boosting a GE

[dumbo]

i know there may be a few of these out there but i here i go

what have you guys got away with with boosting a 7M-GE-PSI i mean thanks
mine has decked head, decked block, and new gasket-all unknown dimensions. didn't ask previous owner-shoulda know better. just curious cause i'm starting my pile of parts for the winter NA-T build.

Lots of this XO2 Racing stuff on ebay what re your thoughts. thanks

http://cgi.ebay.ca/7MGTE-MA70-1986-...ryZ33742QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

http://cgi.ebay.ca/50mm-wastegate-S...photoQQcmdZViewItemQQ_trksidZp1742.m153.l1262

 

[webbs7mgte]

If ur running a stock hg don't run more than 6 lbs on that ge motor compresions are to high and a stock turbo is good to about 12 lbs so I've heard and a ebay waste gate is no dice they usually fail and in turn ur going to blo ur motor many people have resorted to swaping now 2j na-t isn't too expensive now a days parts r easy to come by

 

[CRE]

Webbs take some time with your posts... they're almost impossible to read.

People have run as high as 12psi for an extended period on pump gas and a stock HG. I think the longest running N/A-T on here is at 10psi though with a stock HG.

I'm sure you could calculate the CR given the actual compression psi.... or do you not know if it's been bored as well?

 

[Fuzz420]

I hope you plan on using turbo electronics

 

[suprarx7nut]

I hope you plan on using turbo electronics

...or maft pro with s/d on the GE electronics

 

[dumbo]

http://cgi.ebay.ca/7MGTE-MA70-1986-...ryZ33742QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

http://cgi.ebay.ca/50mm-wastegate-S...photoQQcmdZViewItemQQ_trksidZp1742.m153.l1262

anyone other opinions on this X02 stuff??

the cylinders were bottle brush honed, not bored over. and the head gasket is steel-felpro(dont know thickness) i think he said, and studs were re-torqued after a few thoughsand km's got about 7,000kms on rebuild.

gonna go all gte electronics, with a front mount intercooler, prolly upgrade the turbo for fast spooling

thanks

 

[AJ'S 88NA]

^^ Steel Fel-pro?? Didn't know there was one.

 

[iceberg319]

it all depends on the condition of the motor and tuning

FYI, ive been NA-t with turbo electronics,OEM hg.for the past 3-4 years daily driven@13 psi.....no problems yet. (ct26,turboback,vpc....etc)

Well see if my motor holds up to the 61mm i have on the way

i wouldnt run a ebay wastegate either, tial FTW

 

[dumbo]

i was talking to a buddy who boosted at 240sx, he bought two tubular exhaust manifolds, cracked both, then got a cast, bad luck or bad manifolds?? who runs tubular here??

so where can i get a quality 50mm wastegate.

didn't stock 7m-gte come with internal wastegates??

 

[DegreE]

Ebay tubular manifolds will crack.

As far as I know, there are no Tubular manifolds for the CT26.

Yes, the CT26 does have a internal wastegate.