Who has a 4# lower
- Thread starter MD03SVT
- Start date
I will have one by Tuesday, and be installing it asap. I am going to the 19th International Mustang Meet in Saskatoon, Saskatchewan on the Aug. 29-31 weekend. There are drags on Friday night, I'll post results. I will be running stock tires unfortunately, I have other things going on that have kept me from buying some DR's.
I will also be installing the monoblade TB, and a 91 oct. tune from Evolution. I have never run at a track yet, so it should be interesting. I currently have a LFP stage 2 C&L kit/93 oct. tune, and it runs pretty good. I have done some very rough hand-held stopwatch 1/4 mile runs, and have been in the low 12's at 122ish mph(198 kmh) with lots of wheelspin on pavement.
This winter I'll be porting the blower and doing full exhaust, hoping to get to 650 rwhp.
I will also be installing the monoblade TB, and a 91 oct. tune from Evolution. I have never run at a track yet, so it should be interesting. I currently have a LFP stage 2 C&L kit/93 oct. tune, and it runs pretty good. I have done some very rough hand-held stopwatch 1/4 mile runs, and have been in the low 12's at 122ish mph(198 kmh) with lots of wheelspin on pavement.
This winter I'll be porting the blower and doing full exhaust, hoping to get to 650 rwhp.
I have 2.6 upper, steggy ported blower, 4# lower, steeda intake, JMS dynotune, Afco heat exchanger, ord racing mufflers. I made 576/567 in 94 degree heat. - shooting for 600rwhp in cooler weather.
Have not been down the track, but there are a few new z06's that can testify on the street that it's not the slowest car around.
I have talked to a few people who have the lower and the throttlebody..
Its good for 2 to 3 tenths at the track, with a good cool down..
Keep in mind however, that the blower heats up extremely quick on the street with the lower on. I have been told the combo can actually hurt you on the street, as the blower gets heat soaked right away, even with the Afco HE.
F**K that!! Sometimes More is NOT better. I had been thinking about the 4lb lower & TB but decided against it going with my Gut Feeling. JMHO.:beer:
I have the Metco 2.6 upper, 4lb lower,Jlt intake,Whipple TB, NGK plugs, and Metco idler set up and a Steeda coil over kit and the car came to life. I did noticed the heat soak after one or two runs down the road so I added the Afco HE and that fixed the problem as far as noticable power loss. I have a full Bassani exhaust with long tubes being installed on Friday but the car still pulled 567/577 to the wheels after being tuned on the dyno all day with the factory exhaust in place. The temp gauge never changed from stock to modified even without the Afco, I say go for it!
4lb lower
yes I have the lower pulley and the HE & allum. intercooler tank and all this helps but the car heats up very quick and pulls timing as a result the car slows down.If you run at the tracks and cool the car down between runs then by all means it makes power good for approx. 2-3 tenths but if you want to run the streets more then IMO don't go with it.One guy said he didn't see a change in the gauge and thats true but you don't see any change when you install a cooler thermostat either so I wouln't trust the gauge to much.If you make back to back runs you'll see just how much it looses ET.I hope this helps with your ?
yes I have the lower pulley and the HE & allum. intercooler tank and all this helps but the car heats up very quick and pulls timing as a result the car slows down.If you run at the tracks and cool the car down between runs then by all means it makes power good for approx. 2-3 tenths but if you want to run the streets more then IMO don't go with it.One guy said he didn't see a change in the gauge and thats true but you don't see any change when you install a cooler thermostat either so I wouln't trust the gauge to much.If you make back to back runs you'll see just how much it looses ET.I hope this helps with your ?
That is exactly the info I was looking for Dragpac,the 1/4 mile gain would be worth it but daily driving would suffer as it did on the 03/04 Cobra's without porting the blower which I will not do.
Thanks
Ted
Doing the 4lb lower is the same effect as doing the 2.6 upper.......approx + 3-4 psi so what's the difference when you're talking heat issues?? Me, I'm doing the lower over the decision of doing the upper 2.6 to avoid another tensioner and adding more load on the crank, but the main reason is to get rid of the heavy a$$ 07 lower. I'm going TVS anyways so doubt I'll have serious heat issues at 14 psi.
2.6U & 4#L spins the blower much faster than just an upper or just a lower that is where the heat is created and without porting the blower (which makes it more efficient) heatsoaking happens very quickly which in turn kills performance.Just replace your lower with the up-dated ford one from the 08's ( saves 13#)
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True, but I'm just doing the lower, leaving the upper stock on my upcoming TVS.........not doing both
Evo doing mine soon..........coming to Toronto Motorsport Park again this year??
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