Advanced Induction 243 CNC port gains 49HP/32TQ and 5 tenths/5mph - LS1TECH - Camaro and Firebird Forum Discussion



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Advanced Induction 243 CNC port gains 49HP/32TQ and 5 tenths/5mph

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Old 03-30-2011, 11:13 PM   #1
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Default Advanced Induction 243 CNC port gains 49HP/32TQ and 5 tenths/5mph

This cars 1/4 ET's dropped by 1/2 second, and gained 5mph @ 3800lb race weight after the addition of the A.I. 243 heads.

Anyway, here's the setup on this one...

Previous:
-1998 Z28
-LS6 intake
-Stock TB ported by Spartan
-Stock MAF
-Pacesetter headers w/ TSP True duals
-2002 LQ9 block
-Cam Motion 224/228 113 camshaft
-Stock, unported and unmilled 243's
-Comp 918's
-Big heavy LS7 clutch
-4:11's and 315/35R17 drag radials
Previous #s were 404/368. I will have a graph up soon

Additions:
-Advanced Induction 243 CNC program
-Stock sized sodium filled valves
-PSI 1511 beehive valve springs
-Heads were cut ~.030. Still had more than adequate PTV
-Retuned by Spartan

New #s - We are still running the stock LS6 intake, TB, injectors, and MAF on this run


These heads performed on the dyno, and the track. The car is a blast to drive on the street with the big fat TQ curve.

We just finished installing a ported BBK intake, 85mm TB, 85mm MAF, 85mm lid, and SVO 36's. I will repost #'s once its retune for those additions.

Cheers.

www.SpartanLSXPerformance.com

Last edited by Damian; 03-26-2013 at 11:57 PM.
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Old 03-30-2011, 11:18 PM   #2
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nice gains.

what did the car run before vs now?
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Old 03-30-2011, 11:20 PM   #3
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nice gains.

what did the car run before vs now?
12.5's @ 114'ish. After the heads it's now a solid 12.0 @ 119-120mph car. He's still running on the stock 10 bolt/street tires, @ a 3800 race weight. (and his shifts are slow as ***** too )

If they could get 2-300lbs out of the car and a real drivetrain this car would go low 11's all day long.
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Old 03-30-2011, 11:30 PM   #4
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Just curious, how is a 224/228 still pulling up past 6700ish in a 6.0? I've got a 222/226 in my LQ9 that dies off around 6200.
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Old 03-30-2011, 11:35 PM   #5
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Just curious, how is a 224/228 still pulling up past 6700ish in a 6.0? I've got a 222/226 in my LQ9 that dies off around 6200.
This one starts to run out of steam around 65-6600, but it's a TON of fun on the street. From a roll, this car has outran other cars with 40-50 more HP.

If a car makes TQ where it counts, in the 2-6K range, it's going to haul ***. I build most of my setups based around the idea of getting the car moving with low end TQ, rather than a high revving valve spring snapping 240 duration camshaft that needs 4:56's to go anywhere.
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Old 03-30-2011, 11:41 PM   #6
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tell me about it. But I have no tolerance for anyone driving a 3600 lb car complaining about lack of low end, lol. I'm pushing 5000lbs and a 4l80e. Talk about the need for low end torque.
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Old 03-30-2011, 11:41 PM   #7
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You need a Maggie.
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Old 03-30-2011, 11:54 PM   #8
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Damian - How much does a set from AI set you back, with no core available? Those are great #s, and your cam is very similiar to mine, which is sparking my interest even more.
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Old 03-30-2011, 11:58 PM   #9
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Damian - How much does a set from AI set you back, with no core available? Those are great #s, and your cam is very similiar to mine, which is sparking my interest even more.
You'll need to contact A.I. directly for pricing/availability.

http://www.advancedinduction.com/
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Old 03-31-2011, 01:09 AM   #10
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Who ported the intake and what kind of gains you are looking for.
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Old 03-31-2011, 07:53 AM   #11
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If a car makes TQ where it counts, in the 2-6K range, it's going to haul ***. I build most of my setups based around the idea of getting the car moving with low end TQ, rather than a high revving valve spring snapping 240 duration camshaft that needs 4:56's to go anywhere.
i agree.the first thing i look at on a dyno sheet is how much TQ the motor is making at the start of a pull.the HP peak is not nearly important to me as average power.
almost 350ft.lbs. at 3000rpm,and carries the power up top.excellent power curve.
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Old 03-31-2011, 08:06 AM   #12
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Just curious, how is a 224/228 still pulling up past 6700ish in a 6.0? I've got a 222/226 in my LQ9 that dies off around 6200.
different cam,as well as the heads probably help carry the power up top too,i would imagine.
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Old 03-31-2011, 08:07 AM   #13
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wow thats nice

what CC are the stock chambers?
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Old 03-31-2011, 08:52 AM   #14
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a nice twin to my 243s from AI.. I gained 55 rwhp / 36 lb/ft tq from mine. Before with cam only my best time at the track was 12.5 at 114.53 2.03 60 ft (only went once to track with cam only setup).. after the heads I went 11.79 at 124.69 mph 2.01 60 ft with more mph to go. AI FTW!
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Old 03-31-2011, 08:58 AM   #15
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Quote:
Originally Posted by gtotoocool1 View Post
i agree.the first thing i look at on a dyno sheet is how much TQ the motor is making at the start of a pull.the HP peak is not nearly important to me as average power.
almost 350ft.lbs. at 3000rpm,and carries the power up top.excellent power curve.
here's my graph in RPM.. I didn't get the 474/428 graph in rpm only mph.. but this is a good reference point

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Old 03-31-2011, 10:19 AM   #16
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wow, really wish i would have went with some ai 243's
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Old 03-31-2011, 12:22 PM   #17
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Damn! Hey I remember that car! It's come a long way since last year!
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Old 03-31-2011, 01:23 PM   #18
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Quote:
Originally Posted by 01 ss vert View Post
Damian - How much does a set from AI set you back, with no core available? Those are great #s, and your cam is very similiar to mine, which is sparking my interest even more.
Let's just say the gains for the dollar amount is well worth it and hard to beat. Contact Ron and he will do you good.
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Old 03-31-2011, 01:45 PM   #19
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Damn, I have been strongly considering having a mild port job done on my 799s with a VJ and milling .020-.030

After this I'm considering trying to scratch up the dough...
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Old 03-31-2011, 02:40 PM   #20
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Let's just say the gains for the dollar amount is well worth it and hard to beat. Contact Ron and he will do you good.
AGREED! For the money and power gained, you cant beat AI.
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226cc, 243, 474428, advance, advanced, ai, camaro, eps, gains, heads, induction, inductions, ls2, ported, rwhp

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