V-Tech Controller

Tikolx333 · 05-30-2006, 02:29 PM

Do you think there will be one coming out soon, and would there be any negative effects on a R18 to lower the V-Tech kick in time from 5300rpm to lets say 4000? Is there anything like that out there. Sorry for the noob question.

NoBottleJustThrottle · 05-30-2006, 03:15 PM

Well, first...its VTEC, not vtech. Vtech is a type of phone. Sorry, really dont mean to sound like a dick...just brain washed to bring that up from the years at Honda-Tech.
Second...there will be piggy back systems that you will be able to use on the R18 eventually. Something like a product from Apex'i. They have VTEC controllers. The problem is, is that you arent going to see many gains at all on the R18. The VTEC in the R18 is for fuel efficiency, unlike on the K20Z3 or other DOHC i/VTEC systems. Lowering the VTEC "crossover" on a SOHC motor wont be noticeable. You wont get that kick like you do in the DOHC motor.
Lowering the VTEC crossover on the DOHC motor is completely different. Their VTEC system work a bit differently...with the DOHC motor when VTEC engauges, the bigger lobes on the exhaust cams are activated drawing in more air into the motor. So lowering that activation will net power for them...not so much for our cars. The Hondata system for the Z3 gives 20+ hp because of this...doing so on an R18 with some other system will net maybe 3 hp.
If you want to go fast, get a turbo when they come out. If you want to stay NA, it might be time to either think of a different car, or a motor swap. It will be a VERY long time until someone does some half way decent number NA on this motor...if ever.

Tikolx333 · 05-30-2006, 04:10 PM

Quote:

Originally Posted by NoBottleJustThrottle

Well, first...its VTEC, not vtech. Vtech is a type of phone. Sorry, really dont mean to sound like a dick...just brain washed to bring that up from the years at Honda-Tech.
Second...there will be piggy back systems that you will be able to use on the R18 eventually. Something like a product from Apex'i. They have VTEC controllers. The problem is, is that you arent going to see many gains at all on the R18. The VTEC in the R18 is for fuel efficiency, unlike on the K20Z3 or other DOHC i/VTEC systems. Lowering the VTEC "crossover" on a SOHC motor wont be noticeable. You wont get that kick like you do in the DOHC motor.
Lowering the VTEC crossover on the DOHC motor is completely different. Their VTEC system work a bit differently...with the DOHC motor when VTEC engauges, the bigger lobes on the exhaust cams are activated drawing in more air into the motor. So lowering that activation will net power for them...not so much for our cars. The Hondata system for the Z3 gives 20+ hp because of this...doing so on an R18 with some other system will net maybe 3 hp.
If you want to go fast, get a turbo when they come out. If you want to stay NA, it might be time to either think of a different car, or a motor swap. It will be a VERY long time until someone does some half way decent number NA on this motor...if ever.

Hey thanx, LOL that would explain why the Vtech search was not working, thanx. But well explained, yeah looks like Turbo is my option for some real HP. CANT WAIT

That_Si_Guy · 06-01-2006, 05:45 PM

Well the Si is getting the new ECU reflash from hondata that lowers the vtec rpm to 4500k I believe and also boosts the redline to 8600 rpm. Not sure about the 1.8 though

That_Si_Guy · 06-01-2006, 05:46 PM

Here's the link http://www.hondata.com/reflash_06_civicsi.html

ballplaya4237 · 06-01-2006, 06:47 PM

Damn...8600RPM..that's pretty badass...

Where is the maximum horespower in the RPM Band going to be? 8600 rpm? and if so...how much HP will it be?

That_Si_Guy · 06-01-2006, 07:33 PM

I took this from the hondata link I posted above, this should answer your question.

"Power is gained in the midrange from 4700rpm to 6300 rpm. Power gains above 6500 rpm are negligible, although the higher rev limit will raise average power a little."

05-30-2006, 02:29 PM	#1 (permalink)
Tikolx333 Senior Member Join Date: Apr 2006 Location: Florida Age: 22 Posts: 842 iTrader: 0 / 0%	VTEC Controller Do you think there will be one coming out soon, and would there be any negative effects on a R18 to lower the V-Tech kick in time from 5300rpm to lets say 4000? Is there anything like that out there. Sorry for the noob question. Last edited by Tikolx333; 05-30-2006 at 04:13 PM.

06-01-2006, 05:46 PM	#5 (permalink)
That_Si_Guy Senior Member Join Date: May 2006 Location: Boston Age: 25 Posts: 456 iTrader: 0 / 0%	Here's the link http://www.hondata.com/reflash_06_civicsi.html Last edited by That_Si_Guy; 06-01-2006 at 05:51 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
H tech or S tech??	ahslimjim	Suspension and Brakes	25	03-30-2007 02:02 PM
Tein S. Tech	Htuner34	Suspension and Brakes	15	05-13-2006 02:01 AM
anyone have any interest in honda tech shirt/pants	webby	Garage	4	03-03-2006 01:32 PM

05-30-2006, 03:15 PM	#2 (permalink)
NoBottleJustThrottle Senior Member Join Date: May 2006 Location: Tustin, CA Age: 25 Posts: 336 iTrader: 0 / 0%	Well, first...its VTEC, not vtech. Vtech is a type of phone. Sorry, really dont mean to sound like a dick...just brain washed to bring that up from the years at Honda-Tech. Second...there will be piggy back systems that you will be able to use on the R18 eventually. Something like a product from Apex'i. They have VTEC controllers. The problem is, is that you arent going to see many gains at all on the R18. The VTEC in the R18 is for fuel efficiency, unlike on the K20Z3 or other DOHC i/VTEC systems. Lowering the VTEC "crossover" on a SOHC motor wont be noticeable. You wont get that kick like you do in the DOHC motor. Lowering the VTEC crossover on the DOHC motor is completely different. Their VTEC system work a bit differently...with the DOHC motor when VTEC engauges, the bigger lobes on the exhaust cams are activated drawing in more air into the motor. So lowering that activation will net power for them...not so much for our cars. The Hondata system for the Z3 gives 20+ hp because of this...doing so on an R18 with some other system will net maybe 3 hp. If you want to go fast, get a turbo when they come out. If you want to stay NA, it might be time to either think of a different car, or a motor swap. It will be a VERY long time until someone does some half way decent number NA on this motor...if ever.

06-01-2006, 05:45 PM	#4 (permalink)
That_Si_Guy Senior Member Join Date: May 2006 Location: Boston Age: 25 Posts: 456 iTrader: 0 / 0%	Well the Si is getting the new ECU reflash from hondata that lowers the vtec rpm to 4500k I believe and also boosts the redline to 8600 rpm. Not sure about the 1.8 though

06-01-2006, 06:47 PM	#6 (permalink)
ballplaya4237 Senior Member Join Date: Nov 2005 Age: 19 Posts: 569 iTrader: 1 / 100%	Damn...8600RPM..that's pretty badass... Where is the maximum horespower in the RPM Band going to be? 8600 rpm? and if so...how much HP will it be?

06-01-2006, 07:33 PM	#7 (permalink)
That_Si_Guy Senior Member Join Date: May 2006 Location: Boston Age: 25 Posts: 456 iTrader: 0 / 0%	I took this from the hondata link I posted above, this should answer your question. "Power is gained in the midrange from 4700rpm to 6300 rpm. Power gains above 6500 rpm are negligible, although the higher rev limit will raise average power a little."