are 4:10's with a Vortech too much?
05-12-2007, 02:34 PM
#3
5th Gear Member
Join Date: Nov 2005
Location:
Posts: 3,235
RE: are 4:10's with a Vortech too much?
ORIGINAL: lieu910
Here is my current set up
Vortech HO - 470 WHP
18" Bullitts with 275/45/18 on the rear
3:55
5-speed
Would 4:10's help me lower my ET?
Here is my current set up
Vortech HO - 470 WHP
18" Bullitts with 275/45/18 on the rear
3:55
5-speed
Would 4:10's help me lower my ET?
The ratio changes to 4.162 so not drastic but you'll be crossing the traps at about 6300 which is ok if you're tuned, not ok if you're not.
05-12-2007, 03:01 PM
#4
2nd Gear Member
Join Date: Jan 2006
Location: Illinois
Posts: 415
RE: are 4:10's with a Vortech too much?
I'm curious how much pressure your running your Vortech to get 470 rwhp ? I was at the dealer and they installing a polished Vortech in a 05 GT Mustang and weren't getting near that.
05-12-2007, 03:17 PM
#5
3rd Gear Member
Thread Starter
Join Date: Jul 2005
Posts: 556
RE: are 4:10's with a Vortech too much?
ORIGINAL: Mpaint99
I'm curious how much pressure your running your Vortech to get 470 rwhp ? I was at the dealer and they installing a polished Vortech in a 05 GT Mustang and weren't getting near that.
I'm curious how much pressure your running your Vortech to get 470 rwhp ? I was at the dealer and they installing a polished Vortech in a 05 GT Mustang and weren't getting near that.
05-12-2007, 05:30 PM
#6
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Join Date: Aug 2006
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Posts: 1,527
RE: are 4:10's with a Vortech too much?
I have never heard of a single person getting more the 400 rwhp out of the H/O kit with the vortech tune.
It took me 14 psi to get 526 rwhp on race gas with 26º of timing and I made 470-480'ish on pump gas with 17º of timing. This was at 14 psi (3.31 pulley)
Frankly, I have a hard time buying your making 470 at 9 psi.
I ran 4.10 gears and never ever had a problem crossing the beams in 4th. Viking is dead on - around 6200-6500 rpm is where you'll be depending on how and where you shift.
But, I have to say, if you really want to increase your times, get rid of the darn street tires and run some ET Streets. You're only going to hurt your 60's adding 4.10's to street tires.
It took me 14 psi to get 526 rwhp on race gas with 26º of timing and I made 470-480'ish on pump gas with 17º of timing. This was at 14 psi (3.31 pulley)
Frankly, I have a hard time buying your making 470 at 9 psi.
I ran 4.10 gears and never ever had a problem crossing the beams in 4th. Viking is dead on - around 6200-6500 rpm is where you'll be depending on how and where you shift.
But, I have to say, if you really want to increase your times, get rid of the darn street tires and run some ET Streets. You're only going to hurt your 60's adding 4.10's to street tires.
05-12-2007, 06:02 PM
#7
3rd Gear Member
Thread Starter
Join Date: Jul 2005
Posts: 556
RE: are 4:10's with a Vortech too much?
ORIGINAL: fordfanboy
I have never heard of a single person getting more the 400 rwhp out of the H/O kit with the vortech tune.
It took me 14 psi to get 526 rwhp on race gas with 26º of timing and I made 470-480'ish on pump gas with 17º of timing. This was at 14 psi (3.31 pulley)
Frankly, I have a hard time buying your making 470 at 9 psi.
I ran 4.10 gears and never ever had a problem crossing the beams in 4th. Viking is dead on - around 6200-6500 rpm is where you'll be depending on how and where you shift.
But, I have to say, if you really want to increase your times, get rid of the darn street tires and run some ET Streets. You're only going to hurt your 60's adding 4.10's to street tires.
I have never heard of a single person getting more the 400 rwhp out of the H/O kit with the vortech tune.
It took me 14 psi to get 526 rwhp on race gas with 26º of timing and I made 470-480'ish on pump gas with 17º of timing. This was at 14 psi (3.31 pulley)
Frankly, I have a hard time buying your making 470 at 9 psi.
I ran 4.10 gears and never ever had a problem crossing the beams in 4th. Viking is dead on - around 6200-6500 rpm is where you'll be depending on how and where you shift.
But, I have to say, if you really want to increase your times, get rid of the darn street tires and run some ET Streets. You're only going to hurt your 60's adding 4.10's to street tires.
Please, I have better things to do than BS about dyno numbers.I'd be happy to post the dyno sheet tomorrow when I get off duty.
The shop that did my install is veryexperienced with Vortech and has not had any 3V cars with the HO kit under 400 hp canned tune or not.Sounds like you're poo-poo on the Vortechs, which is no skin off my nose. Go to modualrfords.com. Lots of aftercooled Vortech guys there all making about what I do, some making more.
05-12-2007, 06:12 PM
#9
3rd Gear Member
Thread Starter
Join Date: Jul 2005
Posts: 556
RE: are 4:10's with a Vortech too much?
ORIGINAL: Stkjock
+1 to getting rid of the street tires..... if you really want to improve your times... you need some DRs or slicks...
BTW the 470whp # is on a DnyoJet?
+1 to getting rid of the street tires..... if you really want to improve your times... you need some DRs or slicks...
BTW the 470whp # is on a DnyoJet?
05-12-2007, 06:16 PM
#10
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Thread Starter
Join Date: Jul 2005
Posts: 556
RE: are 4:10's with a Vortech too much?
ORIGINAL: lieu910
Yesit wason a Dyno Jet. There was more power there if we would have spun the RPMs higher, but I was losing fuel pressure after 5200 rpm. I now have GT500 pumps and could probably pull some morebetter numbers now by virtue of not having to shut it downearly.
ORIGINAL: Stkjock
+1 to getting rid of the street tires..... if you really want to improve your times... you need some DRs or slicks...
BTW the 470whp # is on a DnyoJet?
+1 to getting rid of the street tires..... if you really want to improve your times... you need some DRs or slicks...
BTW the 470whp # is on a DnyoJet?