J Posted April 15, 2005 Report Share Posted April 15, 2005 I can get a brand new SAAB turbo for my car for $100 (can't say where, still in factory packaging) would it be worth it? i know it'd need a new flange and all, but would it be enough for a big heavy v6? All input is welcome, thanks all Jay Btw i know it comes from a 4cyl engine! Quote Link to comment Share on other sites More sharing options...
slick Posted April 15, 2005 Report Share Posted April 15, 2005 You need to let us know which turbo, or atleast which engine this is from. Then we can see if it will even work for your car. Quote Link to comment Share on other sites More sharing options...
J Posted April 15, 2005 Author Report Share Posted April 15, 2005 i'll have to call my cousin and give it a look over then. Aren't all the newer turbos on the SAABs the same? I know this turbo is like 3 years old, but new Quote Link to comment Share on other sites More sharing options...
slick Posted April 15, 2005 Report Share Posted April 15, 2005 Different engines may have used different turbos. Find out for sure what year, model of the car, and what engine it came off of. Then we can go from there. Quote Link to comment Share on other sites More sharing options...
Aaron Posted April 15, 2005 Report Share Posted April 15, 2005 First of all don't count on it, it will work, but I bet you'll be so far out of its efficiency range ti isn't even funny, if its able to keep a 3.1 boosted at all. Secondly, it'd be a lot of work to get it on and running, turbo projects are a big deal. Quote Link to comment Share on other sites More sharing options...
J Posted April 15, 2005 Author Report Share Posted April 15, 2005 oh trust me i know, thats what i meant about it being from a 4 cyl Quote Link to comment Share on other sites More sharing options...
slick Posted April 15, 2005 Report Share Posted April 15, 2005 oh trust me i know, thats what i meant about it being from a 4 cyl Turbo Iron Duke. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted April 15, 2005 Report Share Posted April 15, 2005 just because it came off a 4 cylinder doesn't mean shit. i have a Garrett T3 on my 2.2L 4 cylinder and it is MUCH bigger than the T-25 TGP turbo my Cutlass uses. find out the A/R for both the hot and cold sides and go from there. the A/R should be cast into the compressor and turbine housings. personally, i would keep with the stock TGP turbo (assuming you bought that TGP engine). if you want a T3 do your homework (study compressor maps oh what fun ) and maybe go with a T3/T4 hybrid OR a Disco Potato GT28RS (no flange changes there) Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted April 15, 2005 Report Share Posted April 15, 2005 if its able to keep a 3.1 boosted at all so uh, why wouldn't it? please elaborate. Quote Link to comment Share on other sites More sharing options...
Aaron Posted April 15, 2005 Report Share Posted April 15, 2005 if its able to keep a 3.1 boosted at all so uh, why wouldn't it? please elaborate. Well from the factory, most every turbo car comes with an undersized turbo. The TGP is no exception, the turbo can't flow enough air to support the engine past 5,000rpm. So a stock turbo, undersized on a small displacement 4cyl, will not be able to support, or keep boosted, a 3.1 up beyond 4,000rpm, let alone 5-6k. There are certainly exceptions, but for the most part, it won't do it. Also, I am talking about stock turbos off of 4cyls, not bigger aftermarket units. Quote Link to comment Share on other sites More sharing options...
FastSE2DR Posted April 15, 2005 Report Share Posted April 15, 2005 it doesnt matter itll still make boost past whatever rpm it will just drop...either way itll boost his performance and i think thats what hes going for aaron...itll help regardless of the size...and honestly who really studies compressor maps? its not like you are going for a full race setup.. Quote Link to comment Share on other sites More sharing options...
Aaron Posted April 15, 2005 Report Share Posted April 15, 2005 it doesnt matter itll still make boost past whatever rpm it will just drop...either way itll boost his performance and i think thats what hes going for aaron...itll help regardless of the size...and honestly who really studies compressor maps? its not like you are going for a full race setup.. Yah but dropped boost isn't good. Not only is it not making good boost, but since ti is dropping, it is totally out of its efficiency range, meaning you get Eaton-like boost (5 million degrees). But yes, it will boost his performance. And compressor maps should be the first thing studied on ANY setup. I bet you wouldn't guess that a 3.4l needs a substancially bigger blower than a 3.8l, yet when I was plannign my S/C setup, I learned this and a lot more after studying compressor maps for HOURS. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted April 15, 2005 Report Share Posted April 15, 2005 Quote Link to comment Share on other sites More sharing options...
FastSE2DR Posted April 15, 2005 Report Share Posted April 15, 2005 compressor maps are for like engineers and shit...unless your really serious you really dont need em...you can just think about a turbos size and figure out if its gonna work good...just use common sense...i mean yes there is a use but its not exactly neccesary or common knowledge... Quote Link to comment Share on other sites More sharing options...
