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

Im at the point...

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Old Jan 13, 2007 | 03:37 AM
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Default Im at the point...

Now where there arent many cheap things left to do...power wise. So im getting ready to take the next step and look into doing a cam or Nitrous. At this moment I have $300 to spend and im looking at which way to go.

1. Buy the cam/pushrods and save for the rest (timing set,EWP,RR,Springs,Hardware,Injectors,etc...) and complete by mid-end of june...and hope for 335-345 rwhp.

2. Buy HSW Wet Kit and save for all the safety equipment...(FPSS,Mallory 685, Purge,Bottle Heater,etc...)Spray a 100-125 shot and trap 110+ I could have this finished in a few months...which is great for me b/c im impatient lol.

I dont want a 1/4 mile monster...I dont care if I run a 13.5@110 b/c 95% of my runs will be on the street and 75% of those from a roll.

This is my DD and I drive it 50 miles to school and back 3x a week. It has almost 100K and I dont need something to fly apart lol. I figure the spray will be safer considering its not constant and if taking all safety precautions should handle a 100 shot just fine.

All suggestions are welcome...
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Old Jan 13, 2007 | 04:02 AM
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Cam.

Your going to put more wear and tear using nitrous with a high octane like you stated. And a cam will be power thats always there.

Tony.
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Old Jan 13, 2007 | 11:58 AM
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Originally Posted by Speed Density
Cam.

Your going to put more wear and tear using nitrous with a high octane like you stated. And a cam will be power thats always there.

Tony.
I disagree. Nitrous is very safe when done properly and is going to offer less wear and tear because he's not going to need to rev any higher like he would with a cam.

Also, if I were driving a cammed lt1 50 miles a day I wouldn't be happy with the 10mpg or less that's associated with that, especially on a student's budget.
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Old Jan 13, 2007 | 01:19 PM
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Are you doing the labor on the cam yourself? The n20 at a reasonable level with the right safety gear is fine and will net you more of a gain.
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Old Jan 13, 2007 | 01:49 PM
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My mechanic will do the cam install and tune, for a great price so thats no concern. All I want to do is spray a 100-125 shot when I need it. I dont want a 11 sec race car...just a quick DD that can do some damage from a roll...

If I spray I will do it right...

HSW Wet Kit,FPSS,Mallory 685,Heater,Purge,etc....so I dont think it will compromise the structural strength of the motor.
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Old Jan 13, 2007 | 01:52 PM
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Originally Posted by Mystic95
All I want to do is spray a 100-125 shot when I need it. I dont want a 11 sec race car...just a quick DD that can do some damage from a roll...
With a 100 shot you'd actually be in the 11's with a very street able car.
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Old Jan 13, 2007 | 02:03 PM
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Really??? I figured I could get a low 12 or so...I wouldnt spray until 2nd gear and not spray through the shifts...I really want a good trap b/c thats where my races will mostly be from. If I could trap 110 or so I would be so happy...
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Old Jan 13, 2007 | 02:51 PM
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Originally Posted by Mattybz28
I disagree. Nitrous is very safe when done properly and is going to offer less wear and tear because he's not going to need to rev any higher like he would with a cam.

Also, if I were driving a cammed lt1 50 miles a day I wouldn't be happy with the 10mpg or less that's associated with that, especially on a student's budget.

Even with nitrous being safe it still doesnt keep the internals togheter. The extra cylinder pressure on a high milage motor is stress. Its and extra 125hp right on the spot. And considering its a DD you would think the all around power would be nice instead of having the power at certian times.

As for MPG, who says he is going to get 10 or less? He could pull of a 14+ easy with a tune thats dialed in and a light foot.

Good Luck!

Tony.
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Old Jan 13, 2007 | 02:55 PM
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i disagree about the spray. If i was in your shoes i'd grab a new Comp or crane shelf cam and save for springs, chain, RR, and i'd use the stock lifters since your cam only.( pending on miles). With the right cam you dont have to spin your motor any higher than you do now. Getting the Right cam for a bolt on car that you drive isnt hard. I'd suggest a CC503, CC305, or the GM 846. Summit carries all of these cams and the run about 250. After you decide, send your PCM to fastchip.com ( Ed Wright) and have him tune it. I think you'll be happier
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Old Jan 13, 2007 | 03:00 PM
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Im waiting on my install guy to get back with me...if he can do all the extras associated with the spray then I will probably go that route.

The car will have over 100K on it by the time I install the cam or spray. I figure I would need new injectors if I cam it b/c they are at 90% right now...As for the tune I will have the installer tune it, he's damn good at what he does and hes a local guy so If I have any problems they can get resolved quickly.
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Old Jan 13, 2007 | 03:06 PM
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Originally Posted by Mystic95
Im waiting on my install guy to get back with me...if he can do all the extras associated with the spray then I will probably go that route.

The car will have over 100K on it by the time I install the cam or spray. I figure I would need new injectors if I cam it b/c they are at 90% right now...As for the tune I will have the installer tune it, he's damn good at what he does and hes a local guy so If I have any problems they can get resolved quickly.

Good luck with that.
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Old Jan 13, 2007 | 04:17 PM
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if you spray, make sure you clean the injectors first and mine came with a extra fuel pump. i used it a lot, but then when to a supercharger. which ran ok, rain was always a problem.

and with nitrous its continous extra money, yeah a cam might make you burn more gas, but nitrous only gonna give you 10-15 shots per bottle depending on the size of the bottle you buy, then $30-$40 to refill it each time. so thats something to think about. my car ran ok with it, but it had low miles when i installed it. good luck with either route you go.
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Old Jan 13, 2007 | 04:21 PM
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Yea I just got to thinking of that lol. I have my cam/pushrods/guideplates in the cart at this moment...im just debating still what to do. If i just order it then I will have to stick with it lol.

Thanks for all the opinions and help guys.
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Old Jan 13, 2007 | 04:38 PM
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The nitrous can be run just as safely as the cam as long as you get the tune dialed in.

I'd lean more towards piecing a kit together, and look at getting higher quality (and larger) solenoids and you can actually run a progressive unit. This will help protect your car from hitting all of the spray at once -- which prevents the lean spike that is common when a wet kit first hits, especially a larger one. With the spray coming in progressively it will also not put as much abuse on the cylinders all at once.

With my extremely moderate cam (.52X lift) and a 100 shot I'm trapping 118 spraying after the 60'

One thing you might want to take into consideration if you haven't yet thought about it -- if your transmission is still factory minus a shift kit or cooler, I'd go ahead and start pricing out a rebuild. That extra power from either of the stuff you've got planned could possibly put it over the edge. Soon after my cam swap, I had to rebuild my 4L60E with only 55,000 miles on it.
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Old Jan 13, 2007 | 04:39 PM
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I love my cam and get between 14 and 17 mpg depending how it's driven. And it sounds pretty sweet too!
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