(Q/A thread) SRT-4 Performance Modifications and Upgrade Paths - Page 2 - Dodge SRT Forum
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post #16 of 183 (permalink) Old 04-24-2011, 01:35 PM
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^^^True...I figured you'd just close the thread...sadly enough it has to be done so newbs will actually use the search feature
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post #17 of 183 (permalink) Old 04-24-2011, 09:20 PM
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This has been needed for a very long time... Thanks North..

White 05, Original Owner, Stage1 pcm, DSP, AEM Wideband, AEM CAI, AGP solid engine mounts, NeedsWings V.5 DP, Walbro 255, Mopar blue plate.
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post #18 of 183 (permalink) Old 04-24-2011, 09:53 PM
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ty

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post #19 of 183 (permalink) Old 04-24-2011, 10:17 PM
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Finally. Good job!
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post #20 of 183 (permalink) Old 04-26-2011, 10:41 AM
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I was reading the maintenance section. I always added the mopar limited slip additive to the ATF+4 because the car manual said so. What does excessive chatter mean? You said, "add 4oz ONLY if you hear excessive chatter, otherwise don't do it). Sorry as you know I am not the greatest with these terms.
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post #21 of 183 (permalink) Old 04-26-2011, 11:15 AM Thread Starter
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Originally Posted by escaro View Post
I was reading the maintenance section. I always added the mopar limited slip additive to the ATF+4 because the car manual said so. What does excessive chatter mean? You said, "add 4oz ONLY if you hear excessive chatter, otherwise don't do it). Sorry as you know I am not the greatest with these terms.
If the transmission is noisy without it, add the 4 ounces of friction modifier. If you don't hear anything out of the ordinary you can skip it. '03s without the Quaife LSD rarely need it, '04-'05s are about 50/50.
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post #22 of 183 (permalink) Old 04-26-2011, 11:26 AM
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99% of dealers say not to use it.

It breaks down the fluid faster as well.
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post #23 of 183 (permalink) Old 04-26-2011, 11:36 AM Thread Starter
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post #24 of 183 (permalink) Old 04-26-2011, 11:59 AM Thread Starter
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The first set of performance mods have been added, these (combined with the previous section's mods) will get you into the 260-280whp range and be able to put the power to the ground.
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post #25 of 183 (permalink) Old 04-26-2011, 12:19 PM
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What about using a sprayer w/stock intercooler to help w/heat soak?
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post #26 of 183 (permalink) Old 04-26-2011, 12:33 PM Thread Starter
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Originally Posted by rw44 View Post
What about using a sprayer w/stock intercooler to help w/heat soak?
There's more than one way to skin a cat but I didn't list intercooler sprayers because they'll get you flagged at most drag strips if the officials see anything dripping off the car. I'll be listing them later in an optional mods section that will include things like the fuel pump rewire mod and 3" O2 housings.

Last edited by NorthNJSRT4; 04-26-2011 at 12:35 PM.
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post #27 of 183 (permalink) Old 04-26-2011, 12:41 PM
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Good job so far North!
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post #28 of 183 (permalink) Old 04-28-2011, 01:21 PM
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I DO NOT recommend BFMIC (big front mount intercoolers) on stock, Stage 3 or entry level big turbos. Most don't flow very well so you get drops in pressure accross them, take much longer to pressurize so throttle response gets slow and the motion of the car combined with their weight has a tendency to either tear them open or damage the mounting points on the car.

The only thing I disagree with, is this paragraph. You're generalizing all aftermarket oversize intercoolers. I sold a large front mount to a guy and he reported back stating that his car picked up over 25lb/tq from the upgrade.

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post #29 of 183 (permalink) Old 04-28-2011, 01:40 PM Thread Starter
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Originally Posted by AWDnot2 View Post
The only thing I disagree with, is this paragraph. You're generalizing all aftermarket oversize intercoolers. I sold a large front mount to a guy and he reported back stating that his car picked up over 25lb/tq from the upgrade.
I've qualified that paragraph by saying 'most'. The intended audience for the guide are new members that aren't going to be shopping for a $650 CTI, $525 ED or $550 AGP...they've buying $200 Godspeeds. In the _year_ that it took to develop the guide I tested a number of ICs that locals had in my own car and a friends S3 (many of them on the dyno) and found that the vast majority of BFMs required the compressor housing of the stock turbo to push 24-25psi just to make 20-21psi at the throttle body while even the cheapest of DFICs produced identical cooling as the big ones without having to push the compressor to the point where longevity was going to become an issue.

It also doesn't change the fact that throttle response suffers in proportion to how much larger the IC is over stock and the heavier they are the greater the chance of the welds giving way.

Thank you for your input.

Last edited by NorthNJSRT4; 04-28-2011 at 01:44 PM.
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post #30 of 183 (permalink) Old 04-28-2011, 02:00 PM
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Damn. Can I get your book on cassette?

IC sprayers were my favorite part of the Toy's package. Always figured the Drag Strips and Dynos wouldn't allow use though.

You say: Many people like Granatelli wires but I generally don't recommend solid core wires on these cars due to the interference they can generate. And I understand the concern, however the Granatelli's do come with a "Doughnut" on them to protect from Radio Frequency and Electro magnetic noise. (I am sure you already know this) What is your opintion on the actual protection of the "doughnut?" Is there a way we can test sometihing to see if they workk as advertised?

20G Stage 3 on E85: New data:384 hp 411 tq

"Maybe I should just stick to bolt-ons." -Hitler

I don't really want to wrench anymore. I'd rather detail.

Last edited by _Nick_; 04-28-2011 at 02:26 PM.
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