[
Ford Lightning clone
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 185
Likes: 0
That's being pretty bold "I'm gonna run it anyways" You have a big 4x4 truck, it's not a great cam for a truck. Yeah you can find plenty of trucks running mustang cams, you can find trucks running bigger cams as well. Still doesn't change the fact that the e303 is a cam for a 3500 lb car, not a 5500-6000 pound truck.
As far as what injectors, if you're only going to run gt40 heads, you only need 24lb injectors. Even if you did a stroker kit.
If you are smoking some good stuff, and think you're going to persue forced induction, you'll need 42s. But before any of that stuff, you'll need mass air and a programmable chip like quarterhorse or tweecer.
You don't "need" a fuel pressure regulator. It can help sometimes, my 460 loves extra pressure. But you gotta test it and log the air fuel ratio.
You don't need bigger fuel rails til you're above 450-500 hp.
As far as what injectors, if you're only going to run gt40 heads, you only need 24lb injectors. Even if you did a stroker kit.
If you are smoking some good stuff, and think you're going to persue forced induction, you'll need 42s. But before any of that stuff, you'll need mass air and a programmable chip like quarterhorse or tweecer.
You don't "need" a fuel pressure regulator. It can help sometimes, my 460 loves extra pressure. But you gotta test it and log the air fuel ratio.
You don't need bigger fuel rails til you're above 450-500 hp.
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
The new 5liter is only $7k. I was surprised. If I had the cash, and didn't have a 400hp sbf in my 68 already, I'd opt for the new tech. But I just bought rack kit, keisler t45, hyd clutch kit, and all kinds of crap. Oh well.
Anyway, I'd still keep the e303 on the shelf for another project. I think it will work ok, but not the way you need or want in a vehicle that's 2000lbs heavier and with less effective gear ratio than what is normally in a mustang with that cam.
Your project though. I didn't listen to people when I twin turbod a 351 with a z303 cam... Let's just say it was awesome, but you had to mess with so much to get it to work nice.
What is the tuning place going to do. Dyno and custom sct chip or what. I'm interested because I'm looking at quarterhorse for my truck and would sometimes just like someone else to tune my vehicle just once. Everything I tune is a toy. I can handle the quirks. But I'd like some fine tuning help for my daily driver.
Anyway, I'd still keep the e303 on the shelf for another project. I think it will work ok, but not the way you need or want in a vehicle that's 2000lbs heavier and with less effective gear ratio than what is normally in a mustang with that cam.
Your project though. I didn't listen to people when I twin turbod a 351 with a z303 cam... Let's just say it was awesome, but you had to mess with so much to get it to work nice.
What is the tuning place going to do. Dyno and custom sct chip or what. I'm interested because I'm looking at quarterhorse for my truck and would sometimes just like someone else to tune my vehicle just once. Everything I tune is a toy. I can handle the quirks. But I'd like some fine tuning help for my daily driver.
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 185
Likes: 0
The new 5liter is only $7k. I was surprised. If I had the cash, and didn't have a 400hp sbf in my 68 already, I'd opt for the new tech. But I just bought rack kit, keisler t45, hyd clutch kit, and all kinds of crap. Oh well.
Anyway, I'd still keep the e303 on the shelf for another project. I think it will work ok, but not the way you need or want in a vehicle that's 2000lbs heavier and with less effective gear ratio than what is normally in a mustang with that cam.
Your project though. I didn't listen to people when I twin turbod a 351 with a z303 cam... Let's just say it was awesome, but you had to mess with so much to get it to work nice.
What is the tuning place going to do. Dyno and custom sct chip or what. I'm interested because I'm looking at quarterhorse for my truck and would sometimes just like someone else to tune my vehicle just once. Everything I tune is a toy. I can handle the quirks. But I'd like some fine tuning help for my daily driver.
Anyway, I'd still keep the e303 on the shelf for another project. I think it will work ok, but not the way you need or want in a vehicle that's 2000lbs heavier and with less effective gear ratio than what is normally in a mustang with that cam.
Your project though. I didn't listen to people when I twin turbod a 351 with a z303 cam... Let's just say it was awesome, but you had to mess with so much to get it to work nice.
