Help with my seta to i swap

[imagine-02]

I'm pretty far along in the process of swapping an I engine from an 89 into an 88 seta.

I'm not sure what to do about some of the differing components.

In this picture I have the I intake elbow and seta brake booster in the car.


The I intake elbow has a port on it leading to the line from the brake booster, which then leads to the 2 throttle body ports on the right side.

The seta intake elbow does not have this port. The seta also doesn't have a split line from the brake booster, so it only uses the bottom port on the throttle body.

Can I just plug the top port on the throttle body and the port on the intake elbow, so they aren't being used?

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Does this line lead to the port on the underside of the throttle body?


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How do you get the CSB off the drive-shaft? I have the 2 halves separated and the retaining clip removed. I just can't get the CSB to slide off the shaft.

[20gmr]

yes you can plug both ports........yes that lines goes to the nipple on the bootom of the throttle body but make sure you have the purge valve in that line. and csb is just kind of a mofo.i normally have someone help and hold the driveshaft upright and use a pry bar as a drift to pound the csb off. also make sure you rotate the drive shaft every few hammer swings to keep the csb coming off straight....

[imagine-02]

Thank you

[MR 325]

There is also a 325i intake boot that does not have the port for the brake booster hose. I believe this was on the 90-91 cars but I can't remember for certain.

[imagine-02]

Nice, I'll keep a look out for one of those.

[Regnar75]

Just finished this swap its pretty awesome. I know the 2.7i sticky is terrible right now and pretty much 18 pages of nothing but I just put a post with all issues I ran into and my way around them plus little extras in there that might help you. Check it out. I plugged throttle body coolant lines as well