Honda Prelude Forum
 
Go Back   Honda Prelude Forum > Tech-Talk > 4th Gen Honda Prelude

Thread Title
F20A4 SOHC

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 03-10-2011, 05:56 PM
I'm New
 
Join Date: Mar 2011
Location: Netherlands
Posts: 5
iTrader: (0)
geitema is on a distinguished road
Send a message via MSN to geitema
F20A4 SOHC

Hi all

The F20A4 is dyno'd at 134Hp and 189Nm but it take's 9,2 seconds to take the heavy prelude to 100Kmh.

Now this is not fast so i thought why not tune the sohc to make decent power.
I`m not going to take the engine apart so everything has to be bolt on and im staying N/A

The thing i've read about tuning this engine is the intake manifold swap, The h23 dualstage manifold shoud fit but does someone know if this is gonna be p&p or do i need to modify parts of both manifolds to make it fit.

Other than that do i need larger injectors?

Now the intake will be a short ram with Blox velocity stack filter surrounded by a airbox.

The exhaust will be a 4-2-1 manifold from megan racing or another brand but its reasonably priced.
After that there will be a catalyst convertor and a Greddy SP2 catback system.

Will this combination work and make some decent power or shoud i change the setup?
Reply With Quote
  #2 (permalink)  
Old 05-29-2011, 03:16 AM
Not So New
 
Join Date: Jul 2010
Posts: 32
iTrader: (0)
Underrump is on a distinguished road
Re: F20A4 SOHC

I too would like to know this
Reply With Quote
  #3 (permalink)  
Old 05-29-2011, 04:45 PM
naj3000's Avatar
Platinum Member
 
Join Date: Jun 2009
Location: tulsa OK
Posts: 1,401
iTrader: (1)
naj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond reputenaj3000 has a reputation beyond repute
Send a message via AIM to naj3000 Send a message via Yahoo to naj3000
Re: F20A4 SOHC

what do you define as decent power? and you may also want to look into a header with a 2.5 collector with 2.5in exs piping. A cam weather it be a regrind or an after market cam will help you after you bolt ons are on
__________________
life's a bitch? Naw man, its just the people in it.




The relationship between me and the Airforce.
Reply With Quote
  #4 (permalink)  
Old 05-30-2011, 03:25 PM
Naitomea's Avatar
I'm New
 
Join Date: May 2011
Location: Luxemburg
Posts: 10
iTrader: (0)
Naitomea is on a distinguished road
Re: F20A4 SOHC

Actually the first step with the intake that works
but you need to make some little changes with the return hoses and some other.

i was thinking to do the same, but i read on an german forum, every time you take the
battery off, you need to pull the radio fuse out for 10 sec and then it works.
so if you can read german, try on some german forums.
the car sould have at that moment approx 160hp and it should be faster than the
european f23 engine.

Try this: http://www.hondapower.de/forum/showt...SB-auf-BB2-ASB

and thats the most powerful change or tune setup that you can make.
i got my self a bb3 and i cant find some engine tune parts, (cams,piston.....)

Last edited by Naitomea; 05-30-2011 at 03:31 PM.
Reply With Quote
  #5 (permalink)  
Old 05-30-2011, 04:09 PM
Not So New
 
Join Date: Jul 2010
Posts: 32
iTrader: (0)
Underrump is on a distinguished road
Re: F20A4 SOHC

What sort of difference does swapping the f20a4 intake mannie for the h23a2 one and is it plug and play?
Reply With Quote
  #6 (permalink)  
Old 05-31-2011, 02:53 PM
Naitomea's Avatar
I'm New
 
Join Date: May 2011
Location: Luxemburg
Posts: 10
iTrader: (0)
Naitomea is on a distinguished road
Re: F20A4 SOHC

the intake from the h23 is bigger than the one from the f20.
and if you look at the honda accord from the same year, this one had the h23 intake.
you get more air in the burning chamber. + use an fuel regulator.
the only prob with that is that the h23 has some valves in the intake, the f20 not.
so the wiring with the vakuum lines must be correct, or else it will not run properly
Reply With Quote
  #7 (permalink)  
Old 05-31-2011, 03:29 PM
Not So New
 
Join Date: Jul 2010
Posts: 32
iTrader: (0)
Underrump is on a distinguished road
Re: F20A4 SOHC

Thanks mate, i have seached high and low for an answer too this and not found one until now. Could you eleborate a bit more on the correction of this "valve" and vacuum lines for me? Im really keen to do this but as i have nothing to go from and no pictures to assist me im still unsure
Reply With Quote
  #8 (permalink)  
Old 06-01-2011, 04:38 PM
Naitomea's Avatar
I'm New
 
Join Date: May 2011
Location: Luxemburg
Posts: 10
iTrader: (0)
Naitomea is on a distinguished road
Re: F20A4 SOHC

I will try too find some thing, i keep you informed.
Reply With Quote
  #9 (permalink)  
Old 06-01-2011, 06:46 PM
Not So New
 
Join Date: Jul 2010
Posts: 32
iTrader: (0)
Underrump is on a distinguished road
Re: F20A4 SOHC

Thanks mate
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
F20A4 SOHC questions geitema DIY Engine 1 03-10-2011 05:15 PM
F20A4 camshaft! KCivic 4th Gen Honda Prelude 1 03-10-2011 02:09 AM
F20A4 + H23 +F22 ... is possible!?!? KCivic 4th Gen Honda Prelude 2 11-20-2010 06:43 AM
Prelude bb9 f20a4 Honda4lifeprelude 5th Gen Honda Prelude 2 04-12-2010 11:03 AM
94 F20A4 restoration d_koev Auto Showoff 16 04-27-2009 11:02 PM


All times are GMT -4. The time now is 11:51 PM.



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.