Tuning a SC K20Z1

[stevenc]

There isnt much data on tuning a SC K20Z1. My question is since the Z1 has ITR cams, what cam angles have you guys run when tuning SC ITR engines? I looked at the K20A2 calibration for 9 psi and you run basically 40 degrees across the rpms range... What have you done on K20A's?

Thanks
Steven
Houston, TX

[Razathorn]

There isnt much data on tuning a SC K20Z1. My question is since the Z1 has ITR cams, what cam angles have you guys run when tuning SC ITR engines? I looked at the K20A2 calibration for 9 psi and you run basically 40 degrees across the rpms range... What have you done on K20A's?

Thanks
Steven
Houston, TX

I thought it was pretty much 50 most of the way. The ITR cams have more overlap, which means you should experience more exhaust overlap at 50 degrees cam than an k20a2 would. Some who have tuned have found that less overlap up top produced more power with their air flow setup. Basically, there is some point with the supercharger that you reach where you have boost blow through when you have too much overlap. My *guess* is this point will be sooner for ITR cam people.

It would be neat if you did a full VTC tune and posted your findings .

[stevenc]

i will run a 10, 20, 30, 40 and 50 tune and overlay and see where everything falls out. However i was just wondering what hondata had seen on the ITR cams

[TransformedBG]

I was getting my K20A Itr with JRSC tunned yesturday, and low cams it was loving 30 degree cam angles, and then we were just starting to tune the high cams and ran out of fuel pressure from the pump. But it was pretty different. For now this is my tune:

[rsx-s 05]

Well I just purchased today the Comptech supercharger for my 05 RSX type S
With the 3.3 pulley (hoping for 6-7psi) and their modified Injectors 520?s

My current mods are K-pro I/H/E

I remember you guys post in Clubrsx http://forums.clubrsx.com/showthread.php?t=348318

Well in post # 12 you guys posted

?The tune is not highly optimised. Ignition is a couple of degrees less and airfuel ratio a little richer. It is designed to be a good starting point for others.?

I uploaded the newest K manager and could not find the base kal for the 05 rsx ctsc
Will You guys be adding this soon?

[Hondata]

You'll have to contact Comptech for the calibrations.

[rsx-s 05]

Okay Thanks!
I 'll will be calling them Monday

My CTSC came in today wow, and they told me it will take two weeks since there on back order. HA! Only took two days.

[rsx-s 05]

Well it took me 9 hr to install keep droping bolts and had to search for them

used the jrsc 550 kal and was just making 5 psi at 7k

the 05 seem to like the cams at 28 now its at hitting 7.2 psi