Cam Install & Tuning: Lessons from My 2022 Camaro ZL1 1LE Build - Page 2

RobZL1 · 02-07-2025, 08:31 PM

Related cam question- is the prevailing wisdom still that one should replace the high pressure fuel lines, or is that no longer a thing?

Evansa22 · 02-08-2025, 11:15 AM

Ive seen some people have issues and others that don't. I figure better safe than sorry so I personally bought new hp lines for an injector install. But if you're careful, you can keep all the lines hooked up. Just have to work each rail a little at a time going back and forth betweeen each bank. Going back in may be a different story but here's a pic of how mine came out.

KingLT1 · 02-08-2025, 12:29 PM

Quote:

Originally Posted by RobZL1

Related cam question- is the prevailing wisdom still that one should replace the high pressure fuel lines, or is that no longer a thing?

As Evans pointed out if you are careful you can disconnect all the wiring, loosen the HPFP and Injector rail bolts and pull it all out intact with care. Then you don't have to replace any lines.

RobZL1 · 02-08-2025, 03:37 PM

Thanks, guys. I'm on the fence about just pulling the trigger on the Goliath and +50%XDI's while I've got everything apart, so then I'd definitely buy the new lines. But man, fueling is expensive. I'll probably end up saving that for next year just to spread out the financial impact. Plus if I build the whole thing now I'll be bored. If I'm honest with myself, the process of modding is more than half the fun.

02-07-2025, 08:31 PM	#15
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,805	Related cam question- is the prevailing wisdom still that one should replace the high pressure fuel lines, or is that no longer a thing? __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // BMR MM // BC Forged KL13 Mods being installed- oil pump, cam, ported heads, dual in-tank, Goliath and XDI, corn, etc., etc.

02-08-2025, 11:15 AM	#16
Evansa22 Drives: 2018 HBM ZLE Join Date: Aug 2017 Location: In the garage Posts: 877	Ive seen some people have issues and others that don't. I figure better safe than sorry so I personally bought new hp lines for an injector install. But if you're careful, you can keep all the lines hooked up. Just have to work each rail a little at a time going back and forth betweeen each bank. Going back in may be a different story but here's a pic of how mine came out. Attached Images __________________ Check out my youtube channel https://www.youtube.com/@evans.educa...ocxUzC1ferqeg8 Full SPL suspension / Ported blower / NW 103mm / Rotofab BG / 2" Headers / Ported heads / Upgraded Valvetrain w/ DOD delete / Custom 38% Cam / C7.R Timing chain / Katech Oil pump / BMR motor mounts and chassis braces / Katech 174* Thermostat / Pierburg Supercharger coolant pump / PLM HX / JMS voltage booster / ATI Damper w/ 8.6 Lower / MM Mild catch can / ADM Resevoir / soon to come... Rebuilt Engine / XDI +30% injectors / PWR Oil cooler setup / GMS Hood bracket 760 Whp / 700 Wtq E50

02-08-2025, 03:37 PM	#18
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,805	Thanks, guys. I'm on the fence about just pulling the trigger on the Goliath and +50%XDI's while I've got everything apart, so then I'd definitely buy the new lines. But man, fueling is expensive. I'll probably end up saving that for next year just to spread out the financial impact. Plus if I build the whole thing now I'll be bored. If I'm honest with myself, the process of modding is more than half the fun. __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // BMR MM // BC Forged KL13 Mods being installed- oil pump, cam, ported heads, dual in-tank, Goliath and XDI, corn, etc., etc.

User Name		Remember Me?
Password