Question on REW rebuild - Page 6 - RX8Club.com



Reply
 
 
 
Thread Tools Search this Thread Rate Thread
Old 05-11-2017, 11:03 PM   #126
Modulated Moderator
iTrader: (3)
 
dannobre's Avatar
 
Join Date: Feb 2004
Location: Smallville
Posts: 12,144
Quote:
Originally Posted by strokercharged95gt View Post
Thanks for the responses. I just got a response from AGP, they stated that I should also run with no restrictor. I will give it a shot, I have my fingers crossed that the 3" v-band welded onto the turbine will be close to a direct fit with my current downpipe... It's getting too hot in Florida to be welding outside.

Edit: just received the turbo, the flange is a different style and sticks out too far to be able to fit the dimensions of the precision turbo. So I now have to order a special flange and redo the down-pipe after I wait another week for the correct flange.... I wish they would have let me know that I had to order their special flange when I got the turbo!
The turbine housing flange should be able to be machined to a 3" vband. Mine came with the Marmon flange and the turbo shop machined it to a 3" vband no problem.
dannobre is offline   Reply With Quote
Old 05-12-2017, 08:43 AM   #127
Registered
Thread Starter
 
Join Date: Sep 2005
Location: Tampa
Posts: 311
I was expecting a chamfered type v-band flange on the turbine, but it is squared (never seen it before). However, I spoke with Boostlab this morning and he says that I can use a conventional type v-band flange on the downpipe side and it should fit (weird that a vband would hold tight two different flanges). The turbine flange also sits roughly 1/2" rearward which makes fitting my existing downpipe impossible. I will have to cut off about 1/2" and re-weld.

You can see in the first pic (just in front of the strut brace) the flange shape. It may be normal to BW, but I have always used Precisions. In the pictures the turbo is sitting a 1/2" forward and a 1" to the driver side of the final mounting position.





Last edited by strokercharged95gt; 05-12-2017 at 08:46 AM.
strokercharged95gt is offline   Reply With Quote
Old 05-12-2017, 08:52 AM   #128
Modulated Moderator
iTrader: (3)
 
dannobre's Avatar
 
Join Date: Feb 2004
Location: Smallville
Posts: 12,144
I had the opposite problem when I changed mine. It was about 1/2" shorter than the last housing.

I was glad that I hadn't ceramic coated the pipe....

Hope you don't have problems ...I can't see how that is going to seal properly.
dannobre is offline   Reply With Quote
Old 05-17-2017, 07:28 AM   #129
Registered
Thread Starter
 
Join Date: Sep 2005
Location: Tampa
Posts: 311
Well I learned a valuable lesson on making a downpipe, always leave a few inches of straight pipe off of the v-band flange in case you have to shorten or lengthen it in the future. My original downpipe made a 45 degree angle immediately after the v-band flange making it impossible to cut the 0.5-inch off of the downpipe and get anything to line back up. Instead of making two cuts and one weld, I had to make about 7 cuts and 6 welds. I may just redo the down-pipe in the future with 3.5" tubing and an open downpipe.

So first thoughts on the new turbo, I did end up putting a 0.075 restrictor inline. I spoke with the guys at Boostlab and they said with 120 psi oil pressure that i could run anything over 0.06" and would be okay.

I drove the car around for about 20 minutes for a brief break-in. The first time I gave it part throttle in the mid-RPMs she came online. I hit overboost (17 psi) almost immediately when the turbo was ramping up. This turbo is loud! I have always owned Precisions, and the borg warner is not even on the same level of noise. I wasn't taking the car over about 6000 RPMs because I wanted to make sure my VE fuel table was dialed in with the new snail. Based on my logs, I am getting 10 psi by about 4300 RPMs and full boost not much after that (hard to tell tires are breaking loose). With it being over 90 degrees when I took the car out yesterday I noticed AITs were hovering around 120 F.

I am going to try and hook up the 2-step and launch control next. After that maybe a trunk mounted meth/water injection system. I have a AIS system on my mustang, but am looking at the Devils Own vs AEM for the 8. Anyone have any suggestions on which system is more reliable or better designed for rotary's? I run 50/50 mix on my mustang, looking to run more of a 25 meth/75 water on the 8.

Last edited by strokercharged95gt; 05-17-2017 at 07:31 AM.
strokercharged95gt is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Jimmy’s First Turbo Build (Greddy) JimmyBlack Series I Major Horsepower Upgrades 176 09-14-2016 06:24 PM
2004 RX8 Engine Rebuild ÜberJumper Canada Forum 18 05-17-2016 11:05 AM
Is there a recommended full rebuild kit? Shnifty Series I Tech Garage 23 12-18-2015 12:49 PM
First RX8, but not my first rodeo GM Enthusiast New Member Forum 10 10-19-2015 07:31 PM
Rebuild sooner or later? MIGhunter Series I Tech Garage 2 09-05-2015 07:21 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 01:54 AM.


All content Copyright © 2017 by Internet Brands, Inc.