Quick question......10.6 compression too high?
10-25-2006, 11:10 AM
#1
Honda-Tech Member
Thread Starter
Join Date: Apr 2006
Location: Iowa
Posts: 1,550
Likes: 0
Received 0 Likes
on
0 Posts
Quick question......10.6 compression too high?
10.6 - 10.8 compression too high for turbo? 5-7 lbs daily driver, weekend 8-12 lbs. Good tuning with Hondata S200.
10-25-2006, 11:27 AM
#2
Join Date: Jun 2003
Location: southside, NJ
Posts: 6,319
Likes: 0
Received 0 Likes
on
0 Posts
Re: Quick question......10.6 compression too high? (Spoolin4u)
B16's are in the low 10.x's stock. So honestly, its all in the tune.
Edit Curious why the s200 instead of the s300?
Edit Curious why the s200 instead of the s300?
10-25-2006, 07:59 PM
#4
Honda-Tech Member
Join Date: May 2005
Location: Palmdale, Ca
Posts: 2,652
Likes: 0
Received 0 Likes
on
0 Posts
Re: Quick question......10.6 compression too high? (Spoolin4u)
yea just dont push it up too much.
People have boosted stock Itr's to 8-10lbs. 11:1 compression.
Supercharged and turbo charged.
Use cold plugs and gap them a tad smaller and get it tuned.
People have boosted stock Itr's to 8-10lbs. 11:1 compression.
Supercharged and turbo charged.
Use cold plugs and gap them a tad smaller and get it tuned.
10-25-2006, 09:20 PM
#6
Member
Join Date: Sep 2004
Location: louisiana, USA
Posts: 1,258
Likes: 0
Received 0 Likes
on
0 Posts
i've got the jdm gsr motor which is 10.6:1. Boosting 9 lbs. But this car i only drive maybe once a week. And i am constantly tuning it to make sure its always running perfect
Trending Topics
10-25-2006, 11:17 PM
#9
Junior Member
Join Date: Nov 2005
Location: In The Backroads
Posts: 383
Likes: 0
Received 0 Likes
on
0 Posts
Re: Quick question......10.6 compression too high? (exospeedAMcrx)
stock ls. stock bore i guess, i was just woundering if i bumped the compression up to 10.5 if it would help spool up quicker? Is there a way i can make it spool up faster?
10-25-2006, 11:21 PM
#10
Honda-Tech Member
Join Date: Mar 2002
Location: www.exospeed.com, Valencia, CA
Posts: 12,899
Likes: 0
Received 1 Like
on
1 Post
Re: Quick question......10.6 compression too high? (SOHC_me)
The reason I ask is. Theres a difference between:
D16 75mm 10.6:1
vs
B18 81mm 10.6:1
vs
B18 84mm 10.6:1
vs
B16 81mm 10.6:1
vs
B16 84mm 10.6:1
Piston design changes with each of te motors, Bore size and the type of combination with the cylinder heads.
We usually run 84mm Flat top 10.9:1 pistons on alot of our race motors. Its still a good design for turbo due to its flat top design. You just want to stay away from the more Dome style pistons for turbo.
10.6:1 isnt really a big compression so in general its a good compression for turbo.
D16 75mm 10.6:1
vs
B18 81mm 10.6:1
vs
B18 84mm 10.6:1
vs
B16 81mm 10.6:1
vs
B16 84mm 10.6:1
Piston design changes with each of te motors, Bore size and the type of combination with the cylinder heads.
We usually run 84mm Flat top 10.9:1 pistons on alot of our race motors. Its still a good design for turbo due to its flat top design. You just want to stay away from the more Dome style pistons for turbo.
10.6:1 isnt really a big compression so in general its a good compression for turbo.
10-25-2006, 11:25 PM
#11
Junior Member
Join Date: Nov 2005
Location: In The Backroads
Posts: 383
Likes: 0
Received 0 Likes
on
0 Posts
Re: Quick question......10.6 compression too high? (exospeedAMcrx)
reason asking bc a friend has cp pistions that give me a 10:5:1 cr, thats just what he told me, i don't know if it does, it wols be going into a totaly stock ls engine, so i don't know if those pistions have a lot of dome or not, but thanks for the info
10-26-2006, 07:48 AM
#12
Honda-Tech Member
Join Date: Feb 2003
Location: Margaritaville
Posts: 7,355
Likes: 0
Received 0 Likes
on
0 Posts
Re: Quick question......10.6 compression too high? (SOHC_me)
I'm running 10.5:1 SRP pistons in my D16, but when I calculated the compression out it came out to more like 10.1:1 for some reason. It's working out good so far at 14 psi, see sig. I'll eventually raise the boost with a race gas tune.
10-26-2006, 01:24 PM
#17
Munkyw3rkz.webs.com
Join Date: Jun 2003
Location: PUTTIN UR MOUTH ON CURBZ CPT, SoCal
Posts: 22,166
Likes: 0
Received 1 Like
on
1 Post
Re: (Jdmcivichb!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jdmcivichb! »</TD></TR><TR><TD CLASS="quote">Anyone have any high comp setups they would like to share?</TD></TR></TABLE>
i will soon...
i will soon...
10-26-2006, 01:32 PM
#18
Honda-Tech Member
Join Date: Dec 2005
Location: Centerville, Utah, USA
Posts: 1,049
Likes: 0
Received 0 Likes
on
0 Posts
Mr Green earlier on this year had his motor at 12.2-12.5 compression with 40 psi... destoryed a piston, compressed into two little *****. Went way lean due to a bad wideband. $300 part cost him $5,000.
10-27-2006, 12:32 PM
#20
Munkyw3rkz.webs.com
Join Date: Jun 2003
Location: PUTTIN UR MOUTH ON CURBZ CPT, SoCal
Posts: 22,166
Likes: 0
Received 1 Like
on
1 Post
Re: (turboteener)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboteener »</TD></TR><TR><TD CLASS="quote">I am running something on the order of 11.1 on my d16. It runs 13psi and a 230psi of cranking pressure. Haven't dynoed it yet. I want a bigger turbo first.</TD></TR></TABLE>
hows that working for you??
i goign with a 10:5 for my Z6
hows that working for you??
i goign with a 10:5 for my Z6
10-28-2006, 06:41 AM
#21
Banned
Join Date: Nov 2002
Location: AL
Posts: 2,019
Likes: 0
Received 0 Likes
on
0 Posts
I haven't had any problems with it. I did have a couple of issues with the pistons hitting the heads when I mocked up the engine. After opening the chambers and equalizing the quench pads, problem solved. It is tougher to tune timing though. You have to be very conservative to start out and work slowly.
I want to up the boost but this turbo is so far out of its efficiency range that I doubt it would do anything for me.
I want to up the boost but this turbo is so far out of its efficiency range that I doubt it would do anything for me.
10-28-2006, 12:21 PM
#23
Honda-Tech Member
Join Date: Jun 2005
Location: /\/\ |)
Posts: 1,470
Likes: 0
Received 0 Likes
on
0 Posts
Re: (racin jasin R)
nothing at all wrong with boosting a 10.5:1 motor, i wouldnt recommend it if youre looking to run it daily on the street, because 9:1 or 9.5:1 pistons are just a cheap and available, and less prone to detonation. Just think, one bad tank of gas and your built motor is gone, what you have to look at is how often youll be driving this vehicle, and what youll be doing with it 
good luck
good luck
Thread
Thread Starter
Forum
Replies
Last Post
s0liDyNe
Honda CRX / EF Civic (1988 - 1991)
7
07-19-2003 10:24 PM
