ccfab

well guys, i am trying to make 400whp for under 1500 dollars. so far im almost done and have spent not even a thousand.

i picked up amint borg warner ihi gm-8 last night with no shaft play for 30 bucks from a guy who doesnt know much about turbos bviously. my question is, when aprox. will this beast spool. ive had a sc61 and 60 trim on my gsr and am wondering if this turbo will display simila traits.

plans for motor are 20-25 psi

obd1 b16a filled block longblock - 400 bucks
.10 over srp pistons - 200 bucks
eagle rods traded for them
b.w gm-8 30 bucks
dsm bov freebie
til 38mm traded for

so yeah, its coming together nicely

motor is all there just needs to be assmbled.
just looking to see if anyone has any experience running one of these.

thanks

ccfab

anyone??

Jockobo

i have one of those...have yet to put it on and its pretty hard to find info about it anywhere...i would like some info too

bubs

I have a borg-warner gm-5, but I'm not sure how it compares to the gm-8. Mine has a .63 a/r compressor and .70 a/r turbine and starts building boost at about 2800-3000 on my h22. It has worked well for me so far.

ccfab

i know the gm-4 and gm-5 are earlier versions of the gm-8

the gm-8 is the latest version of the turbo used on the 6.5l chevy diesels. i couldnt find specs though.

i know its a .70 compressor, but i was unsure on the .ex housing a/r.. any ideas what type of hp they will support?

a 3k spool on a h22a will net me prob 4500 to 5k spool on a built b16a... thats acceptable

bubs

I had my numbers way off on the a/r for the gm-5 it's a .70 compressor and a .60 turbine. I was trying to go off memory

Not sure, but I would think that the gm-8 might be able to support up to 475-500hp? I know that mine keeps pulling hard till red-line.

I bought mine from this website: http://blaastperformance.com/. The guy that I ordered from seemed to know quite a bit about the borg's, so you might be able to email him and see if he has any information on it.

ccfab

lil pc of it on the turbo mani i made......

Jockobo

have you figured out the downpipe side? im still at a lost there...

stealthmode62

ccfab?

Spending money on honda's is worthless, Josh.

bubs

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jockobo &raquo;</TD></TR><TR><TD CLASS="quote">have you figured out the downpipe side? im still at a lost there...</TD></TR></TABLE>

The website I listed above sells the 4 bolt flanges that fit them.

Jockobo

cool...never seen anybody make flanges for it what about the wastegate section...does that flange protrude in a little to cover it completely??? i notice it sticks in a little...


Modified by Jockobo at 2:21 PM 9/29/2005

bubs

The flanges are flat. You'll probably want to take it to a machine shop to have the outer edge machined down to match the height of the WG hole.

Edit: I meant take the turbine housing to the machine shop and have it machined down so it's level with the WG hole.


Modified by bubs at 3:37 PM 9/29/2005

D-t

400whp for 1500 bucks. NIICE

Good Luck Hrex

Jockobo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bubs &raquo;</TD></TR><TR><TD CLASS="quote">The flanges are flat. You'll probably want to take it to a machine shop to have the outer edge machined down to match the height of the WG hole.</TD></TR></TABLE>

oic...good find though...the only other place that had that style flange was selling it for 75 bucks im gonna take that picture off now cause its too big...

Joseph Davis

Sup, hotsex.

Old GTP38's on the earlier Chebby diesels were good for 450 whp. I'm sure that pile of crap is commeasurate.

ccfab

why buy anything when you have the tools and skill to make it urself. im filling the wg hole and making a external blockoff flange myself.

having a plasma cutter makes everything easy.

redzcstandardhatch

does that thing have a regular T3 flange?

ccfab

yes