Honda Prelude Forum
 
Go Back   Honda Prelude Forum > Tech-Talk > 5th Gen Honda Prelude

Thread Title
vtec q&a

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 08-22-2010, 05:52 PM
I'm New
 
Join Date: Aug 2010
Posts: 10
iTrader: (0)
captainvtec is on a distinguished road
vtec q&a

hi ive got a 1998 prelude 2.2 vti vtec and would like to know what i need to do or buy to get the vtec to kick in at lower revs then the 5.5k mark.

any help would be great

cheers chris
Reply With Quote
  #2 (permalink)  
Old 08-22-2010, 06:23 PM
Platinum Member
 
Join Date: Aug 2010
Posts: 1,092
iTrader: (3)
element600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond repute
Re: vtec q&a

apexi vafc and neos work great for making vtec come on early and tuning out the rich spot in vtec also . anything below 5 for vtec is a waste actually cost you hp . cams just to aggressive for rpms lower than that . i like the neo the best has more tunning points and its color screen .
Reply With Quote
  #3 (permalink)  
Old 08-22-2010, 06:26 PM
I'm New
 
Join Date: Aug 2010
Posts: 10
iTrader: (0)
captainvtec is on a distinguished road
Re: vtec q&a

ok cheer smate i'll look in to it :)
Reply With Quote
  #4 (permalink)  
Old 08-22-2010, 07:32 PM
soto2635's Avatar
Platinum Member
 
Join Date: Nov 2006
Location: strong island,ny
Posts: 2,533
iTrader: (6)
soto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond reputesoto2635 has a reputation beyond repute
Send a message via AIM to soto2635
Re: vtec q&a

apexi vafc basically is it
__________________
N.Y.P.O.C.
Everything you need to know bout the 5spd swap I MEAN EVERYTHING!!! CLICK Here

FAQ's auto tranny failure click HERE and click HERE

Reply With Quote
  #5 (permalink)  
Old 08-22-2010, 07:57 PM
Vipers4Life's Avatar
Internet Badass

 
Join Date: May 2009
Posts: 1,492
iTrader: (1)
Vipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond reputeVipers4Life has a reputation beyond repute
Re: vtec q&a

Or you can get a chipped ecu and have it set at a lower engagement point.
__________________

http://www.preludezone.com/members-r...e-01-base.html
Check out my ride here!^^
Quote:
Originally Posted by twokexlv6coupe View Post
if it's knocking, don't answer it. it's prolly nothing but bad news bears.
Quote:
Originally Posted by Brash22 View Post
As much as I'd love to see this done, I offer you the same comment I offer everybody else: There's no point in being the first to do something if you're second across the finish line.
Reply With Quote
  #6 (permalink)  
Old 08-22-2010, 11:05 PM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: vtec q&a

Quote:
anything below 5 for vtec is a waste actually cost you hp .
How can you say that when every motor is different? The only proper way to find the optimal VTEC engagement point is this: You set the engagement extremely low, like 3k RPMS, make a pull on the dyno. Then, you set it high , like 7k RPMS, then make a pull on the dyno. You overlap the two graphs, and wherever the 2 torque curves cross is your optimal VTEC engagement point.
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #7 (permalink)  
Old 08-22-2010, 11:15 PM
Junior Member
 
Join Date: Aug 2010
Posts: 51
iTrader: (0)
lude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond reputelude98_sh has a reputation beyond repute
Re: vtec q&a

cool thats awesome
Reply With Quote
  #8 (permalink)  
Old 08-22-2010, 11:16 PM
Brash's Avatar
Super Roo mod

 
Join Date: Jan 2007
Location: The Lucky Country
Posts: 5,846
iTrader: (2)
Brash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond reputeBrash has a reputation beyond repute
Re: vtec q&a

element600rr's speaking generally. And unless the engine is worked to some degree, you'll find that the stock engagement of around 5200rpm is where it will need to be anyway.
__________________

Request for rep = NO REP. Kthxbi. IF YOU ASK A STUPID QUESTION, OR MAKE A STUPID STATEMENT, YOU WILL GET A STUPID ANSWER!

FIFTH GENERATION RESOURCE GUIDE <<<-- USE IT, USE IT, USE IT!
Reply With Quote
  #9 (permalink)  
Old 08-22-2010, 11:25 PM
ROCKtavius's Avatar
Bronze Member
 
Join Date: May 2010
Location: Georgia
Posts: 225
iTrader: (0)
ROCKtavius is on a distinguished road
Re: vtec q&a

i say get it set to like 1500 rpms that would be ballin! like that 1 kid from S3 Magazine with that FD with enough mods to have like 600hp but he detuned his car to 300hp just to piss ppl off. lol that guy owns! but seriously dont though engine probs 4 sure...lol
Reply With Quote
  #10 (permalink)  
Old 08-22-2010, 11:31 PM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: vtec q&a

Quote:
element600rr's speaking generally. And unless the engine is worked to some degree, you'll find that the stock engagement of around 5200rpm is where it will need to be anyway.
Anytime you change the VE of a motor, your VTEC engagement and fuel/ignition maps will need to be changed to get the most out of them. Even small things like a CAI will change an engine's VE. So I agree and disagree I guess...lol
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #11 (permalink)  
Old 08-23-2010, 12:26 AM
fezz_tec's Avatar
Silver Member
 
