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Joined: Dec 2001
Posts: 24
Junior Member
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OP
Junior Member
Joined: Dec 2001
Posts: 24 |
hi guys, i thought id post this here, to see if anyone out there could help... i have a mondeo st24, with a powerflow s/s twin exit exhaust (cat back) blitz filter, svt throttle body & unichip. however today when i got it rolling roaded today, i was VERY disapointed with the results...
flywheel=175.7bhp
wheels = 138.2bhp
torque = 170.7lb ft.
as standard from ford the engine is supposed to be
flywheel=170bhp
the mods i have done including fitting the unichip i was expecting to get around 190+ flywheel and around 160@wheels... the tuner says my powerloss is because of my exhaust only being 2" in diameter, and says i should have at least 2.5" pipe on it, and i shouldnt have it dual exit. does anyone agree with this? tuner says my engine is okay, and my intake is okay, (cleaned secondaries at the weekend, and fitted svt tb, and fitted extra induction pipe)
is there anything else that could be giving me the power loss ? could this be due to the exhaust? i only worry because cars with less mods than mine get a lot more bhp! ie, st24 with blitz & just a svt Tb gets 158@wheels!!! mine is only getting 138!
someone help!
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Joined: May 2002
Posts: 816
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Joined: May 2002
Posts: 816 |
Is your chip programmed right?, and duals aren't bad.
"Wow, that sank fast." "Yeah, like a rock." 96 Contour GL ATX 9mm Ford Racing Wires; 2 Resonators down, 1 to go;"Special airbox"; many mods planned Sony CD player: 50wattsx4;remote; Speakers=50 watt Pioneer 6x8s Ross Evans 
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Joined: Dec 2001
Posts: 24
Junior Member
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OP
Junior Member
Joined: Dec 2001
Posts: 24 |
yes the chip was setup by a professional dealer then he rolling roaded it.
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Joined: Dec 2001
Posts: 24
Junior Member
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OP
Junior Member
Joined: Dec 2001
Posts: 24 |
thanks for the overwhelming response.
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Joined: Jun 2000
Posts: 1,444
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Joined: Jun 2000
Posts: 1,444 |
The Blitz intake could be hurting you. Try different intake.
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Joined: Apr 2002
Posts: 136
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Joined: Apr 2002
Posts: 136 |
How long since your intakes were cleaned? If
never, and car has some miles on it,this might
be a possible problem.
1999 Black SVT #2639/2760 on 08/11/1999; w/18" OZ Racing Superleggera's, Yoko Paradas.
MSDS Headers,Quaife LSD, Borla,KKM,chipped,DMD,Baer 13" Track rotors.
Lowered/HR and Koni's; HPP RSB
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Joined: Dec 2001
Posts: 24
Junior Member
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OP
Junior Member
Joined: Dec 2001
Posts: 24 |
ahh... some feedback!  cleaned the intakes/secondaries on saturday, intake isnt the issue, tuner said my engine was sweet (73k) he just said about the exhaust.. is it possible for me to lose this much because of the exhaust? i currently have a 2" dual exit. he said it should be 2.5".
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Joined: May 2001
Posts: 972
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Posts: 972 |
can you post your dyno sheet? that seems like a hella lot of tourque compared to FWHP, 2" exhaust shouldent be hurting you to the tune of 10-15 fwhp
Q - is your exhaust true duals from the manifolds back or just quasi dual?>
95 SE Champagne Mettalic
True Dual exhaust with X pipe and Redline mufflers
KKM Tru Rev intake
H&R Springs/KYB struts
Apex-i S-AFC
65mm Throttle Body
17" Ace Spades
4 Pt Racing Harness
Window Tint all around
New Engine @ 117k kilometers
G-Tech: 15.6 @ 91.5 MPH
"you officially kick ass"
quote from awed CEG'er after i chopped my hood and threw on scoops
RIP 98 SVT silverfrost *nov 4 2001*
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Joined: Dec 2001
Posts: 24
Junior Member
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OP
Junior Member
Joined: Dec 2001
Posts: 24 |
exhaust is dual from the cat back. not from the manifold. requested pics:  (flywheel BHP)  torque lbs ft. thanks for the feedback.. :rolleyes:
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Joined: Jun 2000
Posts: 114
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Joined: Jun 2000
Posts: 114 |
Hi Adz- the standard ST24 exhaust is 2.25" diameter, so your's smaller than standard,that certainly wouldn't help your power output.... Don't go too large though, I noticed someone on fordmondeo.org suggested 3" diameter  . Have a look at what size other people on here are using- 2.5" would be plenty big enough, any larger and you run the risk of slowing exhaust velocity and making things worse. Personally I'm sticking with 2.25" and getting low restriction mufflers to replace the factory ones.
David Mondeo ST24 Information Site yr 2000 silver Mondeo ST24 V6 MTX mods: Custom alloy air intake using K&N RC-3250 air filter; Koni Sports shocks; rear 20mm Selbys sway bar; THF; EBC Greenstuff front pads, custom exhaust.
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