GRINCH
1/2 ton status
I have this posted in my build thread in the 67-72 but I though I would post it here as well. Hoping to get more input.
Here’s my motor specs. It is currently at the machine shop getting prepped. I asked Marty at MTS to help me put a motor package together. I wanted a good idle and some HP/Torque to sand drag with. This is what we came up with.
500 CI Caddy motor bored 30 over
9.3 -1 compression ratio,
Ported polished 76cc heads 2.19/1.84 valves
Cam specs are
.315 lobe .535 valve lift 112 LSA Cam is ground 4* advance so intake centerline is 108 and exhaust is 116
Duration @ .050 is 220 in and 226 ex
1.70 ratio rockers
MTS is estimating that I will have approx 450 HP and 550 TQ.
Peak torque RPM about 2800 (No more winding up the 350)
MSD stand alone dist with external coil.
Fuel system:
I will be running a Edelbrock performer manifold. Dual-plane design
I still haven’t decided on the fuel injection yet.
I put these in order how I have ranked them so far.
1. Retrotek/Professional Products http://www.professional-products.com/EFI_3.php or http://www.retrotekspeed.com/products/powerjection-iii/
Powerjection III (Claims to support up to 650 HP)
I am really leaning towards this setup. I like the plug and play features plus the abilty to also fine tune the parameters if desired. Less wiring and a Wideband O2 Sensor. The only thing I don’t like is the ECM is internal to the unit and replacement parts for the trail.
Cost Around $1600
2. Affordable Fuel Injection http://www.affordable-fuel-injection.com/
Builds a nice kit with all stock parts and ECM. Would be using a 454 TBI unit bored out for more CFM.. Pros: Easily attainable parts Cons: More wiring less management, I would have to burn a new chip for any changes,
Cost is around $1200
3. FAST/Fuel Air Spark http://www.fuelairspark.com/ezefi/default.asp
Almost like the Powerjection but not as programmable. Costs a little bit more as well.
Cost $1900
I know there a lot more options out there and some are cheaper. I don’t want to mess with JY pulls or making my own harness and piecing parts together. Megasquirt and others have there place, But not on my build. I want something plug and go. I haven’t wheeled in over a year and it’s time to get going.
Quote:
Originally Posted by Greg72
Don't forget the Holley Commander 950 system.....around $1600.
There is another system coming from Holley in the next couple of months that will be more like the EZ-EFI and RetroTek systems. It will do the whole "learning" thing so you don't need to program any of the normal maps.
ALSO: Take a look at some of the discussion forums (non-CK5) about Retrotek Speed. I was really stoked about using their kit, but there is quite a bit of negative stuff out there from people who have used the system on hotrods, etc. Maybe a lot of that was "early adopter" issues, but there seemed to be some issues that weren't trivial, so just make sure you know what you're getting into BEFORE you send them (or any vendor) almost $2000 of your hard-earned money.
I stayed away from the Holley because I read a lot of bad stuff on their setups. More was related to their Projection. So maybe they warrant a closer look.
Their Commander kit comes with a narrow-band O2 sensor. Not sure if you can upgrade to a Wideband one. You can get the Holley Commander 900cfm model with 4 85Lb injectors for the 450-600 HP range or 4 75LB injectors for the 375 -525 HP Range. Both flowing in the 900 CFM range The Retrotek has 4 62Lb injectors. Time to find some injector charts to see what I will need based on the heads/cam I'm running and the Cubic Inches..
Not much out there yet pertaining to the new Holley Avenger EFI. Don't want to be one of the first one to run it.
Most of the complaints I found on the retrotek were from pre 2007. I did stumble onto some corvette and camaro sites that had some very positive posts and they were all in the 2009 to current range.
I still have a few weeks to decide.
In case any one asks why I'm not considering MPFI.
Two reasons.
1. There is no MPFI manifold yet for the Cad 500, I could weld in bungs on mine. No. $$$
2. I read that TBI actually produces more lower end TQ than MPFI, something about the injectors being further away and being able mix with the air better.
