Ferrari Mailing List: Re: 458 with aftermarket exhaust

[Thomas Reynolds (kjtar]

Well, here's where my math "skills" are called into play.  562-450=112 hp loss.  That's 19.9% loss from a claimed 562.  I've always heard that a driveline loss to RWP of anywhere from 15 to maybe 25% is always possible.  25% of 562 would be a loss of 140.5 hp.

Tom Reynolds

Tulsa, OK

--- On Mon, 11/22/10, Mike Fleischer <themightytoe [at] gmail.com> wrote:

From: Mike Fleischer <themightytoe [at] gmail.com>
Subject: Re: [Ferrari] 458 with aftermarket exhaust
To: "Tom Reynolds" <kjtar [at] att.net>
Cc: "The FerrariList" <ferrari [at] ferrarilist.com>
Date: Monday, November 22, 2010, 1:55 AM

Ah yeah I call bullshit on that.

450 hp out a motor that claims 562 at the crank?  Thats a 25% driveline loss...  I don't think so.  At most its probably 18%, but more likely around 15%...  So it should see 480-490 at the wheels, and likely is under-rated from the factory a bit anyhow (at least most American muscle engines are).

On 11/21/2010 6:36 PM, LS wrote:

Indeed, I was fully expecting to see no mention of dyno gains or something on the order of 10-15rwhp gains.

A guy I know and some mods done to a 355 and the cost was about $12k for full header, cats, mufflers, etc.

The dyno shop was "out of order" that day conveniently.

LS

---

From: Peter Pless <ferrarilist [at] pless.com.au>
To: LS <lashdeep [at] yahoo.com>
Cc: The FerrariList <ferrari [at] ferrarilist.com>
Sent: Sun, November 21, 2010 7:29:35 PM
Subject: Re: [Ferrari] 458 with aftermarket exhaust

Anyone else surprised at the power gains? Ferrari doesnât normally leave that much on the table.

 

From: LS [mailto:lashdeep [at] yahoo.com]
Sent: Monday, 22 November 2010 11:28 AM
To: Peter Pless
Cc: The FerrariList
Subject: Re: [Ferrari] 458 with aftermarket exhaust

 

Great sound and apparently awesome power gains...I wonder how much?

$15k?

LS

 

 

---

From: Fellippe Galletta <fellippe.galletta [at] gmail.com>
To: LS <lashdeep [at] yahoo.com>
Cc: The FerrariList <ferrari [at] ferrarilist.com>
Sent: Sun, November 21, 2010 12:37:44 PM
Subject: [Ferrari] 458 with aftermarket exhaust

http://www.youtube.com/watch?v=mtp2TGhKY0s

 

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