I just over-clocked my car!

mrturrari · 05-16-2008, 11:36 PM

Yes, you heard that right. I over-clocked my car... more specifically the 5sfe ECU. Tonight, (drum roll please) perhaps for the first time ever, a 5sfe with a stock computer bounced off it's new 7020rpm rev limiter.

And the cams took it right up there no problem. All that is left is to tune it a little richer with the SMT6 to compensate for the ECU now thinking the engine is not spinning as fast as it really is. That makes my new top speed of... hmmmm let's see... 140mph.

SpeedySix · 05-16-2008, 11:46 PM

Awesome! Out of curiosity, why 7020RPM of all numbers?

mrturrari · 05-16-2008, 11:49 PM

That's what the value of the crystal I replaced the stock one with worked out to. Or more specifically it's the one in the range I was looking for from the Digi-key catalog.

SpeedySix · 05-16-2008, 11:52 PM

Ah! Makes sense. How aggressive are your cams, and this is on your 5sfte, right? Did the cams decrease your lowend torque much?

mrturrari · 05-17-2008, 12:19 AM

The cams are the Webcam 763 grind which are about the same as a HKS 264 in lift and duration. I don't have the turbo on right now but maybe in a month or two. Right now I am just seeing what this thing will do NA. Truthfully it is hard to say if I have lost much low end torque because the top end has so much more. I'm sure I lost some if for no other reason then the 5sfe ECU isn't tuned right for that much overlap but it still pulls pretty well even down low.

TomsMR2 · 05-17-2008, 05:04 PM

interesting.. a LOT of people were having problems throwing codes, or it would run for a bit and stall out. did you just straight up replace the crystal, or was there more involved?

either way, awesome work

wagonis · 05-17-2008, 05:32 PM

NICE!

mrturrari · 05-17-2008, 10:50 PM

Yeah, I just replaced the crystal and it is running fine. I have now gone through and done a tune to richen it up again to 13:1 at WOT. I was surprised at how much I had to change things in the tune with just an 8% difference.

PHOENIX · 05-18-2008, 01:18 AM

When are you going to Dyno that thing! ? ! ? ! ? ! ?

mrturrari · 05-18-2008, 11:12 PM

Soon... very soon.

Anyone want to see videos? I thought I would try to give you all a view of what I see when I drive my car. The AFRs are still pretty rich in the highest RPMs. This first one is a quick right corner then up to 60mph in 2nd:

(11MB) http://warp.scl.utah.edu/mr2/Videos/...000rpms-2.mpeg

This next one I cruise around for a little then get on the freeway (uphill ramp) going from almost stopped to a speed which I am not going to publish. You can do the math as to what 7000rpms in 3rd on a s54 will get you:

(28MB) http://warp.scl.utah.edu/mr2/Videos/...000rpms-1.mpeg

Ku-sama · 05-19-2008, 12:47 AM

Quote:

Originally Posted by mrturrari

Soon... very soon.

Anyone want to see videos? I thought I would try to give you all a view of what I see when I drive my car. The AFRs are still pretty rich in the highest RPMs. This first one is a quick right corner then up to 60mph in 2nd:

(11MB) http://warp.scl.utah.edu/mr2/Videos/...000rpms-2.mpeg

This next one I cruise around for a little then get on the freeway (uphill ramp) going from almost stopped to a speed which I am not going to publish. You can do the math as to what 7000rpms in 3rd on a s54 will get you:

(28MB) http://warp.scl.utah.edu/mr2/Videos/...000rpms-1.mpeg

95 or so....

Dance_Business · 05-19-2008, 02:37 AM

Congrats. Will this work on other ecu's? Think 5vz-fe...

mrturrari · 05-19-2008, 02:48 AM

Maybe. It would depend on the ECU configuration and how many processors and clocks it has. I have a 5vz ECU in storage I could look at or if someone has a pic of the circuit board they could post. Basically if it has only one big chip and one crystal near it then it would probably work.

Dance_Business · 05-19-2008, 03:07 AM

Quote:

Originally Posted by mrturrari

Maybe. It would depend on the ECU configuration and how many processors and clocks it has. I have a 5vz ECU in storage I could look at or if someone has a pic of the circuit board they could post. Basically if it has only one big chip and one crystal near it then it would probably work.

You would make a lot of people happy with that news.

wesnemo · 05-20-2008, 07:57 PM

Good work!

canadam · 05-20-2008, 08:07 PM

Good job

Redstar · 05-21-2008, 02:55 PM

Awesome!

