This way the same lecture what Bruce mentioned in his lab, "...to much CFM
flow would harmed the velocity." My main concern is seeing the thinning of
the walls after someone modified the TB and the lack of protection with a SC
or NOS. Another problem is the idle design was poorly done. Bruce may have
a fix later in the testing stages.
---------------------------------------------------
Steve St.Laurent
2000 Dakota 4.7L, CC, Soon to be Supercharged
1999 Chebby gone in 2003
1993 Suzuki Tracker (Geo) 1.6L
COMING SOON
2003 Aspiring for a V-10 GTS-R
2003 Dodge Dakota 5.7 Hemi R/T
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of WMBARRET@aol.com
Sent: Tuesday, November 14, 2000 10:37 AM
To: dakota-truck@buffnet.net
Subject: RE: DML: Hughes Engine 4.7L TB Stage 1, test mule
Steven, You have to know at how many inches the CFM reading was taken.
Hughes
flow benched their 4.7L TB @ 10 inches. I think Bruce flowed his at 25
inches, that would get you in the 600+ cfm range, stock. Does'nt matter
much,
as long as you use the same test variables before and after to see your
Increase/decrease. Hughes's initial test showed 398cfm@ 10", and after
showed
450cfm, a 13% increase @ 10". They are shooting for 15/16% increase for
their
"Stage 1". After I test out the Stage 1, then it will be determined if the
4.7L can even handle more CFM than that. While more CFM is good, you are
sacrificing Velocity, which is not good. A happy medium is desired. When you
allow the CFM to go way high, usually you'll lose some Low end response, but
top end will be awesome. If you can increase CFM, but keep the Velocity
decent, thats when you'll really see a big all around performance increase.
I'll know how it works out on Saturday!
Matt Y2K-HEMI
'00 RC 4.7L 5 spd
14.23 @ 94.49
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
In a message dated Mon, 13 Nov 2000 10:27:51 PM Eastern Standard Time,
"Steven St.Laurent" <Saint1958@home.com> writes:
<< Matt, according to Bruce there is more CFM on the stock TB then what you
reported. I wondering if there machine is off.
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of WMBARRET@aol.com
Sent: Friday, November 10, 2000 6:23 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: Hughes Engine 4.7L TB Stage 1, test mule
I talked to Dave again this morning, he's working on the TB today, and says
he may have found 2 to 3% more flow, so it may be a 15% increase by the time
he does my TB!
He'll be flow benching the TB again today to see what the REAL results are.
Matt Y2K-HEMI
In a message dated Fri, 10 Nov 2000 8:54:04 AM Eastern Standard Time,
WMBARRET@aol.com writes:
<< I found out from Dave I'm going to be the test mule for the Hughes Engine
Stage I TB, 4.7L, in the next week or so. Dave says the stock unit flowed
398
cfm@ 10 inches and their Stage I unit flows 450 cfm@ 10 inches. This is a
flow increase of 12%. I have 2 options, I can send them my TB off the truck,
or I can buy a new TB ($220) ouch! If I send him my TB it will be very
inexspensive, since I sent him an intake manifold earlier for free. His
regular price for a customer supplied TB is $155.00
Matt Y2K-HEMI
'00 RC 4.7L 5 spd
14.23 @ 94.49
>>
>>
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