have my roadie booked in for a Supercharing :D

[tombar]

hi Beedub,

You mentioned heatsoak problems with the stage 1 kit.. is it the heat from the engine re entering into the system via air filter?
I'm curious if this can be sorted by getting Stage 2 setup with intercooler and running stage 1 map..

hi tombar.... heatsoak..... heatsoak is when the system, boost pipes, s/c unit itself have become heated and therefore the car feels slower, it doesnt hurt anything, it doesn cause any issues, it just makes the car feel slower.... you could run the stage 2 + intercooler setup But.....at the low boost the stage 1 uses you may loose power as the intercooler circuit will have a natural pressure loss...... a nice small intercooler would be great, but i think the stage 2 stuff would be too large for 4.5/5lbs of boost....

what would you recommend as entry level setup for s54? Do you think stage 2 without the meth kit would not suffer with as much heat soak problems as stage1 ? After how long would I notice the decrease in performance and how significant is it?
And by the way your car is mint

 

[Beedub]

stage 1 is a great entry point and doesnt have the large install costs like the stage 2 costs..... stage 1 really keep the balance of the car an you can drive it ball out fast as you want really, it really suits the car!!! When the heat sets you'll notice a large powerdrop, its quite significant... stage 2 and upwards takes the fun away and makes it all rather serious...... power is very consistant with these kits as they have a giant intercooler and i mean GIANT! !! !! !! !! The stage 2 and upward kits also come with other coolers for oil, it adds another litre of oil to the system ;-)

Main thing is, they all drive like stock. Feel like stock, these kits feel like, you've lost the s54 and added the v10 When its REALLY cold outside.... performance is mind altering in such a small car....

tombar could you be the next UK guy to do this?????? id love another s/c member here in my country.... Its been such a fun road!!

 

[SweetRide]

VF kit looks nice also.... try doing a search info Vf and blown motors ;-) plus they use water / air cooling which is inferior to a proper air / air setup.....

Inferior?? I don't think so. Less PSI loss vs air to air & their miles of plumbing - one of many reasons. Not starting a 'which is better' debate... just do your homework OP. Saying it's unequivocally inferior is complete bs. There's a reason every professional rally car, Ford GT, Mercedes SLR McLaren, Ford Shelby GT500, Mercedes AMG, Veyron etc etc etc run air/water units.

Head over to Zpost, and you'll find a member with firsthand info on the VF unit (not just speculation). Air/water systems are excellent for street use.

 

[SweetRide]

my fave kits are the Ess units... and the G-power with the ASA s/c unit

Btw... the G-Power unit is Air-Water system.

 

[saskia]

Ok , whats this monster like to drive , details please !!

its an absolute hoot to run around in!!! i LOVE it!!!

i use the car on sprint circuits ( alone on a small-ish techical circuit and timed) and its freaking awesome, my aim was to build a sprint vehicle but that was drive-able to and from the venue in relative comfort, i love the sprint scene as its just you on the circuit so you can keep the car in perfect condition ( as long as you dont crash) and its just you, the car and the track..... so no need to worry about other cars ect ect... its usually over 2-3 laps which again allows mechanical sympathy and proper cool downs for the car. My home circuit is curborough sprint course, ive done hundreds of laps in this car @ this venue.... its REALLY been a proper test bed for the car as every mod shows directly to a time on the sprint track. The power really gives the chassis alot to deal with, but the way the car copes with it and deploys it, is pretty nuts.... you'd have to see it to believe it but it completely copes and can use it... (on a warm dry day)

Mostly the car is completely reliable, returns around 23-24mpg on a long run (this drops to around 4-5mpg on track), if i had to do a trans continental thrash and had to do it fast, really fast..... i'd love to take the z4m and have every single confidence that it would be completely reliable sadly my longest journey in the car is the 4.5hr round trip to the tuners that built the car i do love that trip and relish the 6.am start

i'd love to get another uk z4m s/c, sadly.... it seems im the only one thats going to do it :-( all monetry sense has been lost on my vehicle and i will continue to hone and build it until its a true one of a kind.

Excellent stuff , sounds like a race car to me , hopefully you can take her to a meet next year and I can get there !

 

[Beedub]

my fave kits are the Ess units... and the G-power with the ASA s/c unit

Btw... the G-Power unit is Air-Water system.

I no ;-) the g-power is imo one of the best systems out their.... but yeah thanks for pointing that out.

 

[Beedub]

VF kit looks nice also.... try doing a search info Vf and blown motors ;-) plus they use water / air cooling which is inferior to a proper air / air setup.....