I've been playing around with my emanage on my rev 1 5S, so far just datalogging to get an idea of what the computer is doing.

Couple questions about your setup:
Rev 2 computer?
Stock rods and bolts?

mrturrari · 05-21-2008, 03:20 PM

What have you been logging? That's a good idea to know what normal is before making mods.

Quote:

Originally Posted by Redstar

Rev 2 computer?

Yes.

Quote:

Originally Posted by Redstar

Stock rods and bolts?

No. Eagle 3sgte H-Beams.

Redstar · 05-21-2008, 03:53 PM

Rev limit was something I was planning to look into after everything else was sorted out. Good to know there might be a fairly easy solution. Mind if I ask how you figured out base frequency? Was it printed on the crystal housing?

I've played with the data logging features for: Timing, airflow (map) and injector duty cycle. Still just figuring out the emanage so I will be comfortable tuning with it later. Will be working on the wbo2 datalog hack for it if I ever get more time. I've heard good things about the SMT's, seems to be working well for you.

PearlJammzz · 05-21-2008, 04:04 PM

Rode in the car last night, it felt nice. Felt liek the damn thing was going to break the way it revved so high lol.

Dyno, then turbo, then dyno, then 5vz

05-16-2008, 11:36 PM	#1 (permalink)
mrturrari I <3 my 5sfe Join Date: Mar 2005 Posts: 393 Thanks: 2 Thanked 84 Times in 56 Posts iTrader Rating: (0/0% )	I just over-clocked my car! Yes, you heard that right. I over-clocked my car... more specifically the 5sfe ECU. Tonight, (drum roll please) perhaps for the first time ever, a 5sfe with a stock computer bounced off it's new 7020rpm rev limiter. And the cams took it right up there no problem. All that is left is to tune it a little richer with the SMT6 to compensate for the ECU now thinking the engine is not spinning as fast as it really is. That makes my new top speed of... hmmmm let's see... 140mph.

05-16-2008, 11:46 PM	#2 (permalink)
SpeedySix Some Skills Join Date: Mar 2008 Location: Rockford, IL USA Posts: 78 Thanks: 6 Thanked 6 Times in 6 Posts iTrader Rating: (1/100% )	Awesome! Out of curiosity, why 7020RPM of all numbers?

05-16-2008, 11:49 PM	#3 (permalink)
mrturrari I <3 my 5sfe Join Date: Mar 2005 Posts: 393 Thanks: 2 Thanked 84 Times in 56 Posts iTrader Rating: (0/0% )	That's what the value of the crystal I replaced the stock one with worked out to. Or more specifically it's the one in the range I was looking for from the Digi-key catalog.

05-16-2008, 11:52 PM	#4 (permalink)
SpeedySix Some Skills Join Date: Mar 2008 Location: Rockford, IL USA Posts: 78 Thanks: 6 Thanked 6 Times in 6 Posts iTrader Rating: (1/100% )	Ah! Makes sense. How aggressive are your cams, and this is on your 5sfte, right? Did the cams decrease your lowend torque much?

05-17-2008, 12:19 AM	#5 (permalink)
mrturrari I <3 my 5sfe Join Date: Mar 2005 Posts: 393 Thanks: 2 Thanked 84 Times in 56 Posts iTrader Rating: (0/0% )	The cams are the Webcam 763 grind which are about the same as a HKS 264 in lift and duration. I don't have the turbo on right now but maybe in a month or two. Right now I am just seeing what this thing will do NA. Truthfully it is hard to say if I have lost much low end torque because the top end has so much more. I'm sure I lost some if for no other reason then the 5sfe ECU isn't tuned right for that much overlap but it still pulls pretty well even down low.

05-17-2008, 05:04 PM	#6 (permalink)
TomsMR2 Formerly TomsH Join Date: Feb 2005 Location: Bay Area Posts: 1,894 Thanks: 8 Thanked 142 Times in 119 Posts Blog Entries: 1 iTrader Rating: (0/0% )	interesting.. a LOT of people were having problems throwing codes, or it would run for a bit and stall out. did you just straight up replace the crystal, or was there more involved? either way, awesome work

05-17-2008, 05:32 PM	#7 (permalink)
wagonis Cage Fighter Join Date: Jun 2006 Location: Tampa Bay area, FL Posts: 810 Thanks: 43 Thanked 13 Times in 13 Posts iTrader Rating: (4/100% )	NICE!

