Turbo options for 450bhp(ish)?

L18M · January 11, 2011, 10:11:17 PM

i think i must the the unluckiest rex owner in the world! not even Nik is anywhere near close to me.

Finally have the fc running and engine rebuilt twice now, hopefully wont be 3rd time lucky, but when taken out for a test run the exhaust started to pour out lots of smoke.

Given the engine is 100% ok it might be a oil seal in the turbo (xs power, no comment). Assuming it is the turbo (mani will be taken off tmr for inspecting to make sure is not from engine) what are my turbo options to get 450bhp?

setup:
extended street port s5 fc engine
v mount
bosche 044 fuel pump
sard fpr
1680\'s secondary inj
3" exhaust
ext wastegate (not sure on size)
exidy organic clutch
profec b spec 2 ebc
AP Eng PFC

I think ideally a hotside a/r 1.0 for a quicker spool but wont run out of puff higher up in the rev range (after all, rotaries are happier revving the nuts off them) and thats all i know.
Nice to get a T04R, GT35 but what else is out there that people would recommend?
Holset hx35? Master power?
Budget of about Â£500.

am open to ideas as my turbo knowledge is rather limited.

CHeers guys & girls.

PS not i have not driven it nor picked it up. will prob visit her tmr.

davehg · January 11, 2011, 10:15:07 PM

who built the engine?

L18M · January 11, 2011, 10:27:45 PM

Quote from: davehg;736361who built the engine?

McCARTHY on here aka JM Garage / Full Flow Customs.

davehg · January 11, 2011, 10:29:40 PM

you should be able to tell if the turbo oil seals are gone by looking for oil seeping out of the compressor side.

L18M · January 11, 2011, 10:32:05 PM

cheers dave will check it out if i end up going down tomorrow :Thumbs-up

kind of wish turbo is gone so can get a bigger one :Giggle, not that i can afford it at the moment

stylus350 · January 11, 2011, 10:40:32 PM

Quote from: L18M;736368cheers dave will check it out if i end up going down tomorrow :Thumbs-up

kind of wish turbo is gone so can get a bigger one :Giggle, not that i can afford it at the moment

Internet myth says those turbos like a restictor in the feed to stop them smoking.

davehg · January 11, 2011, 10:48:57 PM

very true, different turbos require a different size restrictor in the oil feed pipe on the top of the turbo. if not restricted correctly too luch oil can be pushed passed the seals and out the exhaust.

TiddlesRX7 · January 12, 2011, 08:10:11 AM

Quote from: stylus350;736375Internet myth says those turbos like a restictor in the feed to stop them smoking.

Thats not a myth. my mate suffered with it on his Skyline. Bought another XS power turbo (or got it relaced can\'t remember). It was the same, smoking like a ...... Turned out he hadn\'t fitted a restrictor in the oil feed line. Soon as he did it all stopped.

Ade

Prof · January 12, 2011, 08:38:24 AM

2nd that - I run a hybrid turbo - probably good for upto about 350-400 bhp, and that requires a restrictor for the oil feed.

Another cause for smoking from the turbo is a poor or blocked oil drain. Make sure the drain is big enough - for your turbo AN10 or bigger, and flowing downhill, as there is no pressure this side - so it needs to be able to drain back to the oil pan and not pool in the hose/pipe.

stylus350 · January 12, 2011, 05:57:45 PM

Quote from: TiddlesRX7;736419Thats not a myth. my mate suffered with it on his Skyline. Bought another XS power turbo (or got it relaced can\'t remember). It was the same, smoking like a ...... Turned out he hadn\'t fitted a restrictor in the oil feed line. Soon as he did it all stopped.

Ade

Ye myth was probably the wrong word to use. I am trying a non branded one (say what you like people I\'m trying it and that\'s that) so did a bit of the usual googling.

Do you know what size restrictor your mate used?

TiddlesRX7 · January 12, 2011, 06:31:20 PM

I can find out. I seem to have 6mm in my head but I\'d have to check. He\'s in South Africa till tomorrow but he is gonna give me a bell when he lands so I will ask him then.

Ade

L18M · January 13, 2011, 01:57:25 AM

i had a look at the turbo today... the compressor wheel and exhaust wheel looked ok. the shaft (rather small but then is a small tub) had a fair bit of wear on it and there was also a sleeve off the turbo that has a fair amount of of dents and looked a bit warped

i only covered about 200 miles off boost with it so no matter what sixe restrictor it has, not going to help

need to find price to get it rebuilt or else look for a bigger tub :p
back to main question, any one got any suggestions?

BlitzBoy · January 13, 2011, 11:54:04 AM

get a different make turbo xspower is not very good, Holset or Borg Warner are good turbos for cheapish money

L18M · January 13, 2011, 12:45:54 PM

Quote from: BlitzBoy;736761get a different make turbo xspower is not very good, Holset or Borg Warner are good turbos for cheapish money

yes, wasnt looking at another xs power tub.
want other ideas of tubs that will / can give good power. :Thumbs-up

Ed_RX7 · January 13, 2011, 02:04:27 PM

T64....P trim..1.00AR....job done.......sits inbetween a t04s and t04r