Here’s my motor specs. It is currently at the machine shop getting prepped. I asked Marty at MTS to help me put a motor package together. I wanted a good idle and some HP/Torque to sand drag with. This is what we came up with.
500 CI Caddy motor bored 30 over
9.3 -1 compression ratio,
Ported polished 76cc heads 2.19/1.84 valves
Cam specs are
.315 lobe .535 valve lift 112 LSA Cam is ground 4* advance so intake centerline is 108 and exhaust is 116
Duration @ .050 is 220 in and 226 ex
1.70 ratio rockers
MTS is estimating that I will have approx 450 HP and 550 TQ.
Peak torque RPM about 2800 (No more winding up the 350)
MSD stand alone dist with external coil.
Fuel system:
I will be running a Edelbrock performer manifold. Dual-plane design
I still haven’t decided on the fuel injection yet.
I put these in order how I have ranked them so far.
1. Retrotek/Professional Products http://www.professional-products.com/EFI_3.php or http://www.retrotekspeed.com/products/powerjection-iii/
Powerjection III (Claims to support up to 650 HP)
I am really leaning towards this setup. I like the plug and play features plus the abilty to also fine tune the parameters if desired. Less wiring and a Wideband O2 Sensor. The only thing I don’t like is the ECM is internal to the unit and replacement parts for the trail.
Cost Around $1600
2. Affordable Fuel Injection http://www.affordable-fuel-injection.com/
Builds a nice kit with all stock parts and ECM. Would be using a 454 TBI unit bored out for more CFM.. Pros: Easily attainable parts Cons: More wiring less management, I would have to burn a new chip for any changes,
Cost is around $1200
3. FAST/Fuel Air Spark http://www.fuelairspark.com/ezefi/default.asp
Almost like the Powerjection but not as programmable. Costs a little bit more as well.
Cost $1900
I know there a lot more options out there and some are cheaper. I don’t want to mess with JY pulls or making my own harness and piecing parts together. Megasquirt and others have there place, But not on my build. I want something plug and go. I haven’t wheeled in over a year and it’s time to get going.
Quote:
Originally Posted by Greg72
Don't forget the Holley Commander 950 system.....around $1600.
There is another system coming from Holley in the next couple of months that will be more like the EZ-EFI and RetroTek systems. It will do the whole "learning" thing so you don't need to program any of the normal maps.
ALSO: Take a look at some of the discussion forums (non-CK5) about Retrotek Speed. I was really stoked about using their kit, but there is quite a bit of negative stuff out there from people who have used the system on hotrods, etc. Maybe a lot of that was "early adopter" issues, but there seemed to be some issues that weren't trivial, so just make sure you know what you're getting into BEFORE you send them (or any vendor) almost $2000 of your hard-earned money.
I stayed away from the Holley because I read a lot of bad stuff on their setups. More was related to their Projection. So maybe they warrant a closer look.
Their Commander kit comes with a narrow-band O2 sensor. Not sure if you can upgrade to a Wideband one. You can get the Holley Commander 900cfm model with 4 85Lb injectors for the 450-600 HP range or 4 75LB injectors for the 375 -525 HP Range. Both flowing in the 900 CFM range The Retrotek has 4 62Lb injectors.
Time to find some injector charts to see what I will need based on the heads/cam I'm running and the Cubic Inches..Not much out there yet pertaining to the new Holley Avenger EFI. Don't want to be one of the first one to run it.
Most of the complaints I found on the retrotek were from pre 2007. I did stumble onto some corvette and camaro sites that had some very positive posts and they were all in the 2009 to current range.
I still have a few weeks to decide.
In case any one asks why I'm not considering MPFI.
Two reasons.
1. There is no MPFI manifold yet for the Cad 500, I could weld in bungs on mine. No. $$$
2. I read that TBI actually produces more lower end TQ than MPFI, something about the injectors being further away and being able mix with the air better.
