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want bigger turbo for my 86xt but don't kmow what will interchange
Posted 29 December 2003 - 07:07 PM
Posted 29 December 2003 - 07:09 PM
Posted 29 December 2003 - 08:16 PM
Also - you have to realize that a larger turbo is not neccesarily a good thing. It will take longer to spool, and probably give you worse off the line performance. There's a lot more that goes into a proper turbo setup that just "bigger is better". This is why many high performance cars have gone to twin turbo's - one small one, and one larger one - to get the spooling effect more even, and a flatter torque curve.
Posted 30 December 2003 - 01:34 AM
Legacy turbo will bolt directly to the stock crossover pipe. However, it will not bolt to the stock downpipe. It will bolt to a stock WRX downpipe.
A WRX turbo will need a bit of fabrication to get to work. Don't even attempt it unless you have the spider intake. Needs a new flange on the crossover pipe. Needs WRX downpipe.
I've also heard that perhaps the Mitsubishi TD04 will work. But, i haven't played around with that.
Nor have I played around with the others. This is just information I have groomed from many sources.
And remember, bigger isn't always better. Higher PSI isn't always better either. A legacy turbo will push more air at 10psi than a stock turbo will at 10psi. Keep that in mind.
For injectors, not sure about drop-ins... I'd get a spare set (junkyard) and send them to a place in Cali, called RC Engineering. Look them up in google. Probally run about ~$50 an injector to get it flowed, cleaned, maybe then can open them up some. Who knows.
Posted 30 December 2003 - 08:58 AM
it flows way more than the stock sorry excuse for a turbo...the extent of it however has yet to be seen because the thing never really ran right, hopefully that will change by the end of the week. what ive seen so far has been quite impressive, big power increase, more torque, and way more top end...will only get better once the car is tuned.
the mitsu TD05 tex is talking about is a 16G turbocharger found on 93-97 jap spec STIs, and are pretty tough to come by, the ones found on USDM mitsubishis are very different in terms of flanges and bolting it on. the ones we would use can be located on ebay once in a while but are usually priced sky high. also, some mods will be necessary for the coolant pipes. ive heard from people on the legacy central forums that this turbo doesnt produce any better than the VF11 until about 16PSI...and riding around daily with that kind of boost in our cars is crazy, wouldnt be bad on race gas though.
id find a legacy turbo and buy some cheap aftermarket WRX exhaust system off of iclub or ebay...at 15PSI, a full turbo-back and an intercooler, youll probably be touching in on 190-200hp at the crank.
as far as injectors, im clueless...
Posted 30 December 2003 - 11:05 AM
Posted 30 December 2003 - 02:36 PM
if you are close i could help out in that department also i have club members in Alberta / Calgary that know a lot . let me know if you want ?
Posted 30 December 2003 - 02:49 PM
you just pull the exhaust housing off and swap them. there might be a tiny bit of plumbing differences, butnow is a time for an intercooler anyway.
if you have a bigger turbo, and boost the same amount of lbs you will make more hp. more reliable, cooler boost too. and it will spool up the same, because it uses the same exhaust housing.
Posted 30 December 2003 - 03:53 PM
Posted 30 December 2003 - 04:28 PM
Posted 30 December 2003 - 05:39 PM
Posted 30 December 2003 - 07:37 PM
This is of course all very acedemic, and who knows how much it will actually affect the performance - some experiments are in order. Discussion is great, but some charts and graphs of impeller sizes / and exhaust flow rates over time are in order I think....
Posted 03 June 2004 - 09:23 PM
The turbo from a Legacy does not have the same bolt pattern as that of the EA82T. It is similar but not the same. Pipes that are made for one will not just bolt right up to the other. I too have heard of enthusiasts swapping the turbo from a Legacy to their EA82T powers cars. I do not doubt for a minute that the Legacy turbo is a larger, somewhat. However, it is interesting to note that the exducer of the turbine is the same size on both units.
Can somebody please verify!
Posted 03 June 2004 - 09:48 PM
bigger turbos rule! it will lag a bit more, but give you lots MORE COOLER air.
im workin on a high comp lower end, with a legacy turbo, fmic, with stock boost. high comp to get you off the line, and big turbo for power past 3k
and maybe gd learned something since that last post, because a hybrid turbo will spool up lots faster than the larger turbo alone
Posted 03 June 2004 - 10:08 PM
Posted 04 June 2004 - 12:34 AM
Posted 04 June 2004 - 12:38 AM
easy housing swap acutally, now if you could make the hot side wheel fit in our exhaust housing, youd have a hell of a turbo.. seriously..
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