NA is best - 3.1L M20 w/ ITB's

[digger]

TS=IAT (air temp)?

The stock ECU is very unhappy with 0v going to the AFM inputs, haven't tested with the IAT absent.

TS = throttle switch

[ForcedFirebird]

TS=IAT (air temp)?

The stock ECU is very unhappy with 0v going to the AFM inputs, haven't tested with the IAT absent.

[digger]

You Can't run WAR properly without the TS anyway right ? I've seen war used with RHD but it used a spacer to fit TS near thermostat housing

[ForcedFirebird]

As Squid said, with your vacuum manifold the ICV will work fine. You will be able to plug the MS in and run it straight away for the most part.

[squidmaster]

I would pick MS over the war chip, especially for your setup. Running any style of calculation mode will be less of a headache than dealing with the war chip software. Keep in mind the miller maf conversion is not a true conversion. There's no hardware to take the MAF signal and convert it to the exponential AFM style. And Miller neither took that into consideration nor changed any AFM table values, instead making a painful fueling table that's.... Nevermind. Just, you're better off with MS here.

You can still keep MAF and ICV with MS btw, no need to worry. You don't really need an ICV but it's nice to have

[Raxe]

Day 5 has ground to a bit of a halt. Making slow progress installing the throttle linkage, this new overhead design is different than most of the others I've seen and I was having a tough time figuring it out. The diagrams show how the linkage goes together but not how the cable is set up. After a couple hours I did manage to get it working and pedal travel finally seems to be timed properly between closed and WOT.

Early pictures, arm position is not correct (upper arm is now at 2 o'clock and cable is taut):



Test fitted airbox with cable to check hood clearance. I'm not running any hood insulation and it still required some pounding on the inner hood bracing to clear the air box, but it does close. Once the hood is properly reinstalled I'll measure again and probably hammer it some more as there's only a couple millimeters right now.



Sadly I've ran out of time to complete it for now. I'm also still trying to decide if I even bother attempting to get the MAF/WAR combo working or just jump right to MS2PNP. Ideally I'd prefer to keep a MAF and ICV for driveability but it'll come down to syncing the throttles with a plenum (can you even idle the car with the Miller MAF unplugged? I never tried it...) and how reliable uploading/changing values with the WAR chip will be.

[sampayne]

The vacuum block turned out very nice. It really does resemble the stock intake manifold! :up:

[straight6pwr]

awesome build. LOVE the mini crab.

[tak7]

Nice work and beautiful car.

[Raxe]

Thanks guys. Day 4 was a success, less time than the previous days but got some important points knocked off.

Started off with the new coolant hoses. New one looks older haha, probably very old stock.





Then began working on the vacuum system. I'm using the instructions Rama has on his site and retaining the factory idle control valve and carbon canister. Assembled the vacuum block and installed fittings on the manifolds:





"Final" install of the manifolds with the fittings:



Installed the injector rail and harness:





Ran 8mm vacuum hose from each cylinder to the block. Used little 90° connectors to redirect the lines and keep things neat. The design is like a little easter egg tribute to the factory manifold design. :)





It looks kinda messy under there still because of the unplugged wires but it's actually cleaned up pretty nicely, I've been rerouting and shortening hoses when possible. Unfortunately my brake booster hose and check valve is not the style I need and I can't get a new one for a week or so. That part will have to wait sadly.

Last modification of the day was to once again cut the brand new heater core hose just a bit as fitment against the firewall is super tight and the factory hose interferes with cylinder 6 as seen in the photo above. Every bit counts!



Tomorrow might be a break day, but I'm so mentally involved with this now that I'll probably end up working on it again haha. I think I'm ready for the linkage now.

[tiger_e30]

KA motors produces almost nothing.
Just sells stuff. Sometimes giving credit to the manufacture, sometimes not.


Sent from my iPhone using Tapatalk

I just assumed he had fabed it. just looked at the site and it gives credit to rhd

[berlow94]

Lol I didn't realize that

KA motors produces almost nothing.
Just sells stuff. Sometimes giving credit to the manufacture, sometimes not.


Sent from my iPhone using Tapatalk

[tiger_e30]

KAMotors IS the RHD kit...


Sent from my iPhone using Tapatalk

Lol I didn't realize that

[berlow94]

That is a great looking set up I have thought about trying to knock together itb from a skyline RB26. Why did you go with rhd over kamotors?

KAMotors IS the RHD kit...


Sent from my iPhone using Tapatalk

[tiger_e30]

Finally pulled the trigger on the one modification I've been eying for years - individual throttle bodies! Picked up a kit from RHD with the new airbox. I'll be putting it together between Christmas and New Years, almost finished gathering the last bits and pieces I can think of before the holidays. I'll also be changing the camshaft out from a 272 to a 288 and swapping the IE rockers for MM ones. The plan is to complete the cam change and install the throttle bodies in ~3 days, then figure out the actual air filter situation afterwards. I'm going to keep the Miller MAF and WAR chip setup as opposed to an Alpha style tune using MS... guess we'll find out if it works haha.

That is a great looking set up I have thought about trying to knock together itb from a skyline RB26. Why did you go with rhd over kamotors?