Wednesday, July 25, 2012

Got a Bigger Lighter?

Boost was increased to 1.3 bar yesterday and the water/methanol injection activated. Resultant dyno with and without meth injection.

Why only a 7hp increase at the wheels with methanol injection and the squiggly lines at the top? Well the top end is breaking up due to my stock ignition and Hitachi coil-on plugs (COP) reaching its limit and struggling to keep up. At only 1.3 bar :( I need a better CDI and COPs. For CDI am thinking of the Autronic unit but cost is quite prohibitive. The COP is also going to be a problem. Okada Projects is not interested. AEM Pencil Coils are unreliable from what I read on the Net. And either option is not cheap. Anyone have any suggestions? Anyone have experience the AEM Pencil Coils or with T.M. Works?

Alternative of course is to temporarily stop the development work at this point. 301 hp at the wheels already translates to 331 hp at the engine assuming a 10% transmission loss. Torque is an equally monstrous 40 kg/m or 392.266 Nm at the wheels. This is much more than sufficient for daily driving with the Shark already feeling very fast at 30hp less. Going more than this is going to result in a bigger hole in an already near empty wallet. Decisions, decisions....

9 comments:

hmph said...

Bro... COP and ignition can be left for a while first till you have time to do more research hehe. Enjoy the car, let her run in, get the coils and ignition packs and THEN come back for round two haha!

Andrew Saw said...

Good suggestion Bro! When you joining the Autronic club btw? This Friday? :)

Unknown said...

Hello Andrew,

Do look into MSD DIS4+. The longer duration sparks below 3k rpm is quite something. High end of course no issue and you can even try to gap up the spark plugs to 1.2mm.

f8/Foo

Andrew Saw said...

Bro,

Problem is the stock cop can't cope even if I upgrade to a better cdi. The good news is that T.M. Works has agreed to make me some upgraded cops. The bad news is the cost :(

Unknown said...

I think if running MSD then use external coils with Magnecor cables that can fit in place of the previous COP to contact the plugs?

Foo

Andrew Saw said...

I would prefer to run a cop setup. Spark plug cables are kinda old school :)

Unknown said...

Hahahhaa well how's this for old school?

https://picasaweb.google.com/lh/photo/Yv4GpZomVp4LMf-VoZwtjGaLjsR9iL58rcFldGPoSnY?feat=directlink

Personally I prefer analogue watches to LCD watches, though I'd stop at CD Players without going to turntables :)

Andrew Saw said...

Sui Bro! A bit claustrophobic on the right side though :)

Any further pictures and details of your build?

Strongly agree on the CD players too. Me just too lazy with turntables at this point.

Unknown said...

Yeah its an NA 1.5 4G15. No biggie on the engine. Inspired by Porsche's philosophy of a tacho dead centre, and important info on fluid (water temp, oil temp and oil pres). Proton cluster not too big and didn't want meters above dashboard.

Also didn't want to pay premium for Defi. Just wanted it functional.

Had to relocate fuel gauge to passenger side. Being a cable driven speedo, the relocation from centre to left was a royal PITA!