RJM Whipple Customer Thread

[gbrettin]

Take the exhaust off and let it eat.

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[FPenvy]

Originally Posted by gbrettin

Take the exhaust off and let it eat.

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[bullitt5897]

Originally Posted by gbrettin

Take the exhaust off and let it eat.

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I said the same thing... was told it’s the final tune going on the car and they weren’t going to waste time just for glory numbers.

[jwick]

Originally Posted by bullitt5897

I said the same thing... was told it’s the final tune going on the car and they weren’t going to waste time just for glory numbers.

But isn’t that the fun?

[bullitt5897]

Originally Posted by Elmo370z

How does visual inspection tell you that the Y pipe is to restrictive, because it’s glowing? Seems like there is a underlying issue somewhere that’s need to be sorted out.

A set 2.25” pipes merging to a single 2.5” pipe isn’t a restriction? So 2 pipes with a 4” cross section each for a total of 8” of cross sectional flow merged to a single 2.5” pipe with a 5” cross sectional flow... what do you call that missing 3” of cross sectional flow? How about the 2 90* bends leading up to it?

Simple math points out to it being an issue. Compare it to a true 3” dual exhaust:

2 tubes with a cross section of 7” each for a combined 14” cross section compared to single 5”cross section... hmmm I wonder which would be more free flowing?

[bullitt5897]

Originally Posted by jwick

But isn’t that the fun?

I totally agree sadly I am not running that show.

[jwick]

Originally Posted by bullitt5897

A set 2.25” pipes merging to a single 2.5” pipe isn’t a restriction? So 2 pipes with a 4” cross section each for a total of 8” of cross sectional flow merged to a single 2.5” pipe with a 5” cross sectional flow... what do you call that missing 3” of cross sectional flow? How about the 2 90* bends leading up to it?



Simple math points out to it being an issue. Compare it to a true 3” dual exhaust:



2 tubes with a cross section of 7” each for a combined 14” cross section compared to single 5”cross section... hmmm I wonder which would be more free flowing?

I had the same argument with my fabricator when I went from my Stillen exhaust to my FI exhaust. He had to custom fabricate the connection between FI’s mid-pipe and the turbo 3” DP (single turbo). He kept wanting to neck the 3” down to a single 2.5” pipe and then branch back out to mate to the mid-pipe. Took me awhile to explain to him that he was fabricating a restriction into the system. Finally got him to custom fabricate a 3”to2.5” Y, one 3” inlet and two 2.5” outlets.

[FPenvy]

Originally Posted by jwick

I had the same argument with my fabricator when I went from my Stillen exhaust to my FI exhaust. He had to custom fabricate the connection between FI’s mid-pipe and the turbo 3” DP (single turbo). He kept wanting to neck the 3” down to a single 2.5” pipe and then branch back out to mate to the mid-pipe. Took me awhile to explain to him that he was fabricating a restriction into the system. Finally got him to custom fabricate a 3”to2.5” Y, one 3” inlet and two 2.5” outlets.

first off thats because your turbo kit is trash.......

[Elmo370z]

Originally Posted by bullitt5897

A set 2.25” pipes merging to a single 2.5” pipe isn’t a restriction? So 2 pipes with a 4” cross section each for a total of 8” of cross sectional flow merged to a single 2.5” pipe with a 5” cross sectional flow... what do you call that missing 3” of cross sectional flow? How about the 2 90* bends leading up to it?

Simple math points out to it being an issue. Compare it to a true 3” dual exhaust:

2 tubes with a cross section of 7” each for a combined 14” cross section compared to single 5”cross section... hmmm I wonder which would be more free flowing?

Why wasn’t this address before the tune? Common sense would of told them it was going to be a restriction. Thanks for clearing that up.

[Spooler]

Originally Posted by Elmo370z

Why wasn’t this address before the tune? Common sense would of told them it was going to be a restriction. Thanks for clearing that up.

He isn't in charge of it. For some folks it is beauty over function until the beauty don't function. LOL

[Elmo370z]

Originally Posted by Spooler

He isn't in charge of it. For some folks it is beauty over function until the beauty don't function. LOL

Mall crawlers

[solidus]

All y'all's feelings are gonna be hurt when they show up at Zdays with a 1000whp dyno sheet.....in crayon.

[Spooler]

Originally Posted by solidus

All y'all's feelings are gonna be hurt when they show up at Zdays with a 1000whp dyno sheet.....in crayon.

Noop, don't wish bad JuJu on anyone. Best of luck to him. I am doing my own thang. If he makes 1000hp, good for him.

[jwick]

Originally Posted by Spooler

He isn't in charge of it. For some folks it is beauty over function until the beauty don't function. LOL

I thought that only applies to women and shoes?

[jwick]

Originally Posted by Spooler

Noop, don't wish bad JuJu on anyone. Best of luck to him. I am doing my own thang. If he makes 1000hp, good for him.

Absolutely. Anyone making 1000whp would be awesome for the platform. I don’t care whose kit makes it.