speculation.......

2.5l M50 makes less tq than HP.

Duke · Post by **Duke** » Mar 30, 2007 4:18 PM

T_C_D wrote:
turbodan wrote:I bet 330hp, 360tq at the crank at ten psi...Pure speculation.......
2.5l M50 makes less tq than HP.

I am willing to say that a 4 valve head will always make less TQ than HP. Nature of the beast.

bimmerboy · Post by **bimmerboy** » Apr 01, 2007 4:35 PM

saabs and old audi 4 valves always made more torque than hp. because of theyre small, spool oriented turbos i think.

Duke · Post by **Duke** » Apr 01, 2007 6:04 PM

Duke M535ti wrote:Hey...........I thought you wanted to race me at 5er Fest with your TCDed 745i. Don't wimp out now

I played with the launch control for the first time today (@ 10 psi). All I can say is, you are dead meat Todd. I may need to get a neck brace

Now too get the full throttle shifting operational. I have to connect a wire to the clutch switch and the traction control ECU and it will be working.

As agreed on the phone, street tires from a dead stop.

Hey 5er Fest coordinators, we need a drag strip!

vance · Post by **vance** » Apr 01, 2007 6:32 PM

Here you go. http://www.brainerdracing.com/schedule.html
Test and tune May 25th, gates open at 6 pm. Bracket racing on the 26th. I'm thinking a 5er Fest version of "Pinks".

Vance

rundatrack · Post by **rundatrack** » Apr 11, 2007 11:07 PM

Duke M535ti wrote:
Duke M535ti wrote:Hey...........I thought you wanted to race me at 5er Fest with your TCDed 745i. Don't wimp out now
I played with the launch control for the first time today (@ 10 psi). All I can say is, you are dead meat Todd. I may need to get a neck brace Now too get the full throttle shifting operational. I have to connect a wire to the clutch switch and the traction control ECU and it will be working.

As agreed on the phone, street tires from a dead stop.

Hey 5er Fest coordinators, we need a drag strip!

Please get the launch control right...or your rocker arms are going to.............I hope you know what I am talking about....

Duke · Post by **Duke** » Apr 12, 2007 11:31 AM

rundatrack wrote:.......I hope you know what I am talking about....

Nope............do you? 8)

rundatrack · Post by **rundatrack** » Apr 16, 2007 9:58 AM

Duke M535ti wrote:
rundatrack wrote:.......I hope you know what I am talking about....
Nope............do you? 8)

*Hands clasped praying to God for the best results*

Will your car backfire hard with that launch control?

Duke · Post by **Duke** » Apr 16, 2007 10:59 AM

rundatrack wrote:
Duke M535ti wrote:
rundatrack wrote:.......I hope you know what I am talking about....
Nope............do you? 8)
*Hands clasped praying to God for the best results*

Will your car backfire hard with that launch control?

No, does not back fire at all. Just a combustion stroke with no fuel. Sounds like dull thuds.

rundatrack · Post by **rundatrack** » Apr 16, 2007 1:20 PM

Duke M535ti wrote:
rundatrack wrote:
Duke M535ti wrote:
rundatrack wrote:.......I hope you know what I am talking about....
Nope............do you? 8)
*Hands clasped praying to God for the best results*

Will your car backfire hard with that launch control?
No, does not back fire at all. Just a combustion stroke with no fuel. Sounds like dull thuds.

I have been warned that its better for the timing to be adjusted than a full fuel cut

Ya rocker arms will thank you....

But if ya good then...

Duke · Post by **Duke** » Apr 16, 2007 2:26 PM

rundatrack wrote:I have been warned that its better for the timing to be adjusted than a full fuel cut

Ya rocker arms will thank you....

But if ya good then...

This is the traction control that the F1 cars use. If it is safe for those engines then it safe for me.

Ignition cut would be very bad. You will still be flooding the cylinders with fuel and then you enable the ignition and you will get a BIG explosion that will extend all the way thru your exhaust system due to the unburnt fuel that has flooding it.

rundatrack · Post by **rundatrack** » Apr 16, 2007 4:30 PM

Duke M535ti wrote:
rundatrack wrote:I have been warned that its better for the timing to be adjusted than a full fuel cut

Ya rocker arms will thank you....

But if ya good then...

This is the traction control that the F1 cars use. If it is safe for those engines then it safe for me.

Ignition cut would be very bad. You will still be flooding the cylinders with fuel and then you enable the ignition and you will get a BIG explosion that will extend all the way thru your exhaust system due to the unburnt fuel that has flooding it.

Your comparing your engine internals to an F1 car?

*backs away from the m535......SLOWLY....then runs behind bushes to see the carnage*

Duke · Post by **Duke** » Apr 16, 2007 4:33 PM

rundatrack wrote: Your comparing your engine internals to an F1 car?

Yup.................pistons, valves, spark plugs, fuel injectors...etc..etc. It even has to be rebuild on a regular basis

MyE28.com

MyE28.com

Who wants to know how much HP a 745i really makes?