Anyone running a RMS S/C on a swap car?

[E30FTW]

I'm running a Rotrex C38 CF blower on my S52 e30. It is Active Autowerkes stage II kit, with a smaller (higher boost) pulley. I call it stage 2.5...

Makes 400whp+

All the plumbing, be it intake, hot side, or cold side all needed to be custom made. Some of the AA plumbing was able to be cut up, reclocked, and otherwise utilized, but most of it was made from new materials.

The power delivery is great, and its entirely possible to drive the car like a normal person and not know you have a rocket ship under your right foot.

[triggrhaapi]

I bet. I'm torn because the power response from the Eurosport kit is incredible, the aftercooling is equally so, and the price is insanely unbeatable.

My only concern is if the kit will clear my IX booster.

[sharky]

if what will clear the ix booster? As for the C38, yeah I am sure doing the IC was a pain in the ass as far as tubing. Thankfully rubber flexible with the heat excanger. i think the intake on my RMS is going to be the tricky bit.

[triggrhaapi]

The Eurosport kit is an intake manifold with aftercooler and supercharger bolted to it.

Looks like this:

[Bimmerman325i]

If I had the cash, that's the kit I'd buy.

[evangreen]

Rms posted a group buy thread on here awhile ago, I thought it said that fitment wasn't an issue in an e30 with abs. Might want to check that thread, I believe there was a few pics of the setup on an e30

[rneedham1979]

What is the highest likely output from a TS, both whp and wtq?

I understand and agree the TS is sweet in stock form but where does it max out?

higher whp != better. Compare the torque curves of both stock kits. The Eurosport blows any CF blower out of the water.

There are many of the TS kits making over 400whp with mods, just like your kit is making over 400whp with mods.

Can you send a link? How many are running the same whp and wtq as a CF?

There's a guy on BFC who's been making over that since 2007. What the hell are you talking about?

The TS is clearly a great set up but for the money a used CF seems more practical and has the ability to make more power with slight modifications. NO? There seem to be quite a few guys running the RMS sage II kit with different tunes making 420-450whp, are there TS making that kind of power? (this is a question)

The one thing I know for sure is the OP won't be disappointed either way, 400whp supercharged E30 is pretty nasty!

[e30polak]

After driving a 500whp RMS supercharged e36 a couple weeks ago, I decided to ditch the turbo idea. Hopefully I will have a stage 2 kit on my car by this summer.

And rneedham, we need videos of your beast! :hitler:

[Bimmerman325i]

What is the highest likely output from a TS, both whp and wtq?

I understand and agree the TS is sweet in stock form but where does it max out?

No idea. Ask TRM or matt, I just know what I've read. 400whp is easy with those, and they make full boost off idle.

Can you send a link? How many are running the same whp and wtq as a CF?

No idea and no idea. Numbers are pointless comparisons though. The TS makes the same wtq or more, and over a larger rpm band. Peak numbers are for dyno queen handitards.

The TS is clearly a great set up but for the money a used CF seems more practical and has the ability to make more power with slight modifications. NO? There seem to be quite a few guys running the RMS sage II kit with different tunes making 420-450whp, are there TS making that kind of power? (this is a question)

The one thing I know for sure is the OP won't be disappointed either way, 400whp supercharged E30 is pretty nasty!

Ask TRM or matt that question, I'm far from an expert. They have set up many TS with 400whp. The new kit has a larger blower that should give much more tuning headroom. A 400whp TS is likely faster than a 500whp CF blower just because of how the power is delivered. Compare a dyno from each and you'll see what I mean.

[triggrhaapi]

The TS is clearly a great set up but for the money a used CF seems more practical and has the ability to make more power with slight modifications. NO? There seem to be quite a few guys running the RMS sage II kit with different tunes making 420-450whp, are there TS making that kind of power? (this is a question)

The one thing I know for sure is the OP won't be disappointed either way, 400whp supercharged E30 is pretty nasty!

The Eurosport is worth the extra money for all the area under the curve you get from it. The response is better, the intercooling is better, and yes, there are guys with 2.5L TS systems making 450whp.

To me it's worth it. CF supers are, in my opinion, retarded. A turbine is not meant to be linearly driven, it's meant to be exponentially driven.

Oh and also, for the Eurosport, all you need to hit 400whp is minor head work (which I already have), a schrick exhaust cam, a pulley and a tune. Oh and tuning is WAY easier on a TS because no matter what RPM you're at, the engine displaces the same amount of air each revolution, so the tuning is no different software wise than N/A tuning.

[madjurgen]

After driving a 500whp RMS supercharged e36 a couple weeks ago, I decided to ditch the turbo idea. Hopefully I will have a stage 2 kit on my car by this summer.

You seemed pretty set on going turbo. Can you elaborate on your experience and why youve changed your mind?

[matt]

Oh and tuning is WAY easier on a TS because no matter what RPM you're at, the engine displaces the same amount of air each revolution, so the tuning is no different software wise than N/A tuning.

That's absolutely not true.

[triggrhaapi]

It IS true with a twin screw, it is NOT true with a centrifugal. Well, at least if it's directly driven. If you use a viscous transmission, then it's PSI based and the super doesn't make the same number of revolutions per engine revolution at any given RPM.

However, a twin screw WILL displace a specific amount of air per S/C rev. That's why their size is measured in liters.

[e30polak]

You seemed pretty set on going turbo. Can you elaborate on your experience and why youve changed your mind?

I drove a few more turbo e30s, and realized that I didn't like the way the car controlled the power as well. For my power goals, and the way that I use my car, I don't feel it's the right fit. I do canyon runs a lot, and I plan to track the car soon. Therefore I don't want the car to be overly difficult to control in those situations.

I also didn't like the laggy-ness of the higher powered turbo set-ups. I realize that spool time and power on set can all be controlled with the proper set-up and a good tune, but that will be way more money then I'm willing to spend.

I 've driven a couple of SC e36 m3s, and I love how smooth the powerband is, and how comparable it is to an NA engine. Also a Blower set-up will add less weight to the front of the car then a turbo set-up will.

Finally, used blower set-ups go for $1500-$3000 all day long on BFC, and will be much more reliable then a turbo set-up for the same price. I'm only looking to make around 350whp, so a blower is the best option for me.

[jrdeamicis]

I drove a few more turbo e30s, and realized that I didn't like the way the car controlled the power as well. For my power goals, and the way that I use my car, I don't feel it's the right fit. I do canyon runs a lot, and I plan to track the car soon. Therefore I don't want the car to be overly difficult to control in those situations.

I also didn't like the laggy-ness of the higher powered turbo set-ups. I realize that spool time and power on set can all be controlled with the proper set-up and a good tune, but that will be way more money then I'm willing to spend.

I 've driven a couple of SC e36 m3s, and I love how smooth the powerband is, and how comparable it is to an NA engine. Also a Blower set-up will add less weight to the front of the car then a turbo set-up will.

Finally, used blower set-ups go for $1500-$3000 all day long on BFC, and will be much more reliable then a turbo set-up for the same price. I'm only looking to make around 350whp, so a blower is the best option for me.

Im in your boat.

The high HP turbo E30s are just down right scary. Giant fucking smile scary.


I think 350whp would be perfect for an E30.