I may look like an idiot asking this..

I have heard sooo many different stories about ITR engine specs. so im just going to ask the questions to you guys...

What is the history on the B18c? I understand that there is a 98 usdm itr and i guess a 99+ usdm itr.
Is the jdm 98 B18c specs diff than the usdm b18 specs. and so forth for the 99+.
I would just like to find a specifications chart of the entire engine for ALL the usdm itr engines and ALL the jdm engines. Maybe im not looking in the rights places, sorry if thats the case..

Thanks in advance

 

http://www.integratyper.org/specs/master_comparison.htm

 

That's a well put together chart. Didn't know the registry had all that extra information.

 

Some of the information on the AUDM DC2R is incorrect....

For interior colours, there was a Yellow Recaro option on the yellow cars, not sure what dates that was available... also CW cars all had red Recaro's. Those that didn't were swapped by dealers with black seats from other cars.

I believe the rev limit on the AUDM cars is 8600rpm and I am quite certain that this is the same for JDM B18C R motors. I don't believe that they rev to 8900rpm. The tacho may show that it does but I consider this to be tacho inaccuracy.

Also gear ratios and final drive for AUDM DC2R's (all years) are the same as JDM 98spec.

 

Please PM Tyrant_007 to have it corrected.

 

Damn I honestly searched forever for a chart like this. Much appreciated!

Does anyone happen to know the piston compression height (distance from centerline of wrist pin to the top of piston) and the deck height (distance from centerline of main bearing to the block deck) for the 98 spec B18c?

But also how can I tell the difference within the 2 diff spec b18c? Is there a specific manifold design that I need looking for?

 

My ITR is basically standard (exhaust only) and bounces off the limiter at what looks like 9000 but could just be 8900.

 

I need to update that. I got most of my JDM info straight from Honda's factbook. I put that comparison together when I had 'some' sales brochures and press material. I have 'most' brochures now, and just need to spend some time adding to and updating it. Kinda forgot about it.

 

Since when did the 96 spec JDM B18C have lower compression than the 98 spec? That chart shows 11.0:1 vs 11.1:1. I thought both motors had the same pistons...

 

I have added yellow to the interior color for the yellow caRs. It isn't on the brochure that I have, but I know it was an option at one point (hopefully not limited to the 'limited edition' dealer installed package). I left the red and black as an interior option in since it is on the sales brochure that Honda published. I removed the rev limit and put the fuel cut rpm as I can't figure out which document I originally pulled it from. The fuel cut is the same. I only have one brochure showing the gear ratio's, and it looks like the 96-specR ratio's. Do you have any Honda of Australia published documents proving the ratio's/fd? The one I have available on the brochure section doesn't break the powertrain section down very much. I've obtained some info from my Honda of Australia contact, but they aren't super motivated to answer alot of my smaller more detailed questions. They seem rather unorganized with their late-90's/early 00's files. Acura of USA is like that to an extent too. Most of the older docs are on printed paper in a secure location, and not easily accessible. They need to hire an intern to put it all in digital format! Sorry for the tangent/rant. If you have any Honda of AU literature, please share.

I'll go through all of these sometime soon and make sure I haven't made any more input errors/fat-finger mistakes.

 

I fixed that, they should all be 11.1:1...that is except for our lower octane fuel consuming American caRs!

My original goal was to make this comparison with only honda published materials to prevent any incorrect information that the internet and forums are riddled with. Honda did produce some material pre-production where numbers changed, but for the most part the sales brochures and press material should be spot on. I kinda forgot about that comparison, and need to complete it (and go back and verify everything). If anyone does see anything out of place, let me know. I have alot of materials to verify with. Many of which are on the same page as the comparison.

 

sweet...

 

I'll see if I can track down anything confirming it from Honda Au, but I can absolutely confirm our cars have the JDM 98 spec ratios and final drive.

It's a frustrating process trying to obtain this sort of literature from companies at times - I can understand from their point of view though, it would be tedious...

 

Yep... same here with both my '00 and '99 DC2R's. The tacho is inaccurate, the actual RPM is not 8900/9000 but more like 8600rpm.

 

Well, here's my only two "Honda AU" brochures. I have one other with a ton of additional info, but I think somoene put it together. I found it on clubitr.com.au awhile back.

1999-http://www.integratyper.org/specs/im...lyer_Aug99.pdf

2000-http://www.integratyper.org/specs/im...C2_2000_sm.pdf

 

Here's the unofficial AUDM one that someone created (the one I mentioned in the above post): http://www.integratyper.org/specs/im...R_brochure.pdf

 

Ok can someone answer my question. What is the 98 spec b18c's piston compression height, and what is the blocks deck height.

 

How can you tell if its a JDM or a USDM?

 

Search, but heres a tip b18c=jdm b18c5=usdm

 

seems big difference...but

 

Wow that's an awesome graph for comparison!

 

I wonder how they shaved 90 kg off of the JDM version compared to the USDM version.

 

^^^Good question.

 

Safety equipment.

Thinner glass, front bumper construction (and support brackets), side impact protection, etc...

 

Dang, I'm a slacker...I still need to do it