Trying to summarize Super eta (S-eta) stroker build info.

[TrentW]

This thread is chock full of good info.

[Pennyw1se]

This thread is chock full of good info.

Seconded!

Im wondering if anyone could answer a few questions.

I too have an SETA and am planning on sourcing parts to start a stroker build. I am in no real rush and I use my E30 as a daily driver.

My driving habits right now are not aggresive, at all, so revving past 4k rarely happens. Since this is the case, does anyone have a "get this first, get this last" list I could use? I'd like to build this in stages, meaning I would buy and install the stuff in stage1 first, then buy and install the stuff in stage2, etc.

Flash's list appears to be the best out there so I'll use it:

Stage1
325i 173 ECU
325i intake manifold
(from http://www.r3vlimited.com/board/show...959#post920959)

Stage2
325i throttle body
325i throttle position switch
325i intake bellows
325i air flow meter
325i 3.0 fuel pressure regulator
325i vacuum line from brake booster, to bellows, and to throttle body side

Stage3
325i inner valve springs
325i cam


Again, Im not a super aggresive driver and I use the E30 as my DD so I do not plan on pushing past 4K on my tach until after installing the 2.5i cam and inner valve springs.

Anyone have any input or recommendations?

[phenryiv1]

Seconded!

Im wondering if anyone could answer a few questions.

I too have an SETA and am planning on sourcing parts to start a stroker build. I am in no real rush and I use my E30 as a daily driver.

My driving habits right now are not aggresive, at all, so revving past 4k rarely happens. Since this is the case, does anyone have a "get this first, get this last" list I could use? I'd like to build this in stages, meaning I would buy and install the stuff in stage1 first, then buy and install the stuff in stage2, etc.

Flash's list appears to be the best out there so I'll use it:

Stage1
325i 173 ECU
325i intake manifold
(from http://www.r3vlimited.com/board/show...959#post920959)

Stage2
325i throttle body
325i throttle position switch
325i intake bellows
325i air flow meter
325i 3.0 fuel pressure regulator
325i vacuum line from brake booster, to bellows, and to throttle body side

Stage3
325i inner valve springs
325i cam


Again, Im not a super aggresive driver and I use the E30 as my DD so I do not plan on pushing past 4K on my tach until after installing the 2.5i cam and inner valve springs.

Anyone have any input or recommendations?

You REALLY don't want the ability to rev past the stock ETA redline without the "i" valve springs. I'd do those FIRST (or at least before the DME swap). Even if you try to keep the revs low, it could be a disaster if you accidentally blip it too high during a downshift.

[phenryiv1]

Now that I hava all of my parts, I am wondering whether I should have any work done to the head before I do this install. What should I do or have done before I start putting this in the car?

I was considering having the valves done (grond, replacing seals, etc.). How much should it cost to have this done by a shop? Could I have a shop grind the valves then I handle re-assembly at home?

[Pennyw1se]

You REALLY don't want the ability to rev past the stock ETA redline without the "i" valve springs. I'd do those FIRST (or at least before the DME swap). Even if you try to keep the revs low, it could be a disaster if you accidentally blip it too high during a downshift.

While I get what you are saying, doesnt that contradict what was said in http://www.r3vlimited.com/board/show...959#post920959 ?

EDIT: I take that back. I guess at the very least I should upgrade my valve springs first.

[phenryiv1]

While I get what you are saying, doesnt that contradict what was said in http://www.r3vlimited.com/board/show...959#post920959 ?

EDIT: I take that back. I guess at the very least I should upgrade my valve springs first.

What you say is correct, but I would not risk it on my car, particularly if it was my only car.

[BigSam]

The intake manifolds are different between the 's-eta' motor and 'i' motor. The intake runners are significantly larger on the 'i' intake and match up to the 885 head properly. It is probably best to just get the whole intake assembly off a donor car, as someone suggested earlier.

I know that it has been mentioned off hand in this thread, but I figure best to put it in it's own little post.

[nando]

seta intake ports are the same as i intake ports.. but yes the manifolds are different.

[phenryiv1]

Head goes to the shop Tuesday to be checked over. As I reassemble and reinstall it, I will update this thread.

[TrentW]

Anyone know what the hp & torque specs are for a stock super eta?

[phenryiv1]

127 HP and I think 168 ft/lb.

[phenryiv1]

Finally getting ready to start swapping in parts.

I may leave my current head in place and swap in the valve springs and cams from another "i" car and use the 885 in the pics above to be rebuilt for a more permanant install later.

[phenryiv1]

Does anyone have a picture of the TPS?

[TrentW]

Here ya go--

[phenryiv1]

Here ya go--

Thanks. What is it bolted to? Is it on the head?