hp/tq/ and 1/4 with a 76mm/78mm turbo

[DETROITMUSCLE]

depends on what your doing. I think the 5.3 and 76mm T4 route is sweet to be honest. If you look around you can find stock 5.3 shortys for dirt cheap (ex $250-400) all day. With them being so cheap I'd be very tempted to have some fun and beat the snot out of them as is. If you truly want reliability though you'll either be stuck on a 10psi or lower tuneup or have to toss some pistons and rods in them. Opening the top ring is easy and cheap and I would recommend it to somebody that has the know how.

The LS2 will be just as good as a 5.3 the downside is most people tend to under turbo LS motors and 364ci is a good bit of cubes for a small T4 flanged turbo to handle. Backpressure then becomes the issue as the motor moves more air and the turbo can't keep up. For example a V6 motor like the ones in the grand nationals can typically make better use of a smaller turbo because its moving less air generally and therefor can create more boost pressure with less backpressure.

As for controlling a 76/75 with a single gate thats all very dependant on wastegate routing. Many companies fall short in this aspect and the band-aid fix can be to simply use a larger wastegate. Proper routing, however, will be the better fix and can allow use of a smaller gate to a certain point.

[Formula Z]

So hows the huron speed system in that regard? Im considering trading the ls2 shortblock and heads for tbe 5.3 and some cash

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[c0ncEpT]

So hows the huron speed system in that regard? Im considering trading the ls2 shortblock and heads for tbe 5.3 and some cash

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The Huron Speed kit is great. Use a single 76mm with the 5.3 and go fast. Slap on the PT88 when you wanna get silly

There is a member on here with a Huron Speed kit and a 7675 and he hasn't said anything about boot control issues down to 10PSI

[Formula Z]

Well give me the 88mm

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[Formula Z]

Its a street car. Im not putting a cage in it so i better stick w the 76

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[DETROITMUSCLE]

Well give me the 88mm

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I have one for sale, already been test fitted on the kit would probably need a custom downpipe or just run it out the fender.

[Formula Z]

Price? Not really needing, it right away but id like to know what they are going for

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[Formula Z]

Also what size injectors will be needed?

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[kammi10]

Also what size injectors will be needed?

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an 88mm is way to big for a 5.3 and what u plan on doing with it.. 60lb injectors are what i would go with

[Nocooler]

Mike - what are your goals and budget?

5.3, z06 cam, good valve springs, 60/80 lb injectors, good fuel system and a 76mm will make 550+rwhp - the torque curve will be fat and you'll smile like a little girl every time it spools up.

Don't kid yourself 550rwhp will be a hand full on the street and tear up the track.

[Formula Z]

No real goals. Budget depends on how fast i want it back on the street. Already kinda decided it wont be back til spring 2014. Again im not putting a cage in it, so not much track time

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[Formula Z]

Where do i get a z06 cam?

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[hoogiesngrinderz]

Where do i get a z06 cam?

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GM # 12565308

(yes, that comes from memory lots of search time)

[DETROITMUSCLE]

is there a limit to hp for street cars? You need to have realistic goals either based on hp, et, or budget. I would sell my turbo for $1K as its freshly rebuilt and should be ready to go and will make north of 800rwhp with the right motor and fuel system but I doubt many peeps looking to buy a budget kit would be real interested in it.

[1999Black_Z28]

Where do i get a z06 cam?

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LS1tech classifieds or you can buy new for $260 from SDPC