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Forum: Tuning / Diagnostics -- engine and transmission 10-05-2013, 06:07 PM
Replies: 4
Views: 569
Posted By Roger Ramjet
I had a similar MAP problem with a twin turbo...

I had a similar MAP problem with a twin turbo Camaro tune.
I suggest using the old MAP sensor and old cal data to find engine off MAP and engine idle MAP. Then using the new MAP sensor and the 2...
Forum: Tuning / Diagnostics -- engine and transmission 02-16-2013, 05:47 AM
Replies: 31
Views: 3,762
Posted By Roger Ramjet
LSA 198/216 LS3 204/211 I don't think...

LSA 198/216
LS3 204/211

I don't think there is enough difference in overlap to matter at idle. But, I don't currently have access to a LS3 for a test.
Anyone want to try?


RAMJET GHOST CAM...
Forum: Tuning / Diagnostics -- engine and transmission 02-14-2013, 05:50 PM
Replies: 6
Views: 552
Posted By Roger Ramjet
It takes 2 GM credits to read and save the...

It takes 2 GM credits to read and save the calibration for each VIN. If you buy enough credits (12) of a model and year (2010 Camaro), additional VINs are free.
Forum: Tuning / Diagnostics -- engine and transmission 02-14-2013, 05:43 PM
Replies: 31
Views: 3,762
Posted By Roger Ramjet
This is a LSA but LS3 and L99 can be done too. ...

This is a LSA but LS3 and L99 can be done too.

http://www.youtube.com/watch?v=O45NnshM8LM&feature=youtu.be

The rest of the story:

http://www.hptuners.com/forum/showthread.php?t=42071
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 10-18-2012, 04:56 PM
Replies: 454
Views: 67,443
Posted By Roger Ramjet
Glad you like the pipes CM. The big Magnaflows in...

Glad you like the pipes CM. The big Magnaflows in the rear kept us from putting them in the normal place.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 10-18-2012, 08:42 AM
Replies: 454
Views: 67,443
Posted By Roger Ramjet
Yet another version of the Helmholtz drone...

Yet another version of the Helmholtz drone solution.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 10-04-2012, 05:05 PM
Replies: 4
Views: 328
Posted By Roger Ramjet
Looks like someone added another 02 bung for a...

Looks like someone added another 02 bung for a wide band O2 sensor tuning aid ahead of the normal PCM narrow band O2 bung. Most auto parts stores carry O2 bung plugs. Install the plug in the hole not...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-30-2012, 03:30 PM
Replies: 20
Views: 965
Posted By Roger Ramjet
My guess - catcon internal breakup.

My guess - catcon internal breakup.
Forum: Tuning / Diagnostics -- engine and transmission 09-24-2012, 08:30 PM
Replies: 6
Views: 785
Posted By Roger Ramjet
A6 - YES! But you must get a real trans tune. ...

A6 - YES! But you must get a real trans tune.

M6, not so much.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-22-2012, 08:23 PM
Replies: 19
Views: 1,202
Posted By Roger Ramjet
Could be tire size change or reduction of torque...

Could be tire size change or reduction of torque converter slip.
Forum: Tuning / Diagnostics -- engine and transmission 09-04-2012, 06:34 AM
Replies: 9
Views: 1,288
Posted By Roger Ramjet
I agree with what Redline said! My previous post...

I agree with what Redline said! My previous post was trying to point you to learn specific things to get you going quickly.
Forum: Tuning / Diagnostics -- engine and transmission 09-03-2012, 07:29 PM
Replies: 9
Views: 1,288
Posted By Roger Ramjet
I know I'll draw some comments, but here it is...

I know I'll draw some comments, but here it is anyway.
New GM engines (2007 up) can be easily tuned for most normal changes (CAI, headers, cam, etc.) by doing this:
Force pure MAF mode operation....
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-03-2012, 02:51 PM
Replies: 13
Views: 1,079
Posted By Roger Ramjet
If you have an auto trans, you will want a custom...

If you have an auto trans, you will want a custom trans tune. It's the best single change you can make.

For a manual trans, engine torque management is the main gain. The source doesn't much...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-03-2012, 02:44 PM
Replies: 63
Views: 2,315
Posted By Roger Ramjet
4.11s are a great choice for manual trans cars.

4.11s are a great choice for manual trans cars.
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 09-01-2012, 03:35 PM
Replies: 39
Views: 2,747
Posted By Roger Ramjet
I tuned the tap shift to downshift to 1st too...

