Hulk

ya I think its less than 300hp unfortunately...if only we had a switch to go half power and then full like the old ZR-1 lol

blackbenzz

Guys, Weistec has tuned Several 63s to high HP which is a newer more complicated ecu. I have no doubt they will be able to push high boost. Stay tuned

Capn

So the Kompressor is producing more than half of the 469hp factory rated motor?

Tech-Tune

That I don't know.

TheOtherDodge

"So the Kompressor is producing more than half of the 469hp factory rated motor? "

That would put the motor at 235 crank hp...probably not that low but I bet the motor only makes about 300 at the crank.

urbamworm

Weistec how much peak ignition timing is being ran in these tunes? Such as in the 574whp 91 octane tune car? And then for someone running the same setup but on 93 octane since I believe you aren't changing the boost and both would be running 17psi?


I know there are Cobra guys running 17 and 18* of timing on 93 octane and running 18psi of boost on 2.9 Whipples, and there are even guys running up to 21psi in those cars but most are in the 18psi range with the above ignition advance.

And where the heck are the 2 guys that have these things mounted on their cars that are posting members on here? They should be running by now.

TheOtherDodge

urbanworm, I bet timing is somewhere in the range those Cobras are running. I run 20 degrees at 11 lbs boost on the truck.

urbamworm

I am not sure since they said they run conservative calibration after questions were asked about the power output on the 91 octane dyno they shared that is why I was asking.

Those Cobras were making around 630whp at 18psi and 18* with a 2.9 Whipple while running headers and cars running 17psi on 93 octane and 16-17* were in the 575 range so it seemed to be pretty close to the Weistec numbers, hince the curiousity of what ignition timing.

e55amgrocket

i'd be willing to bet more around 15-16 degrees is where they have it set at.

TheOtherDodge

e55damgrocket, I don't know what the timing is on these cars but I can't see it that low with only around 13 lbs of boost, aluminum heads and 9:1 compression max. Too little of timing will cause an incomplete burn and really cause emissions to sky rocket. I believe this will also increase egt's

e55amgrocket

Well CR isn't as high as we thought but we are talking about 17psi on 91 octane and weistec said a very conservative/safe tune. I can see 15-16 degrees at 17psi being conservative. Stock timing is 14 or 15 degrees.

Gadget

Well, I will bet to make power they timing would have to be in the 18-19 BDC range at the high RPM to get the peak cylinder pressure in the correct point of the rotation of the crank to get some work done. To retarded the peak cylinder pressure will be chasing the piston and not pushing it.

On the 4.0L V6 engine I make kits for we shoot 18-20 BTDC at 6200 with 10:1 compress in the 12-14 PSI range.

G

e55amgrocket

Maybe knowing that the compression is lower but most of these tuned cars run 18-20 on 93. When i got my tune from OE the first time he said if i ran anything lower than 93 he would need to pull some timing. My tune with Q16 was around 23 degrees i think. Most "box" tunes use stock timing too from what i remember asking around when i got my first tune.

PACougar

On my street tune I see 18 degrees and I'm on 91, I never see any knock. On my Q16 tune I see 25 degrees and again that's without any knock.

Gadget

kustom2k1

Gadget, well...did you drive it

Gadget

Had a slight issue on the initial engine start. Slight fuel leak from the rail end caps I had to square away. Pretty simple.

Fired right up and idled very smooth. Drives very nicely. I can see that the traction control is really going to burn through the rear brakes.

AFRs are tracking just as I expected. Usually ends up around 11-11.5 WOT and full RPM.

Timing is up and then tapers off as the IAT comes up. The IAT does climb fast and also recovers fast. Ambient is about 40*F and the IAT was pushing 180 a couple of times. That might get better as the air burps out of the system. There is no procedure for bleeding the air out of it. Going to do the cooling split very soon.

Just have a few miles on it. I will say the overall performance is better than the 180 crank pulley on the stock system and way smoother. It does not have that shock from the clutch engaging. It just goes.

Need to put some more miles on it.

It is very nice to be able to drive the car after it sitting for the last 6 months.

G

PACougar

I'm glad to hear your car is up and running. Those IAT's make me think that intercooler is just to small to make really big power with. Do you know how big the core is in the intercooler?

Gadget

No idea on the core. It is deep inside the preassembled unit.

I will fiddle with stuff when I do the split. Might just have air trapped in it.

G

kustom2k1

Gadget, like you said, all you need to do is split the cooling system. Running 200 degree water through it isnt helping. You have the same combo as the 575hp car in Wiestec vids, but setup to run 93?

BlownV8

You are correct, it's not anywhere near 300 RHWP without the supercharger. Closer to 224 to 235 RHWP depending on if it dynos at 400 RWHP or higher. 400 RWHP on a stock engine with 11.6 PSI of boost would yield a little less than 224 RWHP with the supercharger removed.

An engines power is doubled with every added atmosphere of pressure with an effective intercooler. 14.7 PSI is one atmosphere or bar. 11.6 PSI from a stock E55 is 78.9% of 1 bar. If the car dynos at 400 RWHP with 11.6PSI, it would produce approx 223.6 RWHP without the blower.

Of course, these are approximations but it should be close. An intercooler that brings the air below ambiant can produce more than double the power at one bar but I think you can see the sense in the calculations.

badm

Hay, Gadget that weistec supercharger looks awesome on your engine .. nothing like a monster supercharger . Good Job I'm waiting to see what kind of power and track et's people get with this set-up depending on their existing modds . I'm Glad your not having any real issues with this system , that's the real world test .... Weistec seems to be a really Good Company to deal with like the other top tuners ... Savings my coins NOW ... Badm

Gadget

Got to take the car back out today.

Looks like the intercooler system is settling down a bit. IAT much more stable now.

Made one run to 150 and it pulls very hard and wants to keep right on going.

I was worried about the noise from the supercharger with that open element filter, but it is not to bad at all. You can hear the whine, but it is quiet enough to make me happy.

G

cij911

I'd bet the higher than expected IATs are from the placement of the intake / filter...Seems silly to me that they did not route it better...

SterlingE55

This is where my mind goes...