Carb and Inj question
Thread Starter
TECH Apprentice
Joined: Sep 2013
Posts: 355
Likes: 19
Carb and Inj question On a turbo build, is injection easier to control timing and the tune? In other words, you hear of burnt pistons, head gaskets etc from a bad tune, I was thinking of blow through carb, but by the time you buy boost control timing retard and various other stuff it'd probably be easier and safer to just go with injection, right? I have all the stuff out of the truck, pcm, wiring, and inj and intake. Can you pull timing with added boost with the tune along with adding more fuel? I'm going with aftermarket pistons and rods, but this will be the 1st turbo build for me so I got to ask stupid questions. Don't want to figure it out on the 3rd short block if you know what I mean. If I do inj, I'll go with bigger injectors.
Staging Lane
Joined: Oct 2006
Posts: 82
Likes: 0
From: Tucson, AZ
If you want the best drivability and results I would stick with injection. Also the tuner can add/remove fuel based on the boost pressure. If you look at the hp tuner program it has different cells for the manifold pressure. That's where the tuner will calculate the right VE and timing. With your worry of things going bad. There's always a chance of that happening (I'm sure you already know haha). But having a good, reputable tuner helps a lot. When I had my civic my tuner told me no 5th gear pulls cause my intercooler was too small. He said I'd blow my motor. Guess what happened when I did a freeway pull.. So I guess what I'm trying to say is make sure all your parts support your build too!
On a turbo build, is injection easier to control timing and the tune? In other words, you hear of burnt pistons, head gaskets etc from a bad tune, I was thinking of blow through carb, but by the time you buy boost control timing retard and various other stuff it'd probably be easier and safer to just go with injection, right? I have all the stuff out of the truck, pcm, wiring, and inj and intake. Can you pull timing with added boost with the tune along with adding more fuel? I'm going with aftermarket pistons and rods, but this will be the 1st turbo build for me so I got to ask stupid questions. Don't want to figure it out on the 3rd short block if you know what I mean. If I do inj, I'll go with bigger injectors.
good luck and post up some pics of your setup once you get your project rolling
I am prob the wrong guy to add to this, lol, but after a string of blow thrus I tried FI-I used the Holley HP, sup. one of the easiest systems to tune-for me I found it to complicated, to many things to adjust, where I could do a simple plot on the MSD 6010 box for timing, and a couple simple jet changes or none at all to a CSU prepped carb, and I was in business
I spent a summer of tuning, car acting up for no reason, wasn't a good experience for me, maybe this year will be better-if there were someone close that knew the Holley system, it would help, plenty of HP tuners
being somewhat computer challenged really hurt me, I prided myself in being a do it yourselfer, but this computer stuff kicked my azz
I will give it credit though, very simple to tune WOT, throw in a timing #, and AFR #, it was close-it was the start/low speed drivability I couldn't get to my liking
I spent a summer of tuning, car acting up for no reason, wasn't a good experience for me, maybe this year will be better-if there were someone close that knew the Holley system, it would help, plenty of HP tuners
being somewhat computer challenged really hurt me, I prided myself in being a do it yourselfer, but this computer stuff kicked my azz
I will give it credit though, very simple to tune WOT, throw in a timing #, and AFR #, it was close-it was the start/low speed drivability I couldn't get to my liking
