[swisstyphoon]

I have a brand new set of FIC 30% injectors for sale. For anyone looking.
https://www.camaro6.com/forums/showthread.php?t=601699

[JSH]

This would be my next mod, maybe this summer

Originally Posted by KingLT1

Today I finished up tuning my brothers C7Z M7. It's a Heads/Cam 11.1 compression LT4 with Maggie 2300. Catless headers and Cordes 5" intake.

Fuel system mods:

FIC +30 Injectors
LPE HPFP
Stock low side with JMS

Currently running E61

I am commanding 2500psi rail pressure & .82 Lambda AFR. 20-21 degrees of timing.

@ 13.5psi, Injector pulse widths are only 5.4ms, rail pressure 2400psi, low side does taper down to 50psi @ 6800rpm.

I was surprised how lowering the rail pressure from 2900 to 2400 took some strain off the low side being it would only tolerate E40 before. This did increase the Injector pulse widths from 5.0 to 5.4ms but that is still plenty of headroom.

He is going to swap in the ZR1 low side pump and we are going to try for E70.

Just wanted to share this info for those looking at fueling options. These FIC's are super easy to tune and the car drives no different then it did with the factory stuff.

Not cheap by any means but if you are looking at sticking with strictly DI for fueling then these are worth looking at for sure.

[KingLT1]

So we ended up swapping the FIC +30's out for XDI +65's on the C7Z06. High side was dropping a bit too much for comfort on E47 in cooler weather. I was commanding 2900psi with the +30's and it was running out of both injector and high side. Warmer months it was fine on E50.

With the +65's I am commanding the recommended 2175psi(LT1 pressure). Now we are starting to find the limits of the DSX Aux setup. Commanding 80psi and it slowly drops to 68-70psi which is still in range. High side stays within 200psi of commanded and injectors are hovering around 5.5ms area on E65.

With a triple pump tank setup and 44% cam full pump E wouldn't be a problem I wouldn't think. It might get close now in the summer(It was 55-60 degrees when logging)

Either way it's making some steam and E65 is a noticeable performance difference from E45 on this higher compression build (11:1). 60-130 pull from 3rd (M7) fights for traction.

Also note the +65's require a little more tune work to get the driveability right. They require a minimum of .8 MS to fire correctly and with the stock rail pressure settings you will see .5 in spots causing some issues. Once sorted they work perfect.

To recap the setup:

11:1 LT4
Mag 2650 running 5% lower/80mm upper.
LPE ported heads
Cordes stage 2 cam 32%.
LPE HPFP, XDI +65, Cordes Aux low side
Cordes 5" cai, 103mm tb
LT headers, into catless Billy Boat Npp.

[EDFHOBBIES]

If only u did the 42% lobe.. you could be 900 or more on pump E..

[EDFHOBBIES]

Originally Posted by EDFHOBBIES

If only u did the 42% lobe.. you could be 900 or more on pump E..

It's not the all the dsx fault I had a bigger low side and only plus 30% not to mention a rebuilt hiflow line and filter on the low side. I needed the 42% lobe.

Did all this 3 years ago.

[Joshinator99]

Nice work King. That cars definitely making some steam!

[EDFHOBBIES]

Funny I mentioned all this 3 years ago..

42% lobe
Fore low side
High flow line and ck valve
Plus 65

Equals full E in the 900s

That was straight from LPEs tuner looking at my file that Matt sent over. The shop that invented the pkg.

I shared this info but laught at since I don't know shit and run edelbrock and not a maggie

[KingLT1]

Originally Posted by EDFHOBBIES

Funny I mentioned all this 3 years ago..

42% lobe
Fore low side
High flow line and ck valve
Plus 65

Equals full E in the 900s

That was straight from LPEs tuner looking at my file that Matt sent over. The shop that invented the pkg.

I shared this info but laught at since I don't know shit and run edelbrock and not a maggie

I never laughed at you or said anything negative about your info. You never shared the info prior to this setup being built. As I already mentioned once, I didn't spec the combo anyway....I am just tuning it.

Either way this is a case of "I only want X power" then it snowballs into more. And it's not like the setup is at a dead end. Josh could easily add the XDI belt driven pump and upgrade the low side if he wanted more E. And to top it off it's pretty close to being able to run Full pump E anyway since it usually is around E75 here, and there is a good chance he will be able to in the summer. Full E is not needed anyway... E10 to E40 is about a 30whp gain. E40 to E60 is probably another 15-20whp. E60(105 octane) to E85(110octane) is likely less then 10whp. 99% of the setups out there do not need more then 105 octane fuel to get all the timing. Stock compression LT4's can probably get all the timing they need on E40 with the lower compression.