Inferior?? I don't think so. Less PSI loss vs air to air & their miles of plumbing - one of many reasons. Not starting a 'which is better' debate... just do your homework OP. Saying it's unequivocally inferior is complete bs. There's a reason every professional rally car, Ford GT, Mercedes SLR McLaren, Ford Shelby GT500, Mercedes AMG, Veyron etc etc etc run air/water units.

Head over to Zpost, and you'll find a member with firsthand info on the VF unit (not just speculation). Air/water systems are excellent for street use.

We'll agree to disagree. It's all opinion, I have mine you have yours ...., the alpha omega GTR uses A/A intercooling and its faster than all of the cars you posted..... 1500hp http://www.youtube.com/watch?v=GYcHZR_Hs0E , theirs no point me listing all the brands that use A/A as, like you say theirs dis-advantages to both... but for my car, which is used hard on a timed sprint circuit , A/A was on number one on my list. Their no pumps to go wrong, no water cartridges that can split, Recovery times are better and on a track in constant high load situations theirs a clear choice... The downsides to a/a is a large boost circuit, complicated to install in such a small space.... Plus's and minus for both i guess.

I've hashed this out numerous times on zpost and CBA rehash it here, ;-) anyone interested take a good look in the zpost engine section, we've really picked apart all the kits and all the pros and cons for each kit is clearly outlined....

heres the post for those interested... take a read... some REALLY good stuff on these threads, especially on the intercooling subject, dont be swayed by me or anyone, do your own research ;-)

http://www.zpost.com/forums/showthread.php?t=758880


Either way .... Boosted z4m = awesome.

 

[Beedub]

JAW???? Update on this??? which shop is doing this for you???

whats your average temps in your part of the world???

 

[tombar]

stage 1 is a great entry point and doesnt have the large install costs like the stage 2 costs..... stage 1 really keep the balance of the car an you can drive it ball out fast as you want really, it really suits the car!!! When the heat sets you'll notice a large powerdrop, its quite significant... stage 2 and upwards takes the fun away and makes it all rather serious...... power is very consistant with these kits as they have a giant intercooler and i mean GIANT! !! !! !! !! The stage 2 and upward kits also come with other coolers for oil, it adds another litre of oil to the system ;-)

Main thing is, they all drive like stock. Feel like stock, these kits feel like, you've lost the s54 and added the v10 When its REALLY cold outside.... performance is mind altering in such a small car....

tombar could you be the next UK guy to do this?????? id love another s/c member here in my country.... Its been such a fun road!!

I'd like to be, but I have too much on my plate right now. Got to get mortgage first.. At the moment Im just doing little research...Im not gonna sell the car and thinking how to get more power in the future... I would even put s65 engine in ... that would be the best option ... I know it is possible but it has to be at resonable cost...

Looks like big intercooler is the way to go, but not sure if I would opt for the meth

 

[Beedub]

heres the 500/550 spec cooler, setrab oil cooler sits above, oil temps are slightly cooler than stock, water stays the same. ;-) interesting thing to note, their is not 1 whole drilled that wasnt their stock, everything mounts up using exisiting brackets and custom supports as part of the kit, i thought that was really cool and also important to me.. anyway.

thickness?

oil cooler with AN billet connections

 

[Jaw]

JAW???? Update on this??? which shop is doing this for you???

whats your average temps in your part of the world???

Little progress at the mo mate! Have been trying to finish my ducati project and am awaiting a few bits and peices to arrive for the zed so I can get everything done at once on the most part, just leaving tweaking and improvements after. Supposed to be going on a trip to the west indies after a relative passing away and then back in the uk over xmas so its looking like the install wont start happening until the end of jan at this rate

place called bm technik will be doing the work, away from home at the mo so just concentrating on sourcing some more parts! At the moment Im just looking at the cooling and brakes. Temperatures in the summer fluctuate between just under 30 and about 45 id say and in the winter average 15-25 so i can imagine heats gonna be a bit of an issue!

 

[Pom]

Hey Jaw,

I'm running a 2006 Z4m coupe down in victoria - were abouts are you?
Really interested to see how you get on with the Stage 1 kit, particularly around install/import costs - i'd be hoping they wouldnt be too big!

Also given our climate and what beedub has mentioned about heat, whether you end up opting for new injectors!

This is def a project i've been considering for mine for a little while now!

Pom.

