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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 09-03-2013, 02:19 PM   #451
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I have my car in stock ! I want to modifying it a bit the engine is not in my plans right now to put supercharger ! that I can do to gain some hp
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Old 09-17-2013, 06:57 PM   #452
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One run, 98 degrees, Spectre CAI.
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Old 09-18-2013, 09:08 AM   #453
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Any 2014 model dynos ??
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Old 09-22-2013, 10:23 AM   #454
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I recommend running as my L99 in a drag ? transmission in D in S ? as traction control ? accelerating before starting ?
L99 drag, use "S" (not D and no paddle shifters)

Traction control OFF, stabilitrak ON (hit the button once)
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Old 09-24-2013, 07:37 PM   #455
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V8 ss

So this is before and after tune. I live in southern ca. I just put long tube headers on I will repost after retune.
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Old 09-24-2013, 07:43 PM   #456
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If you look up my name on YouTube you can see it on the dyno Steve kershner
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Old 10-15-2013, 11:45 AM   #457
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Saturday, 12th, @4600'+
Pfadt Tri-Ys, Cold Air Inductions cai, Foose wheels-29#s back, 91 octane.





On the 3rd pull I inadvertently paddled up from fourth gear and the electronics shut the engine down at ~150mph.
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Old 10-18-2013, 07:49 PM   #458
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Dyno Results

If the moderators want to pulls this thread that is OK but the drivetrain is like the 5th Gen Camaro. The motor is a L92 out of a 2007 Escalade but for all intent it is now a L99. The motor is in a 1965 Buick Skylark and has the 6L80 transmission. Has the TSP VVT3 camshaft with PRC CNC heads and the valve spring upgrade. Has Headman 1 3/4" to 1 7/8" stepped headers. 3" exhaust with a Pypes X pipe. Ported LS3 throttle body. 4" cold air intake made by yours truely.

This was done on a Super Flow chasis dyno which the owner says that it reads about 4% less than a Dyno Jet. I have no way to confirm that. The operator of the dyno was having a devil of a time keeping the transmission in 4th gear. He had to kind of roll into it with the accelerator pedal to keep the transmission from down shifting . In fact we only got one clean run and that is the graph posted. A little later we did get a 473rwhp reading and we did some more fuel trimming after that. Here is the one good graph.

Edit. I forgot to say the tuner got this motor to idle at 700rpm. I did not think it would be posible with the VVT3 camshaft.
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Last edited by 1989GTA; 10-18-2013 at 09:54 PM.
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Old 10-19-2013, 12:12 PM   #459
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This is the first time I had a car tuned on a Super Flow dyno. See above post. I have used Dynojet mostly and my Tahoe once on a Dyno Dynamics. The Dyno Dynamics does read low compared to the others going by first hand experience. I did find this post from someone in the dyno business and found it interesting and probably close to the truth. As is often said a dyno is just a tool. The better it is in repeatability pull after pull the better you can see how the changes you are making in the pull affect the power output.

"The industry leader in number output by far is Dynojet. Their marketing in the mid-90's specifically used the larger output numbers as a selling item.
Next is Mustang, generally about 7% less than Dynojet numbers.
Superflow is about 3% less than Mustang.
Dyna-Pak and Dyno Dynamics are about 3% less than Superflow.
Ok lets make this point again to make sure it's clear. The SAME CAR on the DIFFERENT DYNOS. So our test vehicle output on the various dynos are as follows:

Dyno Dynamics 200hp
Superflow 206hp
Mustang 214hp
Dynojet 226hp"
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Old 10-22-2013, 07:17 PM   #460
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Quote:
Originally Posted by SSeniorMoment View Post
Saturday, 12th, @4600'+
Pfadt Tri-Ys, Cold Air Inductions cai, Foose wheels-29#s back, 91 octane.





On the 3rd pull I inadvertently paddled up from fourth gear and the electronics shut the engine down at ~150mph.
Does that run at the top say 434.9 torque? Any idea where you picked up that extra 28lbs of torque @ 150RPM lower?
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Old 11-03-2013, 02:09 PM   #461
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I just realized something when I was looking at my dyno data sheet. See post 458. It looks to me as if this pull was done in 3rd gear instead of 4th going by the mph. I have the Drag Race 2000 simulation program and the mph and rpm matches pretty close with that in 3rd gear. If it was forth gear the mph would have been 120+mph at that rpm.

Here is the data sheet. Keep in mind in had to kind of roll into it in the lower rpms to keep from down shifting and in this case 2nd gear. I will have to get this car back on the dyno.

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Old 11-16-2013, 06:43 PM   #462
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Bolt-on 2013 L99 yes L99 made 412rwhp 427rwtq








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Old 12-03-2013, 11:52 PM   #463
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I don't think I posted from back in July. Dyno'd at Cunningham Motorsports after Stainless Works LT Headers and Retro Catback Exahust, Vmax Ported Thottlebody, Roto-Fab Intake, and tune. 371rwhp. It's a Mustang Dyno and I heard it would be above 400rwhp on a DynoJet?

I want more!



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Last edited by Schmidty; 12-15-2013 at 09:25 PM.
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Old 01-26-2014, 10:21 PM   #464
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Just dynoed my 2013 L99 with my VVT cam and hand ported stock heads! 492 RWHP and 449 RWTQ
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11.44 @118.75 Bolt-no Record-After H/C 10.93 @126.86
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Old 01-26-2014, 10:47 PM   #465
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Those are great numbers. 400rwtq from around 3500rpm up to around 6400rpm. Power hangs on to around 7000rpm. Very good. Very nice.
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Old 01-28-2014, 12:05 PM   #466
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Nice numbers! What was done between the two runs, the tune?

