View Full Version : downpipe / downpipe rubbing
fsuarez
01-17-2013, 11:22 PM
so i just replaced my old turbo with a gt28 from cxracing.
everything has been set for it finally got it on and works fine, problem is since the turbo is slightly shifted it forces the down pipe and steering column to rub against each other.
please any suggestions would be helpful
i found that if i raise the downpipe/piping it might clear, or maybe an extended elbow for the downpipe, idk
motor: rb20det
chassis: 1990 240sx base model
shiftdrift
01-17-2013, 11:29 PM
Take hammer. Massage down pipe. Profit.
fsuarez
01-17-2013, 11:36 PM
Take hammer. Massage down pipe. Profit.
its a ceramic downpipe...i dont think that'll work
STR8E180
01-19-2013, 10:09 PM
its a ceramic downpipe...i dont think that'll work
ceramic ? u mean cast?
brndck
01-20-2013, 12:19 AM
its a ceramic downpipe...i dont think that'll work
the photo you posted is of a cast downpipe.
perhaps you should contact the manufacturer and make them aware of this problem.
in the mean while, i would suggest buying an aftermarket elbow, and bashing it with a hammer to create the required clearance.
:goyou:
what exhaust manifold are you using?
fsuarez
01-20-2013, 01:32 AM
the photo you posted is of a cast downpipe.
perhaps you should contact the manufacturer and make them aware of this problem.
in the mean while, i would suggest buying an aftermarket elbow, and bashing it with a hammer to create the required clearance.
:goyou:
what exhaust manifold are you using?
yeah cast, my bad:picardfp:
i found that an aftermarket elbow with a flange will give me enough clearance, well i hope it does, wont know til the parts arrive, but ill keep this thread posted on what happens
im using the stock manifold
brndck
01-20-2013, 10:55 AM
Was the cxracing turbo sold/advertised as a direct for replacement for your stock turbo? Or was it just a universal t28?
I've heard of people having this issue with tomei manifolds, but never with oem manifold.
fsuarez
01-20-2013, 12:38 PM
Was the cxracing turbo sold/advertised as a direct for replacement for your stock turbo? Or was it just a universal t28?
I've heard of people having this issue with tomei manifolds, but never with oem manifold.
its advertised as "bolt on fitment, fits stock manifold and downpipe" and its also advertised for "89-99 Nissan 240SX S13, S14, Silvia Chassis with RB20DET RB25DET Engine Swap"
with the last part i would expect the turbo to not give me problems with a 240sx but it did, oh well
even so the guys over at cxracing are legit, they'll hook it up when it comes to prices if you go in person but dont carry much for rb20 swaps, carry more for sr swaps
fsuarez
01-20-2013, 12:42 PM
i also found that if i were to raise my motor slightly it would clear the problem, but not sure if it would create unnecessary vibrations and other problems
STR8E180
01-20-2013, 12:59 PM
the photo you posted is of a cast downpipe.
perhaps you should contact the manufacturer and make them aware of this problem.
in the mean while, i would suggest buying an aftermarket elbow, and bashing it with a hammer to create the required clearance.
:goyou:
what exhaust manifold are you using?
I think on a right hand drive car it would fit
fsuarez
01-20-2013, 01:12 PM
I think on a right hand drive car it would fit
If I could, I would
brndck
01-20-2013, 03:04 PM
I think on a right hand drive car it would fit
lol of course it would! the steering shaft would be on the other side!
op: here is the solution. convert to rhd. i've got a rhd firewall and steering column for sale. :keke::keke::keke:
fsuarez
01-21-2013, 01:18 AM
lol of course it would! the steering shaft would be on the other side!
op: here is the solution. convert to rhd. i've got a rhd firewall and steering column for sale. :keke::keke::keke:
thanks for the offer, but for now im just trying to get my car running
fliprayzin240sx
01-21-2013, 10:48 AM
Raise it then. Better yet, grind where it rubs or notch it but cutting it, then welding it back up.
fsuarez
01-27-2013, 10:31 PM
the flange worked perfect, gave it more than enough room
OrangeVirus1
01-27-2013, 10:41 PM
gt28 from cxracing.
:picardfp:
KoukiPuffs200
01-28-2013, 10:42 AM
I had the same issue when I installed my specR t28, you have to buy the Megan elbow or Tomei. I'm not sure of any others that fit, but the single port elbows is what you need. the dual port ebay $50 one will NOT fit. I went with Megan and fix the problem.
Also might try reclocking the turbo just a hair.
Srsil
01-28-2013, 11:26 AM
Get a hold of mckinnley and just buy the spacer u put betweeb ur o2 housing and the turbo moves the o2 housing back and will clear the steering shaft guys using a factory r32 crossmember have been doing it forever
OrangeVirus1
01-28-2013, 11:37 AM
Also might try reclocking the turbo just a hair.
Reclocking the turbo won't accomplish much, since you can't move the hotside when reclocking a turbo, it only attaches to the manifold one way.
fsuarez
01-28-2013, 01:03 PM
Get a hold of mckinnley and just buy the spacer u put betweeb ur o2 housing and the turbo moves the o2 housing back and will clear the steering shaft guys using a factory r32 crossmember have been doing it forever
yeah i did this, it worked
yeah i did this, it worked
Can we get an image of this spacer?
fsuarez
01-28-2013, 02:08 PM
Can we get an image of this spacer?
didnt really take a picture of it, but bought it from ebay:
Nissan Skyline RB20 RB25DET Turbo Downpipe Weld Flange | eBay (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=271143480821)
ill take a picture of it already on later tonight
so this spaces the oem turbo elbow enough to clear the steering shaft? how much room are we talking about?
fsuarez
01-28-2013, 05:27 PM
so this spaces the oem turbo elbow enough to clear the steering shaft? how much room are we talking about?
well luckily mine was not rubbing against it hard, only glancing it but when turning the wheel it scrapped it bad,
it moved the elbow about 3cm, doesnt hit anymore, and even at its worse the elbow and the steering column only come close to about a cm
i was still able to connect my piping without making cuts, only had to pull my piping back a bit for the holes to ling up
ill post photos later tonight
are you having the same problem?
well luckily mine was not rubbing against it hard, only glancing it but when turning the wheel it scrapped it bad,
it moved the elbow about 3cm, doesnt hit anymore, and even at its worse the elbow and the steering column only come close to about a cm
i was still able to connect my piping without making cuts, only had to pull my piping back a bit for the holes to ling up
ill post photos later tonight
are you having the same problem?
Well my goal is to have an RB in my convertible here pretty soon, and while I wait I am doing as much research as I can, and one thing that concerned me was the steering shaft clearance, however, you figured out an inexpensive yet effective way of solving it, THANK YOU! Which mounts are you using? and I am guessing you need two exhaust turbo gaskets?
i had same problem just used a hammer and made it happen
fsuarez
01-28-2013, 11:45 PM
i had same problem just used a hammer and made it happen
so you didnt have a cast elbow...
fsuarez
01-28-2013, 11:48 PM
Well my goal is to have an RB in my convertible here pretty soon, and while I wait I am doing as much research as I can, and one thing that concerned me was the steering shaft clearance, however, you figured out an inexpensive yet effective way of solving it, THANK YOU! Which mounts are you using? and I am guessing you need two exhaust turbo gaskets?
im not sure on the mounts, the swap was already in there when i bought it
fsuarez
01-28-2013, 11:52 PM
Can we get an image of this spacer?
heres the picture of the flange
heres the picture of the flange
HOLY CRAP THATS BEAUTIFUL!!!! Thank you for all your help!
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