05-17-2008, 10:50 PM	#8 (permalink)
mrturrari I <3 my 5sfe Join Date: Mar 2005 Posts: 393 Thanks: 2 Thanked 84 Times in 56 Posts iTrader Rating: (0/0% )	Yeah, I just replaced the crystal and it is running fine. I have now gone through and done a tune to richen it up again to 13:1 at WOT. I was surprised at how much I had to change things in the tune with just an 8% difference.

05-18-2008, 01:18 AM	#9 (permalink)
PHOENIX Beams Owners Group Join Date: Mar 2005 Location: Tachikawa, Japan Posts: 6,927 Thanks: 68 Thanked 201 Times in 151 Posts Blog Entries: 1 My Google Map iTrader Rating: (37/100% )	When are you going to Dyno that thing! ? ! ? ! ? ! ?

05-18-2008, 11:12 PM	#10 (permalink)
mrturrari I <3 my 5sfe Join Date: Mar 2005 Posts: 393 Thanks: 2 Thanked 84 Times in 56 Posts iTrader Rating: (0/0% )	Soon... very soon. Anyone want to see videos? I thought I would try to give you all a view of what I see when I drive my car. The AFRs are still pretty rich in the highest RPMs. This first one is a quick right corner then up to 60mph in 2nd: (11MB) http://warp.scl.utah.edu/mr2/Videos/...000rpms-2.mpeg This next one I cruise around for a little then get on the freeway (uphill ramp) going from almost stopped to a speed which I am not going to publish. You can do the math as to what 7000rpms in 3rd on a s54 will get you: (28MB) http://warp.scl.utah.edu/mr2/Videos/...000rpms-1.mpeg

05-19-2008, 02:37 AM	#12 (permalink)
Dance_Business Mad Dance Skills Join Date: Apr 2006 Location: 20 minutes to Graceland Posts: 845 Thanks: 62 Thanked 5 Times in 5 Posts My Google Map iTrader Rating: (4/100% )	Congrats. Will this work on other ecu's? Think 5vz-fe...

05-19-2008, 02:48 AM	#13 (permalink)
mrturrari I <3 my 5sfe Join Date: Mar 2005 Posts: 393 Thanks: 2 Thanked 84 Times in 56 Posts iTrader Rating: (0/0% )	Maybe. It would depend on the ECU configuration and how many processors and clocks it has. I have a 5vz ECU in storage I could look at or if someone has a pic of the circuit board they could post. Basically if it has only one big chip and one crystal near it then it would probably work.

05-20-2008, 07:57 PM	#15 (permalink)
wesnemo wesnemo Join Date: Feb 2007 Location: Northeast PA Posts: 261 Thanks: 11 Thanked 15 Times in 9 Posts iTrader Rating: (2/100% )	Good work!

05-20-2008, 08:07 PM	#16 (permalink)
canadam MidshipExpress Join Date: Feb 2005 Location: Beautiful British Columbia Posts: 9,130 Thanks: 106 Thanked 118 Times in 104 Posts My Google Map iTrader Rating: (28/100% )	Good job

05-21-2008, 02:55 PM	#17 (permalink)
Redstar My other cars are jealous Join Date: Feb 2007 Location: Bellingham, WA Posts: 108 Thanks: 8 Thanked 3 Times in 3 Posts iTrader Rating: (4/100% )	Awesome! I've been playing around with my emanage on my rev 1 5S, so far just datalogging to get an idea of what the computer is doing. Couple questions about your setup: Rev 2 computer? Stock rods and bolts?

05-21-2008, 03:53 PM	#19 (permalink)
Redstar My other cars are jealous Join Date: Feb 2007 Location: Bellingham, WA Posts: 108 Thanks: 8 Thanked 3 Times in 3 Posts iTrader Rating: (4/100% )	Rev limit was something I was planning to look into after everything else was sorted out. Good to know there might be a fairly easy solution. Mind if I ask how you figured out base frequency? Was it printed on the crystal housing? I've played with the data logging features for: Timing, airflow (map) and injector duty cycle. Still just figuring out the emanage so I will be comfortable tuning with it later. Will be working on the wbo2 datalog hack for it if I ever get more time. I've heard good things about the SMT's, seems to be working well for you.

05-21-2008, 04:04 PM	#20 (permalink)
PearlJammzz Cage Fighter Join Date: Feb 2006 Posts: 1,866 Thanks: 8 Thanked 64 Times in 61 Posts My Google Map iTrader Rating: (3/100% )	Rode in the car last night, it felt nice. Felt liek the damn thing was going to break the way it revved so high lol. Dyno, then turbo, then dyno, then 5vz