Originally Posted by Joshinator99

Nice work King. That cars definitely making some steam!

[EDFHOBBIES]

Well xdi will never hit what the maggi is capable of no room for over a10 inch drive pulley. I just like not worrying about a % I have gotten e91 at the pump several times. Also I rather run with room to grow vs on the edge worrying about content and pressure drop for x power. Nothing wrong here just do it right the 1st time. And when someone relays important info on the design of lpe parts from lpe's mouth listen! I was fortunate enough to be told because if you just gather parts from there website it says nothing about how to make max effort with there stuff and numerous people have bought their stuff and listed a month later because the combo wasn't right. It wouldn't of cost anymore money now accept having to do things 2x. But if your happy then no worries but to have better parts for the same price it a no brainer not to do it the 1st time. For instance 1000 dsx pump will now cost the fore to 3500.00 instead of 2500.00 and the 2200.00 fic's just made the 65s cost 6k cam is a wash get the 42% lobe on any grind u choose

[KingLT1]

Originally Posted by EDFHOBBIES

Well xdi will never hit what the maggi is capable of no room for over a10 inch drive pulley. I just like not worrying about a % I have gotten e91 at the pump several times. Also I rather run with room to grow vs on the edge worrying about content and pressure drop for x power. Nothing wrong here just do it right the 1st time. And when someone relays important info on the design of lpe parts from lpe's mouth listen! I was fortunate enough to be told because if you just gather parts from there website it says nothing about how to make max effort with there stuff and numerous people have bought their stuff and listed a month later because the combo wasn't right. It wouldn't of cost anymore money now accept having to do things 2x. But if your happy then no worries but to have better parts for the same price it a no brainer not to do it the 1st time. For instance 1000 dsx pump will now cost the fore to 3500.00 instead of 2500.00 and the 2200.00 fic's just made the 65s cost 6k cam is a wash get the 42% lobe on any grind u choose

The XDI's don't need to hit what the Maggie is capable. That isn't our goal...not trying to max the Maggie out. The goal for the owner is to be able to run at least E60. He can now do that with plenty of room to spare. I am glad you don't want to worry about mixing E...it doesn't bother us.

The original LPE founded by John Lingenfelter himself located in Decatur, Indiana didn't even have any advice to offer about E85 builds back when I called them in 2017-18. They were only doing pump gas builds and that is still really all they do. They recommended a 6.5mm lobe, +52 kinetic injectors, Big bore, and Fore low side all for 1000hp pump gas build. They couldn't guarantee shit on E.

The parts removed from the car can easily be sold. Shouldn't be hard to get 1900.00 for the +30's and 700.00 for the Cordes Aux pump if he chose to go that route.

[CamOnlyJabroni]

Originally Posted by EDFHOBBIES

Well xdi will never hit what the maggi is capable of no room for over a10 inch drive pulley. I just like not worrying about a % I have gotten e91 at the pump several times. Also I rather run with room to grow vs on the edge worrying about content and pressure drop for x power. Nothing wrong here just do it right the 1st time. And when someone relays important info on the design of lpe parts from lpe's mouth listen! I was fortunate enough to be told because if you just gather parts from there website it says nothing about how to make max effort with there stuff and numerous people have bought their stuff and listed a month later because the combo wasn't right. It wouldn't of cost anymore money now accept having to do things 2x. But if your happy then no worries but to have better parts for the same price it a no brainer not to do it the 1st time. For instance 1000 dsx pump will now cost the fore to 3500.00 instead of 2500.00 and the 2200.00 fic's just made the 65s cost 6k cam is a wash get the 42% lobe on any grind u choose

Holy rant. It appears that through your ADHD post you’re actually trying to help and I appreciate that.

[Choda]

^^ truth edfhobbies was right. props

great build and thread King. Look forward to more updates. What was the draggy in that pull to 130?

[KingLT1]

Originally Posted by Choda

^^ truth edfhobbies was right. props

great build and thread King. Look forward to more updates. What was the draggy in that pull to 130?

Thanks,

It's not my car...I didn't Dragy it. I am just tooner and have only made single 3rd gear(M7) pulls with it. Looks like based on the log time stamp it was in the 5's pedaling the bottom of 3rd.

[radz28]

Cool stuff. Thanks for sharing more.