my class doesn't allow for a transbrake. these trans don't have them anyway.
i have the converter waiting to go in next week.
at the power level i'm at. jon recommended the 2c.
Project Blue Blaze!
- Thread starter beefcake
- Start date
my class doesn't allow for a transbrake. these trans don't have them anyway.
i have the converter waiting to go in next week.
at the power level i'm at. jon recommended the 2c.
drive it every day that it's nice to work or wherever
At 16 psi the cylinders are getting filled.
Sky Render
Stig's Retarded Cousin
Supercharged engines behave like N/A ones only if a roots blower (positive displacement) is used. Roots blowers provide linear power increases. Driving a roots-blower-equipped engine feels just like the N/A engine, but "bigger."
Centrifugal superchargers add more boost as RPMs increase, achieving peak boost only near redline. A centri-equipped engine will have similar response characteristics to an N/A at low RPMs but will really "wake up" as the revs climb.
Turbo motors are a different story, since the compressor is driven by exhaust energy and can take a while to "spool up," depending on the size of the turbo. Before the turbo spools up, the increase in backpressure can actually decrease power. Most turbos seem to spool up around 2-3,000 RPMs (depending on setup). The engine seems laggy below that RPM and then kicks you in the butt when the turbo kicks in. This is called "turbo lag."
Because these V8s in our cars have plenty of low-end power already, centrifugal superchargers are popular among people who want more power but maintain good street manners. If you don't push the engine to higher RPMs, you don't have much boost.
figured i'd throw in some updates.
finished up the fuel system on the car
We got rid of the lil 2 into 1 fitting we had and added Fore's nice billet 3 in to 1.
The piece actually fit in real good under the stock pastic piece under there. It tucks back a little more, but i left it forward for pic purposes.
We also got the inline filter added as well. Each pump has a nice filter under it, but this adds a little protection.
On the old setup we were running the #8 to the regulator and then returning off the regulator. Still dead heading at the rails.
With the metco rails, we were able to go to a true return system.
For the fuel line, we are using Earls Pro Lite. Brian @ Finish Line really likes it alot more than steel braided. It's lighter, more flexible, but plenty durable. Still looks real good too!
[/QUOTE]
Got the Circle D converter installed. It actually did better than I predicted. The converter combined with a 2.85 vs 3.12 pulley dropped 60's from 2.0's to a best of 1.46.
Best e.t. so far has been a 10.14@139 mph. That was compared to the 11.0's we'd been seeing on the new lower compression engine.
The T trim blower has a 3.75" inlet. The car has actually been running the 3.5" tube that Vortech sent with the pre production kit. I never even thought about the fact that the inlet pipe was corking us.
TT Mike R @ Vortech and he seemed to think a 4" inlet would be good for maybe 1 psi but maybe as much as 40-50 rwhp.
I have actually been overspinning the blower by about 5000 or so rpms with the 2.85 pulley. We tried a 2.75 anyway, got some slip, and still ran a 10.15.
Thinkin about a larger inlet got me thinking about a blower more matched to the rpm's I am seeing on it. I sent the head unit back to vortech. I already had the heavy duty gear case, so it was pretty easy for them to upgrade the blower to a "JT" trim.
The differences are
Blower--RPM-------CMF-------HP Rating
T------55000-----1200--------825
JT-----60000-----1450--------1000
We swapped back to the 2.85 pulley as well as it will put the blower right at the top of it's range.
The air charge should be cooler too.
We also got the new inlet fabbed up. 4" all the way through. We also cut down a lot of extra tubing from the blow off as well.
Some comparison pics on the 2 tubes.
The pics do not do the justice to the size of difference in the filter either. It's overall about 50% bigger.
finished up the fuel system on the car
We got rid of the lil 2 into 1 fitting we had and added Fore's nice billet 3 in to 1.
The piece actually fit in real good under the stock pastic piece under there. It tucks back a little more, but i left it forward for pic purposes.
We also got the inline filter added as well. Each pump has a nice filter under it, but this adds a little protection.
On the old setup we were running the #8 to the regulator and then returning off the regulator. Still dead heading at the rails.