Join Date: Nov 2008
Posts: 313
iTrader: (0)
fezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond repute
Re: vtec q&a

you can run a switch, and engage it any time you want!
Reply With Quote
  #12 (permalink)  
Old 08-23-2010, 12:30 AM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: vtec q&a

lol instead of nitrous button just have a VTAK button
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #13 (permalink)  
Old 08-23-2010, 12:40 AM
fezz_tec's Avatar
Silver Member
 
Join Date: Nov 2008
Posts: 313
iTrader: (0)
fezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond reputefezz_tec has a reputation beyond repute
Re: vtec q&a

ive seen it done,


bad for the engine though
Reply With Quote
  #14 (permalink)  
Old 08-23-2010, 06:56 PM
Platinum Member
 
Join Date: Aug 2010
Posts: 1,092
iTrader: (3)
element600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond repute
Re: vtec q&a

Quote:
Originally Posted by dbd6604 View Post
How can you say that when every motor is different? The only proper way to find the optimal VTEC engagement point is this: You set the engagement extremely low, like 3k RPMS, make a pull on the dyno. Then, you set it high , like 7k RPMS, then make a pull on the dyno. You overlap the two graphs, and wherever the 2 torque curves cross is your optimal VTEC engagement point.
i can say this because ive tunned an assload of hondas of varying degrees and i have yet to see anyone make positive power numbers under 4800 not one . most all of your honda mods will aim the power band into the higher rpms . ive done this on stock and ive done this on built motors and nitrous on my own motor even with the nitrous there was a dip whenever the vtev was set below 4800 . im sure some smart ass could build a motor to make more power on 3k vtec but no one ive ever met . by the way another way to set optimal vtec is to back it down a little at a time ( the graph overlays every pass ) and you can see right where you loose hp . guess where its at on damn near every motor ive done at just around 5k . not trying to be an asshole but i know what im talking about on this one ..
Reply With Quote
  #15 (permalink)  
Old 08-23-2010, 07:02 PM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: vtec q&a

I didn't say you didn't know what you were talking about.

Quote:
by the way another way to set optimal vtec is to back it down a little at a time ( the graph overlays every pass ) and you can see right where you loose hp .
What's the point of doing this when you could just use the other method, make 2 passes, set your engagement and be done with it? I'm not trying to be an asshole, just curious.
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #16 (permalink)  
Old 08-23-2010, 07:36 PM
Platinum Member
 
Join Date: Aug 2010
Posts: 1,092
iTrader: (3)
element600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond repute
Re: vtec q&a

Quote:
Originally Posted by dbd6604 View Post
I didn't say you didn't know what you were talking about.



What's the point of doing this when you could just use the other method, make 2 passes, set your engagement and be done with it? I'm not trying to be an asshole, just curious.
just easyer to find that hiccup point . i know where it usually lies and it only takes 2 passes to find it . not to mention easyer to trim fuel this way . unless you were to trim fuel all the way down or up each time ( 3 k to 7 k ) perfect the first time its still gonna take more than 2 passes with this method .
Reply With Quote
  #17 (permalink)  
Old 08-23-2010, 07:50 PM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: vtec q&a

Well the reason I was saying what I said was, the OP was only asking about changing his VTEC engagement point, not about changing any fuel or ignition maps.
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #18 (permalink)  
Old 08-24-2010, 12:18 AM
ROCKtavius's Avatar
Bronze Member
 
Join Date: May 2010
Location: Georgia
Posts: 225
iTrader: (0)
ROCKtavius is on a distinguished road
Re: vtec q&a

Quote:
Originally Posted by element600rr View Post
i can say this because ive tunned an assload of hondas of varying degrees and i have yet to see anyone make positive power numbers under 4800 not one . most all of your honda mods will aim the power band into the higher rpms . ive done this on stock and ive done this on built motors and nitrous on my own motor even with the nitrous there was a dip whenever the vtev was set below 4800 . im sure some smart ass could build a motor to make more power on 3k vtec but no one ive ever met . by the way another way to set optimal vtec is to back it down a little at a time ( the graph overlays every pass ) and you can see right where you loose hp . guess where its at on damn near every motor ive done at just around 5k . not trying to be an asshole but i know what im talking about on this one ..
u know what? ur alright buddy. stick around. well said
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
When does Vtec kick in on an H23 vtec. Bluepreludedude General Tech Talk 12 07-28-2010 11:11 PM
Late VTEC engaging leads to no VTEC, CEL, and ATTS lights... sightnsound General Tech Talk 7 08-04-2009 05:37 PM
VTEC Controller Problems, Vtec dont work!! TruJdm 4th Gen Honda Prelude 1 07-09-2009 10:02 AM
93 prelude vtec vs del sol vtec turbo 93preludevtec General Tech Talk 2 03-09-2009 05:29 PM
g23 vtec H_series94 4th Gen Honda Prelude 2 02-19-2009 10:08 PM


All times are GMT -4. The time now is 01:22 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors


Copyright © 2006-2009 PreludeZone.com All Rights Reserved.