Question about compression - HondaClub.com

kwandi · 11-23-2007, 05:06 AM

On the 2.4l engine in the 07 accords, how can I bump the compression up from 9:7:1 to 10:5:1 thats in the 08 accord. Is honda just reprogramming the ecu's or are the two engines different with certain components. Also, what does honda do to increase the rev limiter on the engines and what should I do?

**DriftMaster** · 11-24-2007, 11:43 PM

Get a computer programmer... that way you can remove the limiter completely.

NiceTeggy · 11-25-2007, 01:35 AM

There are many ways to change the compression in a car. The easiest, a thinner head gasket, or a set of pistons. Also you can mill the head and use a thinner head gasket, this should set your com ratio to what you probably want, if not the pistons alone would do the job.
Also, the k24 found on tsx have higher compression.

**TJ213** · 11-25-2007, 12:02 PM

Quote:

Originally Posted by DriftMaster

Get a computer programmer... that way you can remove the limiter completely.

Don't do that, you can raise the limiter, but removing it can end very badly, limiters are there to help keep your engine from exploding.

Why do you want to raise your compression to that of the new accord's? Its not going to give you new-accord power. The new engine uses an updated i-VTEC system and is half a liter bigger, among other changes.

Phat_TL · 12-05-2007, 03:47 PM

If you would like to raise the compression the easiest and most reliable way is to change your pistons. Make sure the specs are correct before you purchase. If you plan on getting a turbo I wouldnt even change the pistons. But if you arent you should go a little higher with the compression anyways. Thats my opinion. Well good luck.

11-23-2007, 05:06 AM	#1 (permalink)
kwandi Junior Member Join Date: Nov 2007 Location: atlanta, Georgia United States Posts: 3	Question about compression On the 2.4l engine in the 07 accords, how can I bump the compression up from 9:7:1 to 10:5:1 thats in the 08 accord. Is honda just reprogramming the ecu's or are the two engines different with certain components. Also, what does honda do to increase the rev limiter on the engines and what should I do? Last edited by kwandi; 11-23-2007 at 05:20 AM.

11-24-2007, 11:43 PM	#2 (permalink)
DriftMaster All rattle, no roar. Join Date: Oct 2007 Location: Shediac, New Brunswick Canada Posts: 1,163	Get a computer programmer... that way you can remove the limiter completely. __________________ 92 Honda Accord [Drag/Track Project] CB7 Reppin' Yo 17.59 @ 79.09mph 2.65 @ 60ft Racing is not an addiction, it's a lifestyle choice.

12-05-2007, 03:47 PM	#5 (permalink)
Phat_TL Junior Member Join Date: Oct 2007 Location: Columbia, Missouri United States Posts: 6	Compression If you would like to raise the compression the easiest and most reliable way is to change your pistons. Make sure the specs are correct before you purchase. If you plan on getting a turbo I wouldnt even change the pistons. But if you arent you should go a little higher with the compression anyways. Thats my opinion. Well good luck.

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

11-25-2007, 01:35 AM	#3 (permalink)
NiceTeggy Member Join Date: Dec 2006 Location: Bronx, New York United States Posts: 71	There are many ways to change the compression in a car. The easiest, a thinner head gasket, or a set of pistons. Also you can mill the head and use a thinner head gasket, this should set your com ratio to what you probably want, if not the pistons alone would do the job. Also, the k24 found on tsx have higher compression.