Procharged LS3 Short-Block Options
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Teching In
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Procharged LS3 Short-Block Options I have an LS3 that I'm going to be getting an F1A Procharger for and looking for 750-800rwhp. Rings will have to be gapped so at that point I may as well run forged pistons and rods and go with a 377. However, if I'm going that far I'm considering a 4" stroke for a bit more low rpm power but the Procharger adds stress to the crank and some say a compstar crank wouldn't work well with an F-series Procharger. Would a dragonslayer or lunati signature series be required? Would a 4" stroke cause more problems than it's worth? Should I just run the factory LS3 crank and run it as a 377? I'm going this far and don't want to cheap out potentially causing issues down the road. A 416 does sound more exciting than a 377
I'm changing my mind too often so some opinions would help get me set. It'll be pump gas with meth.
I'm changing my mind too often so some opinions would help get me set. It'll be pump gas with meth.
Since you are making power with the blower, the cubes are not as needed but you will have a better power curve with it. I personally had problems with a compstar crank and a f1r. At least do a dragonslayer. I do not know the lunati line but I am sure their entry level cranks with have similar problems. My new build is using the dart billet center weighted crank. It is slight more expensive than a dragonslayer but has more features and is a better piece.
416, ABSOLUTELY !
If your concerned about Low end power, then it’s a no brainer. You will have no issues hitting you HP goal & TQ to match. 10:1 compression makes for a fun street ride as well.
My deciding factor was that I was already spending the money, time & energy with a new build ..... why not go bigger. I’m glad I did.
If your concerned about Low end power, then it’s a no brainer. You will have no issues hitting you HP goal & TQ to match. 10:1 compression makes for a fun street ride as well.
My deciding factor was that I was already spending the money, time & energy with a new build ..... why not go bigger. I’m glad I did.
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From: Norn Iron
What weight of vehicle ? Auto or manual ?
Unless it's a particularly heavy manual vehicle where extra low rpm torque might be needed...just stick with stock stroke. Get a decent crank with stock stroke.
Unless it's a particularly heavy manual vehicle where extra low rpm torque might be needed...just stick with stock stroke. Get a decent crank with stock stroke.
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It's a first gen camaro with a 6 speed. Possibly 3400lbs I'm not too sure. So it isn't something that will be daily driven but it is a street car.
2 comments for and 2 against a stroker.. Literally like the voices in my head lol
2 comments for and 2 against a stroker.. Literally like the voices in my head lol
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Wouldn't a stock crank support an F1A? If i'm going with an aftermarket crank I feel like i may as well get the longer stroke version as what would I be losing?
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Since this isn't a daily driver where you're planning on putting a ton of miles on it, you could go with a stroker crank. A 3.900 stroke is a good compromise for adding cubic inches vs engine wear. Bob
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Don’t bother with a stroker. If you get a new crank just get a forged stock stroke dragonslayer. I’m still rocking the stock crank on mine after having a Procharger on my car for the last 6 years.
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From: Norn Iron
I would recommend either stock stroke or 4" as opposed to a custom in between. Purely for the simplicity of being able to buy parts off the shelf when needed. And I say this as I'm running a 3.825 DS crank. When I wanted to replace pistons a couple of years go...as expected I had to get them custom made, there is nothing available on the shelf for this.
But as the longer stroke can weaken the crank, pull the pistons further out of the bore....unless you absolutely need that extra torque I just dont see it as being worth it.
The F1 is not a small blower, so entirely up to you and how long/hard you might use it as to how long a stock crank might last. It would probably be a very long time. But if building the rest of the motor, I'd just put a decent crank in there to be sure.
Aven an LS9 short motor would be a good base.
But as the longer stroke can weaken the crank, pull the pistons further out of the bore....unless you absolutely need that extra torque I just dont see it as being worth it.
The F1 is not a small blower, so entirely up to you and how long/hard you might use it as to how long a stock crank might last. It would probably be a very long time. But if building the rest of the motor, I'd just put a decent crank in there to be sure.
Aven an LS9 short motor would be a good base.
If you don’t already have the headunit I wouldn’t just get a D1SC or D1X for your targeted power goal. Either will make what you want and be in the blowers efficiency range. If you may want more in the future the F1A makes sense cause it is capable of more than 700-800
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If I go the route of an aftermarket forged crank I almost feel like I have to go with a stroker or I'd be kicking myself if I didn't as the cost is basically the same.