I know you have to eliminate the pills in order to use a boost controller, but my 99 spec twins don't have pills in the hoses. They appear to be inside the nipples on the compressor housing. How do I remove the pills from the nipples?

 

mazda just drilled the holes in the nipples the size of the pills so in order to allow full flow to the boost cont. you will have to drill the nipple I ended over sizing it a good amount.

 

no need to worry about the pills with regards to this. Just hook up the vac lines to the boost controller and you're good to go. That's how I'm running my Profec B on my 99 twins.

 

how do u expect to drop the boost below stock with a controller or hold it at 10lbs if u cannot remove the restriction of the nipples to allow the controller to take over?

 

Yeah, drilling out the nipples on the actuators would be the way to go. That shouldn't be that hard - you might have to remove the actuator from the car to properly do it, but that shouldn't be a biggie.

Dale

 

No, the pills are not in the nipples on the actuators, they are in the ones on the compressor housing.

 

I had to remove the airbox to gain access for my drill.

I coated a #20 drill bit with thick grease & using slow speed, drilled out the nipple.

The grease will retain the majority of the metal chips. You can finish up by using a vacuum cleaner on the nipple & suck any remaining chips.

 

The turbos haven't been installed yet, so I won't have issues with gaining access. I just don't want to drill into something and F it up. And also, the pills are not at the ends of the nipples, they are at the base where it attaches to the tube going into the compressor housing. I hope this won't be an issue.

Anyone with 99 spec turbos who had to drill them out? I guess I could just PM Tim Benton.

 

Worst comes to worst you can mark the compresso housings and drill them from the backside. They are only pressed in and with a little wiggleing the tubing can be removed. Then drill out and push them back in using a bearing locker. Many different ways to do it just depends on what your capable of (tools amd press's)

 

Don,

Are you using the PFC with the stock solenoid to control boost or another boost controller and seperate solenoid?

Tim

 

Mine were the same way(the tube itself was drilled with the oem restrictor size...no pills) like i said just drill the tube over size so you don't have to worry about doing it on the car later, worst case if you over size it to much you will have to put a MBC in line.

 

GReddy PRofec TYPE-S.

 

Don,

I'm using my 99 spec twins with the PFC stock boost control and it works fine. If with the Greddy boost controller, you replace the lines that would normally have the pills in it in the 93-95 turbo control system, then yes, you'd need to do like sereneseven posted just above and drill it out to the width of the opening on your old stockers when you take them off.

Tim

 

HDP,

can you take a pic of where the pills are?

I have the Profec B and 99 specs and seem to be able to control the boost without much problems.

Off the turbos run around 7lbs. On I run almost 1 bar.

I am troubleshooting some leaks but everything else seems fine. When I just had the PFC control boost the car felt exactly the same as with the Profec hooked up.

 

Tim, for some reason I thought you had a GReddy boost controller. I ported my stock wastegate without issue, so I guess this shouldn't be much issue either. Thanks guys.

 

The pills are seated down inside both nipples, not at the end.

 

Don,

You get a new set of turbos too? Mine were nice and shiny when I get them from Jesse a couple of years ago, 0 mile 99 turbos. I bought the apexi boost controller to add to the PFC but haven't gotten around to installing it. Just looking at the picture, I wonder how the brass cyclinder piece connects to the turbo housing? If it comes out easy from both turbos, you could just switch those. Just a guess and I should know by now that nothings easy on these cars.

Tim

 

Ugh...so maybe I'll drill it out :P

 

Drilling the restrictor out is easy. I did it on the car, but it really helped that I had a Dremel with the flex attachment. I couldn't fit my drill in that spot. Coat the bit with axle grease.

I vaguely remember that tube being a compression fit into the housing, and I think there may be a snap ring.

 

When I ordered my '99s from the rx7 store I asked them to drill out the nipple restrictors before shipping. They did a fine job at no additional cost. I know this may not help you but offer up the info for those who may order a set in the future.

With Damons man boost setup installed the turbos boost perfectly.

 

Thats what i did years ago.Take a set of pliers and twist it up-down.Eventually it 'll break loose(it is stuck with blue loctite).

 

Yep, about 3 years ago... . I got them off eBay from a guy who decided to go single at the last minute. They are brand new with 0 miles also. So your primary does not have the dual nipple tube like mine? Using your stock boost control, you would need to keep the pills, correct?

 

Yep my primary does have the dual nipple tube and since I'm using the stock control system through the PFC, I needed to keep mine in there.

Tim

 

Did you have your wastegate ported? I decided to do mine and I think it turned out pretty well. I'm trying to cover all the bases so I won't have any problems later.

 

I thought I had read elsewhere that the '99s didn't need their wastegate ported?