Using an Xcessive LIM with 99 or stock twins

Chadwick · 04-07-2008, 03:29 PM

Using an Xcessive LIM with 99 or stock twins:

The Xcessive LIM is not a direct replacement for the stock LIM if you plan to continue to use the stock or 99 twins. There are several things that don’t allow them to bolt right up. Here is a list of modifications that need to be made:

Oil and Water supply lines need to be bent to clear the front side of the LIM
Primary turbo compressor housing needs to be cocked about 5 degrees out for the piping that runs to the intercooler to fit. Fortunately the Pre-Control and Waste Gate actuators do not need modification if you don’t over do the rotation.
Oil fill neck needs to be heated and bent forward about ½” (thanks Rich for this tip).
UIM front bracket needs to be bent about ½” towards the front of the motor and the slot lowered (I did this with a dremel)
Secondary turbo needs about ¼” shaved off the compressor housing to avoid contacting the LIM.
Heat shield needs to be hammered in on the back of the turbo to avoid contact with the LIM.
Vacuum hard lines need to be bent to avoid the new position of the oil and water turbo supply lines.
Pressure Chamber relocated
Stock Leading coil relocated or modify UIM
Catch tank relocated if using stock Oil fill neck

KaiFD3S · 04-07-2008, 07:31 PM

I spy somebody has the same pulley kit that I have with the acorn Alt nut...lol...

Chadwick · 04-07-2008, 08:17 PM

Quote:

Originally Posted by KaiFD3S

I spy somebody has the same pulley kit that I have with the acorn Alt nut...lol...

yeah, I've got the wide belt (both 6 rib) setup.

Smokey · 04-08-2008, 12:04 PM

very informative Dan, thanks for the heads up

AHarada · 04-10-2008, 08:53 PM

Thanks a lot, this is going to help greatly.

Signal 2 · 04-11-2008, 07:47 AM

Could you elaborate a little on heating the plastic oil fill neck. Heat-gun I assume. Anything else to it, can it be done on the car? Thanks.

Chadwick · 04-13-2008, 10:41 PM

Yes, we used a heat gun. Takes quite a bit of heat to get it to bend, so much so that it will blister the plastic. I would not suggest doing it on the car. It seals with an O-ring, so makes sure you have a new one on hand when you remove it. You could also save yourself the work and buy this: http://mrcmfg.com/catalog/product_in...roducts_id=258

Dan

afgmoto1978 · 04-16-2008, 06:33 PM

I had the same clearance issues, but went with ReSpeed filler neck. It clears

Chadwick · 04-16-2008, 08:16 PM

Quote:

Originally Posted by afgmoto1978

I had the same clearance issues, but went with ReSpeed filler neck. It clears

Interesting, I see from your pictures that you had a clearance issue with the stock leading coil also. I run an aftermarket so I didn't have that issue. I will add it to my list above with your permission.

By the way, mine came with a longer bolt for the one you show.

Dan

afgmoto1978 · 04-17-2008, 05:07 PM

Go for it.

The LIM didn't come with a bolt so I had to source my own.

04-07-2008, 03:29 PM	#1
Chadwick Rotary Fanatic Join Date: Feb 2008 Location: Smyrna, TN, USA Posts: 239 Rep Power: 18	Using an Xcessive LIM with 99 or stock twins Using an Xcessive LIM with 99 or stock twins: The Xcessive LIM is not a direct replacement for the stock LIM if you plan to continue to use the stock or 99 twins. There are several things that don’t allow them to bolt right up. Here is a list of modifications that need to be made: Oil and Water supply lines need to be bent to clear the front side of the LIM Primary turbo compressor housing needs to be cocked about 5 degrees out for the piping that runs to the intercooler to fit. Fortunately the Pre-Control and Waste Gate actuators do not need modification if you don’t over do the rotation. Oil fill neck needs to be heated and bent forward about ½” (thanks Rich for this tip). UIM front bracket needs to be bent about ½” towards the front of the motor and the slot lowered (I did this with a dremel) Secondary turbo needs about ¼” shaved off the compressor housing to avoid contacting the LIM. Heat shield needs to be hammered in on the back of the turbo to avoid contact with the LIM. Vacuum hard lines need to be bent to avoid the new position of the oil and water turbo supply lines. Pressure Chamber relocated Stock Leading coil relocated or modify UIM Catch tank relocated if using stock Oil fill neck __________________ 93 RX7 BB (Race Car) 93 RX7 SSM (Soon to be IBM and a daily driver) 05 Silverado Z71 08 Mini Cooper 80 LS RX7 (for sale) Last edited by Chadwick; 04-23-2008 at 01:02 PM.

04-08-2008, 12:04 PM	#4
Smokey Long Time Onlooker Join Date: Mar 2008 Location: Columbus, Ohio Posts: 31 Rep Power: 0	very informative Dan, thanks for the heads up __________________ 93 Touring - AD coilovers, BBK, full exhaust, PFS SMIC, PFC

04-11-2008, 07:47 AM	#6
Signal 2 Viable Fossil Join Date: Mar 2008 Location: Mid-West Posts: 199 Rep Power: 18	Could you elaborate a little on heating the plastic oil fill neck. Heat-gun I assume. Anything else to it, can it be done on the car? Thanks. __________________ Jim VR R1 FD

04-13-2008, 10:41 PM	#7
Chadwick Rotary Fanatic Join Date: Feb 2008 Location: Smyrna, TN, USA Posts: 239 Rep Power: 18	Yes, we used a heat gun. Takes quite a bit of heat to get it to bend, so much so that it will blister the plastic. I would not suggest doing it on the car. It seals with an O-ring, so makes sure you have a new one on hand when you remove it. You could also save yourself the work and buy this: http://mrcmfg.com/catalog/product_in...roducts_id=258 Dan __________________ 93 RX7 BB (Race Car) 93 RX7 SSM (Soon to be IBM and a daily driver) 05 Silverado Z71 08 Mini Cooper 80 LS RX7 (for sale) Last edited by Chadwick; 04-13-2008 at 11:16 PM.

04-07-2008, 07:31 PM	#2
KaiFD3S Rotary Fanatic Join Date: Mar 2008 Posts: 437 Rep Power: 18	I spy somebody has the same pulley kit that I have with the acorn Alt nut...lol...

04-10-2008, 08:53 PM	#5
AHarada Rotary Fanatic Join Date: Mar 2008 Posts: 162 Rep Power: 17	Thanks a lot, this is going to help greatly.

04-17-2008, 05:07 PM	#10
afgmoto1978 Rotary Fanatic Join Date: Mar 2008 Location: Portland, Oregon Posts: 381 Rep Power: 17	Go for it. The LIM didn't come with a bolt so I had to source my own.