It is currently Tue Dec 11, 2018 10:41 am

All times are UTC [ DST ]





Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject: Which would be better??
PostPosted: Sun Jul 05, 2009 12:23 am 
Offline
Non-Member
User avatar

Joined: Thu Sep 25, 2003 10:40 am
Posts: 111
Location: Totnes
Just want to no your opinions.

would it be ok to run my car at 11:1 and what would be the bhp increase when im running 9.6:1 at the min??


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 05, 2009 4:53 am 
Offline
SWC Member

Joined: Mon Jun 12, 2006 11:10 pm
Posts: 925
Location: Paignton
im afraid thats a bit vague mate, you'll have to be more specific

_________________
Image

Nissan 200sx S13
Norris Designs engine, Garrett T28R, Big FMIC, Blitz Nur-Spec, K&N 57i, Walbro 255LPH, Horsham developments fuelling
Loads of suspension work with a mig-spec diff.
RR@ 284.7bhp on 04/2009


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 05, 2009 11:45 am 
Offline
Non-Member
User avatar

Joined: Tue Apr 04, 2006 11:10 pm
Posts: 372
Location: in torbay somewhere...
despite what you run the car on, its a still a standard engine (unless you suddenly changed things) so the change will be so minimal you'd barely notice it.

_________________
230BHP saxo vts turbo


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 05, 2009 2:41 pm 
Offline
Non-Member
User avatar

Joined: Thu Sep 25, 2003 10:40 am
Posts: 111
Location: Totnes
yea sorry lol. its a honda d series. i've got a d15z8 and a d16y3 wanna mix n match them to get the most power. hope that helps a lil more.


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 05, 2009 8:28 pm 
Offline
Non-Member
User avatar

Joined: Thu Mar 30, 2006 8:49 am
Posts: 153
Location: Brixham
Upping the compression ratio will increase power, as for how much power it's difficult to say 5-10 bhp possibly with other modifications to match. Like Lee said unless your going to put work into other areas of the engine, increasing the CR. on anotherwise standard engine is unlikely to net big gains.

I would go for a tubular manifold, a higher lift cam and head work before messing with the compression ratio.

You'll need to look into ignition timing and how strong the internals of the engine are (although honda engine are usually very strong) otherwise the likely hood is you'll get detination and kill your engine quickly or simply blow alot of head gaskets.

Although what your suggesting is on other engines a tried and test way of extracting more power. I have heard of 1.3 cvh pistons being fitted into a 1.6 cvh engine inorder to raise the compression ratio. I would recommend asking the same question on a Honda owners forum, you'll probably find someone else who as done the same thing before!

_________________
Image

Ford Sierra GLS - Gaz coilovers, Welded diff and NATO green livery!


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 05, 2009 11:24 pm 
Offline
SWC Member

Joined: Mon Jun 12, 2006 11:10 pm
Posts: 925
Location: Paignton
Robin raises a couple of very good points.

I'm afraid mate I know nothing of Honda engines....so the engine codes of the two won't help me any. You'll need to give some more indepth information about them, and what sort of thing you're hoping to achieve!

_________________
Image

Nissan 200sx S13
Norris Designs engine, Garrett T28R, Big FMIC, Blitz Nur-Spec, K&N 57i, Walbro 255LPH, Horsham developments fuelling
Loads of suspension work with a mig-spec diff.
RR@ 284.7bhp on 04/2009


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron