Thericker

Isn't OEM BLOWER ON E55k a 2.3 liter? Why do you all keep referencing Weistec as 3.0 liter blower when it's actually a 2.9 liter blower? & estimating gains from other builds with much larger 3.4 liter blowers as litmus test to how much new HP this 2.9 weistec will really make? It's only a .6 gain over stock

Lastly why is weistec mis-adverting this new blower to be 3.0

If I'm incorrect please forgive my ignorance, I'm confused to this blowers actual size & fact others are comparing huge gains seen when using OTHER AFTERMARKET much larger 3.4 liter blowers or to the C63 built 6.2 liter engine w/2.9 Weistec that nets 800+ rwp

Just curious no attacks intended, I'd love to see @ least 700 rwhp on full bolt-on 5.4 E55 but it appears that's not happening on STOCK BLOCK, & more realistic 600 rwhp will be norm on reg full bolt-on E55k

GT-ER

I don't even know know how people come up with the oem blower being 2.3l. Weistec says it's 2.1l and based on the numbers it puts down I believe 2.1l to be correct. As for theirs not being 3.0l, where do you get this?

blackbenzz

I understand its different platforms but if you look at cobras and such with smaller displacement and 2.9L Whipple they are very capable of producing big numbers. The 63s that make 800whp have built motors and probably lower compression. I guess time will tell what these cars can make but yea its just speculation until its done.

Gadget

I will bet you a box of donuts that a 2.9L Whipple is really a 3.0L.

Oh, my Wiestec supercharger should be shipping today!!

My car has been down with a seized supercharger since June. Can't wait to get it back on the road.

G

kustom2k1

Go go Gadget Weistec supercharger! What are your mods to date?

Gadget

I do need to do a build thread for my E55.

The quick thumbnail, I did the EC stage 3, MBH headers and mid pipe, EC 82mm throttle valve and so on.

I have pretty much have had trouble with EVERYTHING. Headers weren't made right, had to fix that. The mid pipe does not fit the resonator at all. Modified it three times now, still have one side that does not seal and flops around. I need to get back in there and solve that problem.

The calibration was problematic. Way to pig rich with the larger injectors. Jerry took several stabs at getting it right and finally seemed to nail it with a nice 11:1 AFR. Ran great, but,,, Would get odd sudden lean outs in boost. Would be fine and powerful then suddenly go very lean in boost. If I did not have a wideband on it, never would of known and likely would of popped the engine. Kept getting those odd rear O2 codes. I think they are somehow related as the codes would come up right when the sudden unexpected lean out problem would start occurring. Was really looking for help and then "J" stopped returning my calls. Seemed I was on my own.

Reached out to other tuners for help. Wiestec helped me out with a calibration that seemed to solve the issues and ran much stronger.

Took the car to VIR for a road race event. I was crushing Corvettes, GT-Rs, Mustangs, and ran an S2000 right off the track. The E55 was amazing. Then the supercharger seized up. Guess it did not like that 180mm crank pulley. Took the belt off and milked it home and it has been sitting ever since.

I am really looking forward to driving the car again.

G

kustom2k1

As Yoda would say, finicky these cars are. Looking forward to your build thread G.

Great vid of a Weistec SL63 puttin the hurtn on a C63.

Thericker

This post & latest product Data from Whipple which is what Weistec is using for these new blower swaps. Direct product info..
http://www.whipplesuperchargers.com/...sp?ProdID=1162

---------------------Model Displacement-------------------
1.6 Liter 2.3 Liter 2.9 Liter 3.3 Liter 4.0 Liter 5.0 Liter 8.3 Liter

AMGPilot

And? so? it's still doing better than the stock supercharger.

hpV12

I'll take the 8.3 Liter LoooL

Thericker

I was merely replying to GT-ER's Question above^^^

GT-ER

Hmmm...and it seems you're right. Interesting. I guess they are following MB's foot step ( 6.2L advertised as 6.3...lol )

urbamworm

We have a 5.4 advertised as a 55

e55amgrocket

The aren't complete whipple superchargers that they use either. The case looks to be made by weistec and I've also remember years ago in the mustang world that a lot of people said the 2.9l whipple actually displaces right at 3.0L

Gadget

The displacement numbers are a game to avoid law suits.

Here is the deal. Whipple used to get their rotor assemblies from Lysholm. Later they wanted to start making their own to reduce costs. Lysholm either sued them or threatened to for patent violations and breach of contract. This ended up in an agreement where Whipple could produce their own under license but they were restricted as to what size units they could make. So the advertised displacement game started.

Later Lysholm was bought by I think Paxton with plans to move production to the US. I spoke to a Paxton rep and he told me that they planned to go after Whipple and try to make them buy Lysholm units or shut them down. I guess it did not work. I spoke to the Whipple guys and they are pretty confident that the patents have expired and they are no longer bound by any contracts and they can move forward. If you have noticed several other manufacturers have popped up all over making a copy of the Lyshlom or a slightly modified version.

I recently designed a supercharger kit using a 2.3L Whipple unit and asked one of my designers that has a close relationsionship with Whipple about Weistec and what rotor assemblies they were using. For the 6.3 liter engine kits they were using "left over Lysholm units". Not sure if that is still the case or what rotor assemblies they are using now.

So, when you start comparing a 2.9 Whipple to a 3.0 Lysholm I will bet if you really dig into them you may find they are close to identical.

G

dvdt

Next time you go decide to go crush cars while road racing please bring a GoPro! I'd love to see an e55 beating cars on a roadcourse!

e55amgrocket

Pretty much the same thing i heard awhile back for the most part. I actually remember someone taking one apart and proving it was the same as a lysholm internally. Can't wait to see what your car does with the weistec on it

PACougar

Either way Weistec advertises this as a 3.0L SC and last I checked none of us built it so what's point of claiming it's this or that size, they built it and they say it's 3.0L. That doesn't mean they aren't fudging the numbers, it means until someone proves it there's not much to discuss about the size.

AMGPilot

guys, if the supercharger were 2.95L it could be listed at 2.9 or 3.0 via rounding......

GT-ER

I agree...we are nitpicking

Gadget

Just yanked my ECU and overnighted to have the new calibration file installed.

Can't wait!!

been parked for 6 months.

G

urbamworm

Did they offer any different tune options such as a more aggresive one due to you running 93 octane instead of the weak sauce 91 they tune on? As well as them saying they did conservative tuning on the 91 which would be even worse (in a performance aspect) when you have 93 available.

Also assume you are taking the 180 pulley off and putting a stock one one? Or can you use that one instead of changing the supercharger pulley to something else for the higher boost they ran with throttle body and headers/exhaust?

Gadget

We spoke on the phone after I placed the order.

They are going to load up something that should be just right for my combination and octane. Says I will likely be over 600 RWHP.

To be honest, that might be to much for me, we will see. Might need to dial that back a bit. Don't want to put the car into the bushes.

Planning on getting a new set of rear brakes and tires already. I burned off the rear brakes at the VIR event. The traction control was going nuts all the time and I kept getting the ABS over temp warnings.

Recommendations on tires, like fat one that will fit on the stock wheels?

G

urbamworm

Nitto NT05 or Nitto 555r in 285/35-18?

And what are you doing about your crank pulley, gonna run it with Weistec's larger lowest boost supercharger pulley?

Please tell me you plan on dynoing the car right away too! Gotta see what it does on 93 octane with the different tuning. And what boost will you be running?

blackbenzz

Congrats on the Weistec! Can't wait to see what it does. Plan on bringing it to MIR?.as for a road course tire, i really liked the toyo r888 but they are pricey