The "WildZL1" Build Journey

[FasNuf]

Originally Posted by Vicster

Yeah, right now fuel pressure is 50 to 51psi even at idle with the FPCM and Livernois pumps. I will be using a boost reference regulator, won't fuel pressure rise as boost does? That is the reason I set it at 44psi so at 18lb of boost fuel pressure will be 62lbs. I have a fuel pressure gauge on the fuel rail to get real time fuel pressure.

That's correct. 43lbs is base pressure at hot idle with boost reference plugged off.
1:1 boost reference both ways...more in boost and less in vacuum. just keep an eye on injector DC. good rule of thumb is 85% max.

[RobZL1]

Originally Posted by FasNuf

It looked fine to me but if you find your injector duty cycle at WOT is getting too high, you'll need to probably go to 58 psi.

I also see you turned off your Long Term Fuel Trims. I've been thinking about doing the same. It can create problems when in Power Enrichment.

Thanks Vic, glad to help out.

Quick (and apparently little known) trick to get around that PE issue, AND keep your long trims active. I'm the only one I've ever seen do this in a tune, but it works great to keep positive trims from adding to PE.

Fuel>Oxygen Sensors

Change LTFT Mode Boundaries, Purge off as such:
Make the 9-10 cell something lower, like maybe 58 (that's what I used), so it moves into that cell on its way to open loop. Then, even if you have positive trims, it will pass through cell 9 on it's way to open loop, which will have a different set of trims (likely 0 since you're never in there long enough for it to learn). So, the last set of trims it sees prior to open loop are 0 or close to it.



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[FasNuf]

Great advice, Thanks Rob!
I do like running with my LTFT's on

[RobZL1]

And let me tell both of you guys, these Gen V ecm's are an interesting beast. Just now getting my hands into it on the new ride, but it's pretty cool the way all of the torque stuff works. I think a lot of it is actually easier, albeit more complex. Certainly need to change your mindset from Gen III and IV ecm's.

Anyway, glad to see the build moving along, Vic!!


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[FasNuf]

Originally Posted by RobZL1

And let me tell both of you guys, these Gen V ecm's are an interesting beast. Just now getting my hands into it on the new ride, but it's pretty cool the way all of the torque stuff works. I think a lot of it is actually easier, albeit more complex. Certainly need to change your mindset from Gen III and IV ecm's.

Anyway, glad to see the build moving along, Vic!!


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Sorry Rob ... easier but more complex is an oxymoron to this old man

I guess I didn't follow, did you get a 6th gen? >>>>edit: duh, I see the avatar now

[IKILLEDSUPERMAN_ZL1]

Awesome build!

[bottletalk]

Originally Posted by Vicster

Alignment done, man it drives AWESOME!!! I can feel more road noise through the ass end, due to the cradle bushings. But worth it!!!

can't remember, did u use adjustable control arms, toes or trailing arms?? how low are ya?

[morepowerjoe]

Originally Posted by Vicster

Alignment done, man it drives AWESOME!!! I can feel more road noise through the ass end, due to the cradle bushings. But worth it!!!

That's awesome buddy!

[bottletalk]

Originally Posted by Vicster

Car is lowered 1.25 inch, rear has 1/2 inch aluminum spacer, so back end sits a little higher, I do not like the back end to look like it is sagging. Adjustable toe arms with poly bushings, one piece lower control arms and trailing arms with poly bushings in the knuckles. Poly cradle bushings, first drive with new lower control arms and cradle bushings. Very stable after alignment.
I think these 2 pics show it best.

that is the stance I'm going for!'looks great!!
did u just put the control arms on? what made u decide to go with 1 piece? did u get that alignment without the use of cam bolts?
I'm about to order some control arms, still debating if I should save some cash and go with 1 piece..,well if I can get a great alignment like yours it doesn't make sense to double the $ and get adjustable s if I can get away without them....hmmm

[bottletalk]

Originally Posted by Vicster

UPDATE: SORRY ONLY 1.0 INCH BMR DROP SPRINGS.

Hello,
I just installed the craddle bushings and lower contol arms. The ass end of the car was all over the road, so I went with the one piece lower control arms as BMR said they were for lowered cars.

Thanks vic!
did u originally put in adjustable control arms and the non-adjustable gave you more traction??

[bottletalk]

Originally Posted by Vicster

UPDATE: SORRY ONLY 1.0 INCH BMR DROP SPRINGS.

Hello,
I just installed the craddle bushings and lower contol arms. The ass end of the car was all over the road, so I went with the one piece lower control arms as BMR said they were for lowered cars. Did not use after market cam bolts, only the stock ones. The rear camber is limited with the one piece lower control arms, I wanted 0.5* but they could only give me 0.3*.

These are the spacers I used for the rear struts McBay Performance MP1626. I used machining blue dye and a roto burr cutter to get them to fit properly.

Originally Posted by bottletalk

Thanks vic!
did u originally put in adjustable control arms and the non-adjustable gave you more traction??

sorry vicster, one more question....at least until your next build/mod/dyno post.

what are your tire sizes in that pic? if your running 315's any chance you can post an ass shot?

[bottletalk]

of the car of course!

[morepowerjoe]

Originally Posted by Vicster

I took the camaro for a long drive today, the fuel gauge would not go above 3/4 when I filled the tank (FILLED 3 TIMES). During the drive I got DTC icon on the dash and code P9463 then the gauge would drop to empty. The rest of the drive the DTC icon stayed lit up and the fuel gauge needle would go up and down, from below 3/4 (depending on how much fuel I burned) and drop straight to empty. Contacted holley awaiting a reply...
I attached a pic of the code.

I really hope I do not have to pull the holley pump back out of the fuel tank to send it in for a replacement!

Took car on a long trip it drove awesome, wife even liked how it handles and feels planted to the road! If she could tell I know it is better!

Road noise from the back of the car is loud, due to craddle bushings.

Driving tune is done, AFR is within 1% on short term fuel trims. The AEM wide band shows 2 to 3% lean, I will go with the car STFT since this is what the car uses.

So fix fuel gauge issue and dyno run are next...

I can't wait until you get it in the dyno and except the fuel gauge issue everything else felt fine though?

[bottletalk]

thanks vicster!!

ps: is there another purpose for those spacers other then saving yourself from going to adj.control arms??
good idea, I might just do that! cheers