What is the tuning place going to do. Dyno and custom sct chip or what. I'm interested because I'm looking at quarterhorse for my truck and would sometimes just like someone else to tune my vehicle just once. Everything I tune is a toy. I can handle the quirks. But I'd like some fine tuning help for my daily driver.
As for the tuning i dont know what he has for plans he said get it done and he would tune it he runs a great speed shop DBR high performance
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
Z303 is also called "camzilla". It's significantly bigger/different than the e303. I don't know the specs off hand, but It's probably the biggest oldschool cam you can use in an efi car. It run like crap on eec4 so I put megasquirt on it. Turbos were two holset h1c. The cam alone was crazy fun, but boost made it a flamethrower with the overlap and stuff. Was fun while it lasted.
Senior User
Joined: Feb 2014
Posts: 201
Likes: 0
From: Monroe, NY
Nope.. sorry that is completely false. A single 75mm TB has almost the exact same total volume as the stock twin 52mm throttlebodies, and although the GT40 intake flows better than the stock 5.8 intake the stock heads on this motor are the big limiting factor so these intake parts alone won't make much difference in power positive or negative.
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
One thing I like about the twin tb is you don't get that hesitation from the big tb throttle tip-in. With stock ecu and no tuning it sometimes was noticeable.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Fleet Owner
Joined: May 2009
Posts: 21,437
Likes: 76
From: Gilbert, PA
Chase, I would not use the GT40 heads. The BEST bang for the buck is a set of aftermarket heads. Either Trick Flow, Ford Racing or a set of AFR would be your best bet.
Also a STOCK 5.0 roller cam from a mustang really wakes these engines up
I am doing exactly this when I tear into my engine to fix the head gaskets
AFR 185 heads
5.0 Roller cam
1.7 roller rockers
Vortech S-unit Supercharger
I should cut my times from 14.74 in the 1/4 to the Low 13s
Also a STOCK 5.0 roller cam from a mustang really wakes these engines up
I am doing exactly this when I tear into my engine to fix the head gaskets
AFR 185 heads
5.0 Roller cam
1.7 roller rockers
Vortech S-unit Supercharger
I should cut my times from 14.74 in the 1/4 to the Low 13s
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
Brad, we were talking about the ho roller cam earlier. There are better cams on the market for doing what you want, granted they cost more than the 25$ you can get an ho cam for, or just get when you buy an engine to rebuild. But with you using boost, the stock ho cam will be a good performer.
While it is an upgrade, there are better cams out there to better fill the needs of a truck engine. (Are you doing this to the lightning or the bronco)
While it is an upgrade, there are better cams out there to better fill the needs of a truck engine. (Are you doing this to the lightning or the bronco)
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
We aren't derailing the thread, we talked about cam choice earlier.
I know the ho cam is used a lot.. With positive results. I'm just saying there are better ones on the market for doing what you want in a truck.
I know the ho cam is used a lot.. With positive results. I'm just saying there are better ones on the market for doing what you want in a truck.
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 185
Likes: 0
Chase, I would not use the GT40 heads. The BEST bang for the buck is a set of aftermarket heads. Either Trick Flow, Ford Racing or a set of AFR would be your best bet.
Also a STOCK 5.0 roller cam from a mustang really wakes these engines up
I am doing exactly this when I tear into my engine to fix the head gaskets
AFR 185 heads
5.0 Roller cam
1.7 roller rockers
Vortech S-unit Supercharger
I should cut my times from 14.74 in the 1/4 to the Low 13s
Also a STOCK 5.0 roller cam from a mustang really wakes these engines up
I am doing exactly this when I tear into my engine to fix the head gaskets
AFR 185 heads
5.0 Roller cam
1.7 roller rockers
Vortech S-unit Supercharger
I should cut my times from 14.74 in the 1/4 to the Low 13s
Fleet Owner
Joined: May 2009
Posts: 21,437
Likes: 76
From: Gilbert, PA
Too bad you didn't get the seat too. Title come with it? I see it is a 93 cab
Thread Starter
|
Senior User
Joined: Jan 2010
Posts: 185
Likes: 0
no title it was cheaper to buy the cab than replace the windshield $500 for complete cab