efiftyfizzle

832hp/829 lb-ft to the wheels (race gas) according to their Instagram page. What's impressive is the motor is on stock internals and stock fuel system.

What do you guys think?

cnterline

Isn't that the turbo that's been coming out any day now for months ?

M-Theory

Yup, but to look on the more positive this is still really impressive on stock internals and fuel system.

gaspam

i was hearing around +1000whp on the boost sites.... 832whp on race gas is probably around 760whp on 93.... pretty good but i would expected more since ams already got 787whp on race gas and renntech get ~700whp on pump on their turbo upgrade.

though perhaps weistec turned the tune if this test was on stock internals and stock tranny... thats a detail would be nice to know

i guess now it all comes down to cost to see if thats a good number or not

** edit... i dont see where it says race gas on their instagram? if 832whp is on pump gas then thats super promising!

efiftyfizzle

Check the mercedes boost site.... the one we're not allowed to post a link to, lol

KLR CLS

"
What makes this even more impressive? This is a stock internal M157. The fuel system is also stock. Weistec isn't sharing all the details just yet but the fuel on this run was 110 octane race gas. "

gaspam

found it, race gas and bullet proof trans.. so probably its still going to be making about same on pump gas as stock turbo F10 M5's (BMS is getting 771whp) and about same on race gas as than pure stage 1 turbos M5 (pure s1/JB4/BCM/meth 100oct 821whp).... the 821 whp m5 ran in the 9's so i would say W4 kit will put M157 right there, but at what cost

efiftyfizzle

Cost? Most likely both your kidneys.

e65

The W.3 was supposed to put 734 to the wheels. I'm not aware of anybody who could replicate that. One of their customers got 670whp on MS109 tune.

I need to see some independently obtained numbers, that's what I think.

Fairbird

Sucks , I wanted that kit , when I got w3 in the car they released that video , and one customer I know should see the kit in 2 weeks

gaspam

do you know how much they paid for the w4? I heard some crazy high estimated numbers before like $40-50K ?

at that price i would just start testing with no2 on a built motor and end up with more power for much less

Fairbird

40–50 k including build motor , yes I know .
on stock motor the kit is around 20k or so

gaspam

20K for kit alone is not bad... about 8k more than AMS but w4 should be +100whp more on pump gas.... renntech is same price for 700whp on pump gas, so W4 at $20k seems pretty good price

Fairbird

little over 20 , fine with me

gaspam

for close to 800whp on pump, ~20K is fine by me too

e65

I was told that I could get that kit in Nov 2015. Let's see what happens in two weeks

gaspam

i just confirmed with weistec that the car in that 832 whp vid was the standard tune, we would get in the kit... they were running 50/50 mix of race gas and 91 oct, so sounds like on straight 93 oct the kit would be close to 800 whp and can just run a mix of pump and race gas and get ~830 whp without having to change ecu's so kit is looking even better to me now

also confirmed the ~20K price for kit

Fairbird

Getting while availble

gaspam

they said september

Fairbird

They set new date every time ... You know

gaspam

lol, this is true

amsamge63

W.4 update from Weistec
Should be fun.

Hello.

Thank you for your message and interest in Weistec products. My name is Alex and I will be more than happy to assist you from this point forward.

The W.4 system is capable of producing upwards of 1000 hp on race fuel. Price will be $22,500 and it will be ready to ship at the beginning of November. The system will include upgraded turbos, exhaust manifold and a carbon air-box and inlet tubes as well as custom ECU tuning. It is a complete package that is designed to work with our entire current line up of M157 products including exhaust system and cooling upgrade, however these upgrades are not included in the W.4 package. This is the ultimate M157 upgrade.

We will be accepting deposits , and shipping on a "first come, first served basis". What upgrades have you performed to your E63 so far? The E63 is a great platform for the W.4 package- our test vehicles have proven to be very competent and handle the power well. As pre-requisites, I recommend you upgrade to the full Weistec Cermamic Coated True Downpipes Exhaust System and World Record breaking ECU calibration + Weistec Air Filters. This will ensure you're 100% ready for the W.4 upon it's release.

We will soon be releasing CNC Ported Heads and Forged Pistons and Rods for the M157- they will be released shortly, along with the W.4 Turbos.

Please let me know if you have any further questions or concerns as I will be happy to help. If you need anything, we're here for you. My direct line is 714-602-4910 if you would prefer to speak on the phone.

RaceHorse

Alex, I find it ironic how you feel the need as a somewhat new member to define good business practices for vendors or tuners with your negativity towards EC. You should take your own advice before making a bigger fool out of yourself.

You are acting as a contact person for the Weistec W4 package. Are you a Vendor or just a member? Regardless of your affiliation, Weistec should also be able to provide their products as promised like anyone else. I'm sure there are cars currently down waiting Weistec turbo kits. This turbo is now still being offered a year later than originally anticipated, who's to say they even make the November 2016 date? Nobody is perfect, and things take time, I get it.

At this point taking deposits sounds like a fundraiser to prepare and finance production. For the same price of a low mileage M157 motor complete, the turbos still require the supporting mods of a tranny and downpipes. So, close to half the price of $70k car in mods? Talk about a bad drug habit, but I guess there are always takers. It would be nice to see new software offered helping these cars launch. A 1.7x or 1.8x 60 ft is really sad on AWD, but I don't see axles or diffs lasting with a hard launch.

Good luck to Wiestec if they are able to deliver what they claim. For now, I'll enjoy my old dinosaur with stock turbos.

amsamge63

Not sure who Alex is, but as my user name should indicate, I have AMS so no EC or Weistec.

I define good business practice by what the customer says and not how I define a company. As a long time member like yourself, you should be commenting on the people who had bad experiences with tuners and step in their shoes, unless of course your affiliate with these tuners. I was updating what I was told by Weistec on the w4 because I was interested in the related output, price like this thread's OP and others have commented about the w4 package. I have no power when the w4 will be finally available, but this is what Weistec had said. If they don't deliver on the current delivery date, don't shoot the messager.

I do however agree with you taking deposits for something that is not even devolpe yet is to cover development and manufacturing costs is raisky for the buyer, but we are talking about smaller companies with less than desire working capital to work with.

e65

I find it interesting that you're bashing eurocharged because of downtime when I've had the exact same experience with weistec having to wait four months for what should have been a two-week Turbo upgrade. I had the same experience a second time with Bulletproof transmission rebuild. You talk about who is going to pay for insurance and stuff well for my car I paid over 6 months of insurance while my car was on a hoist.

I was told this W-4 would be done and ready for sale and October 2015. And now you're talking about accepting deposits for nov 2016. I sent my w-3 turbos to powerhaus for a proper upgrade because a W3 turbos did not produce the power that was quoted.

I think you should run a W-4 e63 in the quarter mile. Your dyno numbers don't mean a lot to me after my W3 experience. If it runs low 10s I would be willing to put a deposit on it.