Aaron Posted April 15, 2005 Report Share Posted April 15, 2005 compressor maps are for like engineers and shit...unless your really serious you really dont need em...you can just think about a turbos size and figure out if its gonna work good...just use common sense...i mean yes there is a use but its not exactly neccesary or common knowledge... So a turbo off of a DSM will work good on a Iron Duke right? I mean they are both 4 cylinders, and within a half liter of each other... Quote Link to comment Share on other sites More sharing options...
J Posted April 15, 2005 Author Report Share Posted April 15, 2005 o jesus let it die. I'll ask on another forum Quote Link to comment Share on other sites More sharing options...
Aaron Posted April 15, 2005 Report Share Posted April 15, 2005 Yes it would be worth it. But I don't see you gaining any more than 50hp. Remember, you will need TGP exhaust manifolds, or custom built ones, and then you will need to run intercooler piping, or just run non-IC, and you'd need to get a TGP chip. A tough project, so I don't know if it'd be worth all the work, but worth the $, yah probably. Quote Link to comment Share on other sites More sharing options...
loominaz34 Posted April 15, 2005 Report Share Posted April 15, 2005 IMHO, It might be a bad idea, a friend of mine got a turbo off an unknown 4 cyl. saab to turbo his 2.2 liter integra and that goes to full boost at like 2000 RPM. Not intercooling your engine with a turbo this small would be suicide. turbos that spin too fast make insane intake heat. that causes knocking and then your engine goes bang. It would be more sensible to just buy one for each bank and MAKE THEM fit Quote Link to comment Share on other sites More sharing options...
Aaron Posted April 15, 2005 Report Share Posted April 15, 2005 IMHO, It might be a bad idea, a friend of mine got a turbo off an unknown 4 cyl. saab to turbo his 2.2 liter integra and that goes to full boost at like 2000 RPM. Not intercooling your engine with a turbo this small would be suicide. turbos that spin too fast make insane intake heat. that causes knocking and then your engine goes bang. That is why I suggest looking at a, *gasp*, compressor map. I agree though. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted April 15, 2005 Report Share Posted April 15, 2005 A tough project, so I don't know if it'd be worth all the work, but worth the $, yah probably. a tough project? it's all completely bolt on considering it's a 3.1 MPFI engine. turbocharging a 3.1 MPFI is cake with used TGP parts available. Quote Link to comment Share on other sites More sharing options...
FastSE2DR Posted April 15, 2005 Report Share Posted April 15, 2005 IMHO, It might be a bad idea, a friend of mine got a turbo off an unknown 4 cyl. saab to turbo his 2.2 liter integra it was swapped i hope? and who runs a turbo without an intercooler and tries to gain performance on regular pump gas? I would never turbo my car without an IC no matter what boost i was running... Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted April 15, 2005 Report Share Posted April 15, 2005 IMHO, It might be a bad idea, a friend of mine got a turbo off an unknown 4 cyl. saab to turbo his 2.2 liter integra and that goes to full boost at like 2000 RPM. Not intercooling your engine with a turbo this small would be suicide. maybe not a bad idea, it all depends on where you want your power. if someone doesn't want turbo lag, then a small turbo might be a good choice for that application so long as they aren't planning on high boost (over 15psi). if you do choose a small turbo, definately intercool it like loominaz34 mentioned. i had a VERY small Mitsu TE04H (EDIT) turbo (smaller than a TGP turbo) on the 2.5L 4cyl in my GTS last year and that thing spooled INSTANTLY (intercooled of course), BUT that turbo isn't good for anything over 15psi because past 15psi you are just cramming HOT air into the engine and asking for trouble. i now have the stock Garrett T3 on my 2.2L, and even though it has more lag, i can boost it past 20psi no problem. why did ASC/McLaren choose a TINY T-25 for a 3.1L V6? no lag! i seriously doubt they studied compressor maps when choosing that turbo....all they wanted was something that spooled instantly. i agree with FastSE2dr that you don't need to go study compressor maps just to find the right turbo for your application....unless you're really into bracket racing or building a dyno queen. i'd be willing to bet that if i used the small T3 from my GTS (.48 A/R turbine, .42 A/R compressor) on my 3.1L, i'd gain ALOT in the upper RPM range.... Quote Link to comment Share on other sites More sharing options...
FastSE2DR Posted April 15, 2005 Report Share Posted April 15, 2005 well said... not too get too off topic what was the td05 you had? Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted April 15, 2005 Report Share Posted April 15, 2005 my bad, i was typing too fast it was a Mitsu TE04H Quote Link to comment Share on other sites More sharing options...
Aaron Posted April 15, 2005 Report Share Posted April 15, 2005 So if the T25 has NO LAG, and falls of after 5,000rpm, why would you go smaller? The thing is already making boost right off idle, there is no reason to go smaller, unless you like the idea of a brick wall at 4,000rpm. Yes the TGP part can all be used, btu that doesn't mean its easy. You will need to find every single piece, exhaust manis, downpipes, charge pipes, I'C, I/C charge pipes, etc. Quote Link to comment Share on other sites More sharing options...
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