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boosting power in a ea82t?
Posted 03 July 2005 - 09:42 PM
Posted 04 July 2005 - 05:21 PM
i'm getting ready to rebuild my egine in my 87 gl10, do to blown head gasket or craked head. i was wonder what i could do to get like 150 or maybe a little more. when she was running i could smoke a wv jetta(talk about an ego killer). i plan on running an inter cooler and fabing up a bigger crosspipe and maybe a strait 2" or 2.5" exhaust. i was thinkg about maybe 2 more psi of boost but i read some where that it had problems if you turn up the boost past stock.
Search in the Older Generation of Subarus Forum for the word 'dyno' in the title. You should come up with some useful information from a guy named Will or 'WJM' as well as others.
Also, type in '1987 RX Turbo at the drags last night ' in the search title in the same forum. There is a guy with an interestnig solution to adding extra fuel that's needed when the boost is turned up.
Posted 06 July 2005 - 09:43 PM
Posted 07 July 2005 - 08:48 AM
should help out a bit
the o-ringing should keep the head gaskets from blowing out unless you go outta your way to do so. im getting my first engine completely worked over by a shop that builds race winning engines.
Posted 11 July 2005 - 07:54 PM
Posted 11 July 2005 - 10:24 PM
Posted 16 July 2005 - 08:50 PM
The 3 angle valve job is VERY important and often overlooked. The most flow through the valves actually happens at LOW lift for a very short time. The 3 angle, if done properly, increases this flow at low lift. This makes torque. Don't be sold on a 5 angle valve job unless you plan on freshening up the heads after every other race. The 3 angle gives great performance with good longevity.
Posted 17 July 2005 - 12:16 AM
Posted 17 July 2005 - 08:24 AM
Posted 28 August 2005 - 08:31 PM
on a stock engine, stock turbo, stock internals, stock ECU...just a header/downpipe/intercooler/intake and a boost controller@15 PSI...I was able to extract 240hp and 320tq out of it. NOT safe by any means as it runs lean....but REALIABLY with the boost at 12 PSI its making roughly 180/240 at the crank. Ive put over 20k miles on that setup (originally the engine had over 150k miles on it) with no problems. JWX now has that engine and its still running strong.
So in my armchair theoretical mode that means this list of do-dad's I'm fixin-ta be finished with oughtta push closer to 180hp/240ftlb? WOWsers.... I was only figuring about 45hp gain....
with the new set of heads(valves ground either 2 or 3 angles/sided not sure now(they were built for me some 3+ yrs ago)) new seals,oil and H2O pumps, spider intake, 2.5" exhaust from turbo-back w/2.5 in/out 3-way cat, turbosonic flow thru muffler; XT6 flywheel and new XT6 OEM clutch kit, either cut way open OEM airfilter or a cone (very soon), once its driven for a little while then I'll ut the man. boost controller back on and set it about 12-13PSI for the rest of this ole girl is stock materials. Oh; ummm and a mess of Moly-B grease on pieces and a Qt of lucas oil added to the mix. (cheesy grin)
(sits back and watchs the xmas tree to see who launches first. (pun inforced)
Posted 28 August 2005 - 09:50 PM
Posted 29 August 2005 - 12:30 AM
it will also help to get a cone filter and larger intercooler piping. you might want to consider running the turbo off of a WRX (TD04). you can run more boost out of it. i'm pretty sure its safe to run 12psi on the stock internals?
bigger isnt always better. a td04 isnt too bad in this case, but it wouldnt hurt to reinforce the bottom end to account for the higher flow this turbo can push over the stock rbh5/vf7/wtfitscalled. also, larger dia. IC piping will lead to more turbo lag because theres more volume that needs to be pressurized.
Posted 29 August 2005 - 09:08 AM
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