LT1-LT4 Modifications 1993-97 Gen II Small Block V8

First timer here. need some tips

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Old Jul 25, 2013 | 08:38 PM
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Red face First timer here. need some tips

New to the forums.Picked up a 1996 T/A WS6 for $2200. got it running stronhg after new opti and engine rebuild. I've got about 32k on the rebuild and I have a little extra cash set aside for some upgrades. As of now the only mods are Hooker LT's, GMMG exhaust, and CAI. stock 4l60e with 3.73s. As of now I'm just looking for a good engine setup capable of producing low 400s rwhp/rwtq. any suggestions? advice will be well appreciated.
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Old Jul 25, 2013 | 09:15 PM
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AI or LE should get you there no problem. Call one of them up for a head/cam package (be sure to add a tune with that). When you rebuilt the engine did you do anything like bore or stroke it?

P.S. forgot to ask, what's your budget? That will have a LOT to do with how much power you can make.
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Old Jul 25, 2013 | 09:22 PM
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stock bore & stroke. upped pistons to 11:1. no time to dyno, but engine couldn't be happier. really don't want to break low 400s and murder the diff. I don't want to break $3000 with the tune and all. wanna save the rest for brakes/ suspension
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Old Jul 25, 2013 | 09:38 PM
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With the mods you have right now, while it may not require it, it'd benefit from a mail order tune. But since you want to start digging into the motor I'd hold off. I'd try looking on here for a set of used heads. You can get a head/cam package new from Lloyd for a decent price, but it'd be hard to stay inside that budget with new parts. A lot of people forget about all the other things you need with h/c. Since you've got an A4 the diff should last longer than with an M6 (though that's not always the case). Some other people who've done h/c swaps should chime in. I got lucky and got most of my stuff on the cheap from a buddy who helped me build up a roller, so I don't have much experience on how much everything costs.
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Old Jul 26, 2013 | 05:10 AM
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Typically horsepower doesn't kill the rear end - traction does. As long as you don't run a super sticky tire you can add all the horsepower you want within reason.

The "diff" will hold up just fine (pretty sure you mean the ring/pinion).
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Old Jul 26, 2013 | 08:38 AM
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There have been those who've broken diffs on the street with street tires. Shock to the driveline is a 10-bolt's worst enemy. Pop the clutch enough times whether it's down or up shifting, or even putting in an aggressive clutch can be enough for spider gears or ring/pinoin gear teeth to cut loose.
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Old Jul 26, 2013 | 10:50 AM
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Thanks for the tip. I know the stock 7.5s are very weak, but I'm not really planning to do any drag passes. I'm running stock tire sizes for now.
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Old Jul 26, 2013 | 01:09 PM
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Originally Posted by YAC-WS6
Thanks for the tip. I know the stock 7.5s are very weak, but I'm not really planning to do any drag passes. I'm running stock tire sizes for now.
Your 10 bolt should do fine then. Do you have an auto or manual. Auto's a generally much softer on rear end, meaning you can run a lot more power without worries.
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Old Jul 26, 2013 | 02:52 PM
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H/C/I from Lloyd will put you where you want to be power wise with a tune, but you will be just about at your budget limit. You also have to factor in that since you will be sucking in more air, you're going to want to add fuel to that. Bigger injectors, better fuel pressure regulator, and 255lph fuel pump will definitely help put the build together. Bigger throttle body if you do port the intake as well will help.
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Old Jul 26, 2013 | 03:07 PM
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Originally Posted by TimmyZ28
H/C/I from Lloyd will put you where you want to be power wise with a tune, but you will be just about at your budget limit. You also have to factor in that since you will be sucking in more air, you're going to want to add fuel to that. Bigger injectors, better fuel pressure regulator, and 255lph fuel pump will definitely help put the build together. Bigger throttle body if you do port the intake as well will help.
Injectors and pump for sure. I think the regulator should be fine. I think Ed ran his to a lot more than 400hp.
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Old Jul 26, 2013 | 03:22 PM
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Yeah, you're probably right about the regulator. I only changed mine because the diaphragm inside was bad lol.
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Old Jul 26, 2013 | 03:47 PM
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Originally Posted by TimmyZ28
Yeah, you're probably right about the regulator. I only changed mine because the diaphragm inside was bad lol.
Yeah, that's a good reason to swap out .
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Old Jul 26, 2013 | 05:56 PM
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anyone else notice he said stock '60e? your gonna want a torque converter... 2800-4000rpm will be recommended by most, especially if you want it to drive decent and launch like it should

PS I used to dd my 3600rpm stall. Some people make bigger stalls out to be bad for the street but I love mine.
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Old Jul 26, 2013 | 07:45 PM
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Originally Posted by englundjd
anyone else notice he said stock '60e? your gonna want a torque converter... 2800-4000rpm will be recommended by most, especially if you want it to drive decent and launch like it should

PS I used to dd my 3600rpm stall. Some people make bigger stalls out to be bad for the street but I love mine.
That's why I was telling him to look into used components for a h/c/i swap, since all the little stuff adds up quick. If he's got a stock stall he'll need to upgrade that. If he's got 2.73's he'll need to go bigger.
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Old Jul 26, 2013 | 08:57 PM
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EASY to go over 11:1 compression with the stock shortblock. Before worrying about the engine though start with exhaust CAI, gears etc.
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Old Jul 27, 2013 | 01:31 PM
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Originally Posted by 96capricemgr
EASY to go over 11:1 compression with the stock shortblock. Before worrying about the engine though start with exhaust CAI, gears etc.
Looks like he's got longtubes, exhaust and a cai. If he's going h/c/i he'll need gears anyway. And I think he already has 11 to 1.

OP. I'd start looking on the classifieds for used parts. I still think you could pull it off with your budget. Even if you don't find a set of heads you should be able to find a used TC, some gears, and look at ebay for some injectors. Might be able to find a used fuel pump and hotwire kit too.
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