 

[GroundEffect]

heres the 500/550 spec cooler, setrab oil cooler sits above, oil temps are slightly cooler than stock, water stays the same. ;-) interesting thing to note, their is not 1 whole drilled that wasnt their stock, everything mounts up using exisiting brackets and custom supports as part of the kit, i thought that was really cool and also important to me.. anyway.

thickness?

oil cooler with AN billet connections

Interesting CAC design. Your boost pressures must be tiny as the tanks don't look particularly robust...

 

[Beedub]

heres the 500/550 spec cooler, setrab oil cooler sits above, oil temps are slightly cooler than stock, water stays the same. ;-) interesting thing to note, their is not 1 whole drilled that wasnt their stock, everything mounts up using exisiting brackets and custom supports as part of the kit, i thought that was really cool and also important to me.. anyway.

thickness?

oil cooler with AN billet connections

Interesting CAC design. Your boost pressures must be tiny as the tanks don't look particularly robust...

Tested to 20lbs so far according to ess , so it's pretty robust ;-) i'll use a max of 10lbs

I'd like a new cooler eventually with a much more free flow end tank design, I don't like the 90 degree take offs , no smoothing in this area so airflow much be turbulent, for know its gives great drops in AITs, and that's all I need.

Everything has room for improvement


Sent from my iPhone using Tapatalk

 

[Jaw]

Hey Jaw,

I'm running a 2006 Z4m coupe down in victoria - were abouts are you?
Really interested to see how you get on with the Stage 1 kit, particularly around install/import costs - i'd be hoping they wouldnt be too big!

Also given our climate and what beedub has mentioned about heat, whether you end up opting for new injectors!

This is def a project i've been considering for mine for a little while now!

Pom.

Hey mate, I'm over in perth (sorry for the long, long reply - didn't see the message!)

Import cost wise for stage one, you woulnd't be TOO stung. Stage 1 to the door set me back around $5k (not necesarily the price as the garage do a 5k up front 5.5k on completion basis) so import costs come to around $500 or so.

So far have been told that I'll get away without injectors, doesn't help that I'm pulling my finger out now that it'l be cooler, I suspect this will be non-stop trial and error on the most part!

 

[Jaw]

i take it this didn't come to fruition in the end???

update??

It certainly fell by the wayside as I was planning to upgrade to a 360, then toyed with a porsche track toy and even an m5 conversion, and have been building a race bike which has taken up a load of time

However, after putting the Z up for sale (and going through the motions with a buyer who had a change of heart) I realised how much I don't want to sell it really so it's back on Have two perspective garages lined up so going to have a detailed chat with both, finalise an exact package in 5 day's time.. Then hopefully by the end of May or June I'll have a progress update

Thanks again for all the info so far, have had a read through again and general research on a few things so at least know where I'm heading. I'm chasing 5-600 bhp as a minimum - if I'm spending 15k on mods, then I'm going to be keeping the car and going all out

Have made enquiries a couple of months ago about the Slek design's carbon fibre kit for the coupe but haven't had any news back yet

 

[Beedub]

well done jaw, take your time and REALLY research the options, including the n/a options too, nothing wrong with a n/a screamer, remember your climate is very different so the cooling system as a whole, intercooler, rads, oil coolers, will need costly work to support 600hp.... this will not be cheap by any stretch of the imagination, don't forget all the other pieces that will need work to support the power.....

anyhow i had mine out yesterday feels ballistic!! such an event to drive, wouldn't be without this car!!

 

[Jaw]

Cheers 'dub : to be fair, it's mostly your fault :lol:

Have thought about N/A extensively, but I just can't get near to what I'm looking for.. you're right on that, so can see myself having it long time - have a fairly solid plan of what I want to do visually too as well as for brakes and suspension. Will be really interesting to see how we go with the cooling side of things. I know of a couple of guys who have supercharged the M5 and M3 so going to try and see what problems they ran into. The biggest problem is that there seems to be so many less people who actually know what they're talking about here, and the biggest concern is just finding somewhere genuine

 

[jimmybell]

one day id love to do the NA route as a comparison. i think you can do quite a bit if you pay for it, ive heard of over 400 NA from an S54, thatd be sweeeeet.

 

[ga41]

one day id love to do the NA route as a comparison. i think you can do quite a bit if you pay for it, ive heard of over 400 NA from an S54, thatd be sweeeeet.

450+ hp with a 3.5L VAC Stroker Kit. Of course that's a race engine now but from what i read you can get a streetable 390-400hp out of an S54. Money permitting i would go that route...

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