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Originally Posted by Schmidty View Post
I don't think I posted from back in July. Dyno'd at Cunningham Motorsports after Stainless Works LT Headers and Retro Catback Exahust, Vmax Ported Thottlebody, Roto-Fab Intake, and tune. 371rwhp. It's a Mustang Dyno and I heard it would be above 400rwhp on a DynoJet?

I want more!
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Old 02-04-2014, 12:08 PM   #467
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Hi,

I'm new here and I have some questions about L99 Bolt-ons power:

I've been reading about bolt-ons and dyno.. and numbers just don't add up in my mind.

1. Stock LS3 has 426HP at crank
2. Stock L99 has 400HP at crank
3. L99 responds to tune/mods better then LS3

However by reading these threads I see that bolt-on/tune LS3 usually gets 420-430 RWHP which matches stock HP at crank and L99 gets 370-380 RWHP which is 20-30HP lower than stock crank..

So how come L99 responds better to tune than LS3 yet final numbers are lower?

What am I missing?

Sasha
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Old 02-04-2014, 12:24 PM   #468
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not sure were you read L99 get more performance from mods than an LS3 but I believe that it is untrue. You can say that L99 feels like they wake up more when you put a great tune in it. Also LS3 usually dyno stock at 370hp and if they get an intake and tune they are usually still under 426hp.

p.s remeber our parasitic lose that we get for having an automatic which is 20% of the crank hp compared to the LS3 15% lose.
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Old 02-04-2014, 12:47 PM   #469
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Quote:
Originally Posted by sasha055 View Post
Hi,

I'm new here and I have some questions about L99 Bolt-ons power:

I've been reading about bolt-ons and dyno.. and numbers just don't add up in my mind.

1. Stock LS3 has 426HP at crank
2. Stock L99 has 400HP at crank
3. L99 responds to tune/mods better then LS3

However by reading these threads I see that bolt-on/tune LS3 usually gets 420-430 RWHP which matches stock HP at crank and L99 gets 370-380 RWHP which is 20-30HP lower than stock crank..

So how come L99 responds better to tune than LS3 yet final numbers are lower?

What am I missing?

Sasha
LS3 make 370-375 RWHP
L99 make 330-335 RWHP

Both Respond equally well to CAI, Headers and tuning both coming in at 40 RWHP over stock.

The A6 Auto also suffers from Torque management and Granny Shifts, which when tuned offers additional performance, and feel.

Ted.
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Old 02-07-2014, 08:18 PM   #470
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So i just bought my gen5 and has cold air intake and exhaust it is an automatic what is the first mod i should do? headers? tune? not sure where to start looking for some opinions. Cant afford to do a whole lot so looking for best bang for buck also.
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Old 02-08-2014, 05:15 AM   #471
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So i just bought my gen5 and has cold air intake and exhaust it is an automatic what is the first mod i should do? headers? tune? not sure where to start looking for some opinions. Cant afford to do a whole lot so looking for best bang for buck also.
Hello and Welcome!

A SCT X3 tuner W JRE custom tune would make a significant difference.

When your purchase the SCT tuner from JRE the first custom tune is FREE for your current mods.

Then as the budget allows you purchase a set of Headers from JRE and the tune update for the Headers is FREE, and So on and So on.

I have a wide variety of LT headers available to suit your budget.

A Cai headers and JRE tune are the best bang for the buck worth 40 RWHP and 50 lb torque on the L99.

Ted.
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Old 02-08-2014, 05:45 PM   #472
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Originally Posted by JANNETTYRACING View Post
Hello and Welcome!

A SCT X3 tuner W JRE custom tune would make a significant difference.

When your purchase the SCT tuner from JRE the first custom tune is FREE for your current mods.

Then as the budget allows you purchase a set of Headers from JRE and the tune update for the Headers is FREE, and So on and So on.

I have a wide variety of LT headers available to suit your budget.

A Cai headers and JRE tune are the best bang for the buck worth 40 RWHP and 50 lb torque on the L99.

Ted.

Thanks Ted that sounds like a start for sure. I have seen a lot about L 99 to LS3 conversion what all does that include?
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Old 02-08-2014, 08:38 PM   #473
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Hmmm.now you have me thinking of getting an SCT and doing a tune...even though I only have CAI and Solo HFCs on an L99.

Damn you ;-)

Quote:
Originally Posted by JANNETTYRACING View Post
Hello and Welcome!

A SCT X3 tuner W JRE custom tune would make a significant difference.

When your purchase the SCT tuner from JRE the first custom tune is FREE for your current mods.

Then as the budget allows you purchase a set of Headers from JRE and the tune update for the Headers is FREE, and So on and So on.

I have a wide variety of LT headers available to suit your budget.

A Cai headers and JRE tune are the best bang for the buck worth 40 RWHP and 50 lb torque on the L99.

Ted.
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Old 02-08-2014, 08:48 PM   #474
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L99 with CAI, Solo HFCs and Solo Axle Back Exhaust.

354.65rwhp & 358.61 tq

I picked up about 11hp & 13tq with the Solo HFCs.
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Old 02-10-2014, 09:50 AM   #475
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Just did a baseline before stall and dyno tune. 354 hp/383 tq on a dynojet.
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