With the metco rails, we were able to go to a true return system.
For the fuel line, we are using Earls Pro Lite. Brian @ Finish Line really likes it alot more than steel braided. It's lighter, more flexible, but plenty durable. Still looks real good too!
Got the Circle D converter installed. It actually did better than I predicted. The converter combined with a 2.85 vs 3.12 pulley dropped 60's from 2.0's to a best of 1.46.
Best e.t. so far has been a 10.14@139 mph. That was compared to the 11.0's we'd been seeing on the new lower compression engine.
The T trim blower has a 3.75" inlet. The car has actually been running the 3.5" tube that Vortech sent with the pre production kit. I never even thought about the fact that the inlet pipe was corking us.
TT Mike R @ Vortech and he seemed to think a 4" inlet would be good for maybe 1 psi but maybe as much as 40-50 rwhp.
I have actually been overspinning the blower by about 5000 or so rpms with the 2.85 pulley. We tried a 2.75 anyway, got some slip, and still ran a 10.15.
Thinkin about a larger inlet got me thinking about a blower more matched to the rpm's I am seeing on it. I sent the head unit back to vortech. I already had the heavy duty gear case, so it was pretty easy for them to upgrade the blower to a "JT" trim.
The differences are
Blower--RPM-------CMF-------HP Rating
T------55000-----1200--------825
JT-----60000-----1450--------1000
We swapped back to the 2.85 pulley as well as it will put the blower right at the top of it's range.
The air charge should be cooler too.
We also got the new inlet fabbed up. 4" all the way through. We also cut down a lot of extra tubing from the blow off as well.
Some comparison pics on the 2 tubes.
The pics do not do the justice to the size of difference in the filter either. It's overall about 50% bigger.
05yellowgt
Senior Member
Looking good Terry. Any thoughts about trying the BOSS intake again now that you are running more boost and a better blower?
Sent from my ADR6400L using Tapatalk
Sent from my ADR6400L using Tapatalk
No, not really. The combo is working so well, and with Jon's new tune, the drivability is very good.
I can't see the car not going 9's other than the track suckin
I'm going to drop 4 degrees of timing to start tomorrow and see what kind of mph she pulls and go from there.
We were pulling 139 mph before. I have no clue what this combo is going to do. I know the blower is rated to make 175hp more than the T Trim.
We are going to be spinning it to just over it's full rpm potential. So I really have no clue.
I'm going to pull 4 degrees of timing right out of the gate. See what kind of mph and load the car sees and go from there.
I have a shootout today, so no time to get it on the dyno before hand.
RedMustang
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vids of shootout please
i'm sure they got some. it was funny. it was called a "street car" shootout.
I drive the car to work in the rain, then to the meeting spot, there are cars with trailers that unloaded there on full slicks, made the big "14" mile drive
raced, then trailered up and went home.
I had the 2nd fastest car, and ended up in the finals of the top 16 shootout taking 2nd place there as well.
of course the drama is already starting on the local forum. A guy posted that "middletown" brought home both plauques.
I said, "Yep, pretty sure they loaded them in the trailer with the car"
I drove 98 miles round trip, raced on drag radials and drove home.
Getting belt slip though, so I wasn't getting near the boost I should, 90 degrees too, it was 81 on my way home at 10:30
rsb5772
Member
What do you plan on doing about the belt slip? There isn't a way of going to a wider belt/pulley on the vortech and paxtons, correct?
2010_gt500
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What did the car run?
We're going to look at the idlers this week.
We didn't have any slip with the 2.85 pulley before. I got a new bracket system from vortech, and we haven't found the nitch idler spot and belt yet. The new system is about 4 1/2" shorter.
You have 5 holes to adjust one of the idler, we're going to play with the hole and belt sizes, and look at the upper idler and see if we can't get one a little bigger for a little more wrap.
10.3's in 2600 ft of air.
Track was shitty as hell to, my 60' was off almost 2 tenths.
At our other track with the belt slip fixed, i think it'll run 9.9's to 9.8's even in the 90 degree weather.
Come fall 9.5's or so
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Full_Tilt
Senior Member
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Man that was stout, haha
that was a camaro
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