I tuned the tap shift to downshift to 1st too until I forgot that tap shift was selected and zinged the motor before I realized what I had done. Then I saw why GM didn't do the downshift to 1st.
...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-01-2012, 06:32 AM
Replies: 454
Views: 67,443
Posted By Roger Ramjet
Repeating from post #1, here are the...

Repeating from post #1, here are the calculations:

http://www.camaro5.com/forums/attachment.php?attachmentid=207086&stc=1&d=1297738549
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-31-2012, 09:52 AM
Replies: 454
Views: 67,443
Posted By Roger Ramjet
Red, you know better than most, only the front...

Red, you know better than most, only the front joint of the U is open to the exhaust. The rear joint is butted against the pipe instead of installing a cap. Much more rigid this way.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-29-2012, 09:15 PM
Replies: 29
Views: 1,757
Posted By Roger Ramjet
You might try the Helmholtz trick - like this! ...

You might try the Helmholtz trick - like this!

Here are the calculations:
http://www.camaro5.com/forums/attachment.php?attachmentid=207086&stc=1&d=1297738549
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-29-2012, 09:06 PM
Replies: 29
Views: 1,757
Posted By Roger Ramjet
Stock cats lasted 6k miles on this install before...

Stock cats lasted 6k miles on this install before it started blowing brown dust (ceramic cats).
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-29-2012, 08:47 PM
Replies: 454
Views: 67,443
Posted By Roger Ramjet
Still around - doing this to other platforms!

Still around - doing this to other platforms!
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-20-2012, 05:37 AM
Replies: 454
Views: 67,443
Posted By Roger Ramjet
S.M. City Motorsports in southern MD did the...

S.M. City Motorsports in southern MD did the system shown in the first post of this thread. Call 301-863-6499.
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 08-05-2012, 09:12 PM
Replies: 30
Views: 2,043
Posted By Roger Ramjet
I'm with Higgs. I have truned the DFCO off and...

I'm with Higgs. I have truned the DFCO off and still had decel poping on LS3 motors. Increasing entry and exit timing lessens the pop. The automatics don't seen to have any noticeable pop.
Forum: Camaro ZL1 Forum - ZL1 Specific Topics 08-05-2012, 08:59 PM
Replies: 68
Views: 5,395
Posted By Roger Ramjet
Don't have any ZL1 experience yet, but my GT500...

Don't have any ZL1 experience yet, but my GT500 had little/no traction on the street. It's disappointing and embarrassing when you can't hook up!
Forum: General Automotive + Other Cars Discussion 04-27-2012, 06:25 PM
Replies: 6
Views: 433
Posted By Roger Ramjet
Elron is a silver base tC automatic. Nothing...

Elron is a silver base tC automatic. Nothing added or changed - on the outside.
Forum: General Automotive + Other Cars Discussion 04-27-2012, 06:23 PM
Replies: 6
Views: 433
Posted By Roger Ramjet
You mean, like this?

You mean, like this?
Forum: General Automotive + Other Cars Discussion 04-27-2012, 09:32 AM
Replies: 6
Views: 433
Posted By Roger Ramjet
Anyone notice the Camaro exhaust tip? I just...

Anyone notice the Camaro exhaust tip? I just happened to have some laying around.
Forum: General Automotive + Other Cars Discussion 04-27-2012, 09:29 AM
Replies: 6
Views: 433
Posted By Roger Ramjet
About 300 HP. Boost starts about 3000 RPM but the...

About 300 HP. Boost starts about 3000 RPM but the real action happens when the VVT kicks in at 4000 RPM. Then the 6 speed auto starts changing gears. It's a blast to drive!
Forum: General Automotive + Other Cars Discussion 04-26-2012, 08:53 PM
Replies: 6
Views: 433
Posted By Roger Ramjet
Elron, the Scion-ce Project

Elron is a 2012 Scion tC, automatic. It has rolled about 4000 miles since getting the 'package'. There is abundant turbo noise with explosive power above 4000 RPM.
Forum: Tuning / Diagnostics -- engine and transmission 04-22-2012, 04:46 PM
Replies: 16
Views: 1,689
Posted By Roger Ramjet
I have a 07 Corvette TT on stock engine tune file...

I have a 07 Corvette TT on stock engine tune file but I don't think that will help. With that engine I would force pure MAF mode.
Forum: Tuning / Diagnostics -- engine and transmission 04-20-2012, 09:44 PM
Replies: 13
Views: 1,539
Posted By Roger Ramjet
Suggest leaving TUTD mode as is. An automatic...

Suggest leaving TUTD mode as is. An automatic downshift to M1 can be commanded in TUTD with HPT. But the first time you forget you are in 'M' mode at a stop the engine will overrev before you can get...
Showing results 1 to 30 of 493

 
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