Pic of my 308 motor with the latest goodies!

Hey all,

Just wanted to share a pic of my 308 motor with the Fchat inspired motorcycle coil-on-plugs (aka COP's).


Sean
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Thanks . . . it's been an itterative process over the past year.

Sean

 

How's this?
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Thank you, thank you.

Fchat has been a great resource and motivator for me . . . gearheads are a dieing breed.


Sean

 

I'm using a Haltech E6x ECU for the brain. It controls the fuel injection also. When I first installed the ECU I still had the stock fuel injection on it. I copied the timing curve from the manual for the euro car and mistakingly ended up with 42 deg full advance (stock compression, etc.). It really livened up the stock motor though since it had such low compression. That was with the stock dizzy's and stock Ferrari triggers also. When I started using the Haltech triggers with the dizzy's it smoothed up the idle . . . I don't think the signal from the stock triggers was "clean" but there are some filters I could of played with if I wanted. Keep this in mind though . . . can't use the stock triggers with direct fire ignition. I made an adapter that fit in the harmonic balancer that holds the magnets the Haltech reccomends for triggers . . .. you can also do the E-motive set up with the missing tooth, etc. The stock triggers will only work if you continue to use dizzy's because of the number of pulses generated per rev is only enough for dizzy's - not direct fire.

This motor is higher compression and for some reason the COP's and MSD ignition unit reduced pinging and allowed me to advance the timing back to 36-38 degrees like the factory euro cars had . . . was only able to run 28 degress full advance with dizzy's and high comp motor before doing the direct fire but this could of been bad plug wire creating electronic noise or? One of the plug extenders had a burn in the side so it could of been creating noise also.


Sean

 

I was just trying to get more crankcase ventilation . . . there's a little K&N filter on the end of it. The rear main leaked when I first built this motor which made me think the crankcase was not venting enough at high rpm. I added a PCV system also but eventually the rear main stopped leaking I think once the rings seated. Not sure if it's doing any good any more. Doing a little research it seemed a good thing to be pulling blow by gas out of the block . . . pulling a vacum with a dry sump system is the ultimate which is why I also started working on that.


Sean

 

Thanks . . . here's a pic of my nitrous injection plate that's going on next.


Sean
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Nope, that's what lies beneath.

 

Why thank you.

I have g-force acceleration numbers from my data acquisition system. I backed out some hp numbers based on weight, etc. Someone else run the numbers (stock weight roughly) . . . wasn't what I was hoping for but that's why I'm playing with nitrous . . . never enough until you get the two black lines from one corner to the other. Flat line pull is around .62 g's which I don't think is that impressive hp wise. If I'm malicous with the clutch or lurch it from decel to full throttle I'll get .7 g's but she's running so good right now that I'm trying to be a little gentle.

You want some screen shots from my data acq system? Shows air/fuel ratio, etc. and you guys might have some tuning advice, etc.

Sean

edit: I weight "roughly" 200 lbs and give me the benefit of the doubt and a full tank of gas if you're running hp numbers . . . hot day also

 

I'll pull that data acq stuff off my other lap top. I posted my ignition advance curves a long time ago in an excel spread sheet. I had the vacum reversed at that time . . . that'll make sense if you look at it. I'll do a screen shot of the actual 3d map I'm running also. I don't think there's an official file ouput . . . ther laptop also.

Happy to return some inspiration!

Sean

 

Thanks. Different cams in my engine also . . . not sure how useful the map would be unless you built your engine similar to mine. I want to try and simplify/automate the mapping process using my wideband O2 and data logging in closed loop operation. It's way off in some places but it's pretty good at WOT which is where it matters most.

FYI I made extras of all the fuel injector adapters/holders which do not require any permanents mod's to the intake.

I data logged a pretty good launch this morning and will post a screen shot later.

Thanks again,

Sean

 

Screen shot resolution went down during file translation.

Sean
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Here's a screen shot of the ignition map.
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