just want some reassurance on combo choices
- Thread starter Grumpy
- Start date
Christopher Williams
EZsleepin
It's miserable without decent vacuum for sure
Why does EFI like a wider LCA than a carburetor?
Christopher Williams
EZsleepin
Vacuum at idle I believe. Grumpy or Brian may be able to give you a nore precise answer
Christopher Williams
EZsleepin
Low idle vacuum can be troublesome and a PITA with these EFI kits
Christopher Williams
EZsleepin
Edelbrock claims as long as it's 10" I would be ok. I'm a little skeptical and would like to see more. Especially factoring in engine wear. But maybe they have it figured out. I downloaded their app and looked at the tuner, they have a good bit of options for tweaks to it to get it correctly set. It's self learning also
Maniacmechanic1
solid fixture here in the forum
Only safe way is too look at catalog recommend EFI Cam profiles.
Modern EFI Guys that want more power use Turbocharging.
Ok, what is the trouble then???
So it's not about performance, but ........???
Maniacmechanic1
solid fixture here in the forum
Map sensor vacuum sensor signal.
Smooth and steady required.
18-21 inches stock.
14 inches to allow for all variables unknown hotrod.
Race shop I worked in all was EFI.
All Boost too.
Maniacmechanic1
solid fixture here in the forum
Chassis Dyno too.
3 EFI tuners.
I built the engines.
Head Tuner has a Texas mile car.
202 mph.
4 cylinder. The Flying EVO.
50 psi boost.
88mm turbo.
975 flywheel hp.
I built his engine last fall.
Yusef.
Knows his stuff.
Trusted me to build.
3 EFI tuners.
I built the engines.
Head Tuner has a Texas mile car.
202 mph.
4 cylinder. The Flying EVO.
50 psi boost.
88mm turbo.
975 flywheel hp.
I built his engine last fall.
Yusef.
Knows his stuff.
Trusted me to build.
Maniacmechanic1
solid fixture here in the forum
What he has .
Edelbrock Pro Flow
Maniacmechanic1
solid fixture here in the forum
We will check it out.
Driving home yet.
Unless it gives 50hp more than the Crower or Isky likely not worth it.
Christopher Williams
EZsleepin
Try not to get a ticket
Maniacmechanic1
solid fixture here in the forum
In the Tahoe.
Doing speed limit
Maniacmechanic1
solid fixture here in the forum
400 SBC Lunati 50156 Hydraulic Roller Cam.
1000 cfm throttle body.
Single Plane Intake.
Small Tube Headers open exhaust.
Maniacmechanic1
solid fixture here in the forum
Lunati 50156.
Dual Plane Intake .
Small Tube Headers open exhaust.
Maniacmechanic1
solid fixture here in the forum
Lunati 50156 .
Dual Plane intake.
Small Tube Headers with Mufflers.
Maniacmechanic1
solid fixture here in the forum
The Lunati 50156 makes more Hp than the Crower & Isky.
But it has alot more Overlap.
Calculates to 17 degrees at .050" lift.
Crower & Isky are at 5 degrees @.050".
Its deceiving how much cam overlap is there because we are used to Advertised Overlap talking about cams.
Lunati lists the 50156 as Rough idle when I looked it up.
I tried to find a conversion formula for .050" to Advertised cam overlap.
It does not exist.
Intake Centerline is 104.
Its a Max effort EFI cam for drag race to me.
Not one I would choose for your Camaro because goals changed to ease of driving and tuning with EFI Edelbrock Pro Flow.
But it has alot more Overlap.
Calculates to 17 degrees at .050" lift.
Crower & Isky are at 5 degrees @.050".
Its deceiving how much cam overlap is there because we are used to Advertised Overlap talking about cams.
Lunati lists the 50156 as Rough idle when I looked it up.
I tried to find a conversion formula for .050" to Advertised cam overlap.
It does not exist.
Intake Centerline is 104.
Its a Max effort EFI cam for drag race to me.
Not one I would choose for your Camaro because goals changed to ease of driving and tuning with EFI Edelbrock Pro Flow.
Maniacmechanic1
solid fixture here in the forum
Likely 76-80 degrees cam Overlap advertised I think.