Turbo guys, step in.

[64nailhead]

I'm actually looking at the holly sniper system. Looks like a carb but is a self contained efi unit. Been reading a lot of good reviews. And I would fab my own headers. Not the first time I've done that. This is gonna be cool

Comes down to your budget, your skills, and your concern with appearance. Personally I'm no fan of any TBI setup, but that is only my preference. From a budget standpoint though, the FiTech is impossible to beat. If you choose that route, then don't mess with the 600HP unit - 600HP with a turbo is like handing a drunk a six pack and telling him to not drink it all. Just about any batch of mismatched parts with a large enough turbo and enough boost is going to make 600HP.

Good luck.

 

[peppers]

There are 2 versions. One is for 600hp the other is for 1150

 

[L67ss]

We are in the process of building a new motor - the last pic is of us (my son with his buddy) getting the old motor - 327 TPI with a 76mm coming out.

Turbo is a a Chinese On3. We are using a $100 E-bay CAC, Tial WG and blow off valve. You're fabrication skills will be put to the test if you intend to fabricate your own headers.

If I started over from scratch with a sub 700HP goal, I would've used a set of headers designed for a dual (twin) setup and a CAC with 2 in's and one out. I would use a couple of Chinese BW366 knockoffs and been on my way.

DO NOT get lured into purchasing a set of the XS Power 'bolt on' single header setups - that setup is a turd. Is it safe to assume that you're looking at a blow through? I say that assuming that your blower motor(s) were carb'ed which implies that you know how to tune a Holley. I'm no Holley tuning officado, so I much prefer, and use, fuel injection. I'm sure you're aware that one good lean WOT pull and kaflooey - doesn't matter whether you have cast, hyper or forged internals - it's just a matter of how much piston mass winds up in the pan 🙂.

Are those xxr 531s? Wasn't aware they were made in 5x4 3/4" bolt pattern

 

[87National]

I'm actually looking at the holly sniper system. Looks like a carb but is a self contained efi unit. Been reading a lot of good reviews. And I would fab my own headers. Not the first time I've done that. This is gonna be cool

Instead of spending the $ on the Holley system, why not put the money towards a complete 4.8 or 5.3 truck motor? If you are on a budget, an ls turbo setup is tough to beat.

 

[64nailhead]

Are those xxr 531s? Wasn't aware they were made in 5x4 3/4" bolt pattern

They are XXR's (number unknown) on 5 x 4.75 pattern.

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I agree with 87 National, the Holley system is a lot of money, but it's easy to install, quick to tune, and can be bought as a complete kit - there is something to be said about that. I've pieced together an EFI system and a turbo system including the fuel system. I believe that I'm better for it due to the knowledge gained, but one thing for sure is that it's not a quick way to get a FI turbo build driving down the road in a hurry for the less experienced.

Swapping an LS motor into a non-LS car, adding a turbo is not an easy proposition until you're onto your second-fifth swap IMHO. The Holley, Fast, etc., systems will never be in one of my builds due to I usually don't have the money to spend unnecessarily and I'm too cheap as well - lol. I'd rather spend the extra money on a better rotating assembly, block, or heads.

 

[Turbo Zach]

Instead of spending the $ on the Holley system, why not put the money towards a complete 4.8 or 5.3 truck motor? If you are on a budget, an ls turbo setup is tough to beat.

Some time it is not about high horsepower or the easier rought. Some people just want to try different things. Nothing about a ls swap is cheap.

 

[HAFROD]

I was thinking about a blow through turbo small block Chevy build last year. I searched and read a bunch. Never did find a step by step and part by part. I'd like to know of a tried and true set up with part numbers for a mild or budget minded set up.

 

[87National]

Nothing about a ls swap is cheap.

If you have basic fabrication skills and don't buy shiny, over-hyped, unnecessary parts.....you can have 6-700 rwhp for around $4k. This includes a complete 4.8/5.3, fuel system, intercooler, exhaust, VS Racing billet 7875 turbo, etc.

To put it in perspective, a new 383 crate motor with half the hp is the same price.

 

[64nailhead]

If you have basic fabrication skills and don't buy shiny, over-hyped, unnecessary parts.....you can have 6-700 rwhp for around $4k. This includes a complete 4.8/5.3, fuel system, intercooler, exhaust, VS Racing billet 7875 turbo, etc.

To put it in perspective, a new 383 crate motor with half the hp is the same price.

Agreed. And I will say it can be done cheaper by $1000 if you can weld/fabricate. But some will not call $3k cheap.

 

[Superdave]

I run the Holley dominator EFI on my tt setup. Pretty amazing capabilities. Tuning is better left to the pro's IMO.