Guest spezer Posted February 20, 2008 Share Posted February 20, 2008 Hi Chaps, I'm considering buying a 2JZGE model and putting a 1JZGTE engine in for turbo fun.... What's the thoughts on this? Quote Link to comment Share on other sites More sharing options...
madmunky Posted February 20, 2008 Share Posted February 20, 2008 why not just got for a TT conversion? Quote Link to comment Share on other sites More sharing options...
Guest spezer Posted February 20, 2008 Share Posted February 20, 2008 costs mainly... can get a 1jz for less than £400 Quote Link to comment Share on other sites More sharing options...
miko_supra Posted February 21, 2008 Share Posted February 21, 2008 here you go this might help you... NA-T Pros: -You already have the engine -If you blow it up you can find a replacement longblock for 300-400 easily and parts everywhere. -The non-vvti bottom end with a headgasket to lower compression can easily handle 700+ rwhp RELIABLY. -For around 2 grand possibly less if you take the time to piece everything to you can have a nice NA-T setup and already be single turbo, rather than doing a swap and still having to convert to single turbo later down the road. -If you already have turbo and car experience you can do this in a weekend. Cons: -Distributor gets in the way with larger turbos on some manifolds. -Intake manifold sits on top of the engine -Stock compression is really high and must be lowered to run higher boost 10:1 -Large spike of timing advance at around 4500rpms. -Stock fuel is limited by 330cc injectors, however u can find 440's and a LS400 MAF relatively cheap 1JZ-GTE swap Pros: -Smooth powerband and power delivery with the stock twins -7500rpm redline -Speed density (no MAF) -Coil on plug -Cheaper, however, with the price drop in NA-T kits this isn't always true especially if you have to pay a lot for shipping. Cons: -Replacement parts are harder to find -Uncertainty regarding the condition of an imported engine -Aftermarket parts can be hard to find, however this is changing. -Less displacement as a 2jz. -Stock twins limit you to low 300rwhp? -Becuase its a swap youre going to run into a lot more problems you didn't expect. 2JZ-GTE swap Pros: -Oil squirters on the pistons. This isn't really that big of a deal though and no NA-T people have ever complained about lack of oil squirters. -Lower compression stock -Larger aftermarket. (same as Supra TT) -Coil on plug Cons: -Engine is MUCH more expensive and for the extras you get, not necessarily worth it. You can swap fully turbo a GE for the amount you would spend to swap a GTE. - this is from and american website, this is not true over here Quote Link to comment Share on other sites More sharing options...
miko_supra Posted February 21, 2008 Share Posted February 21, 2008 allot of people do whats called a 1.5jz-gte.... 1.5JZ-GTE The 1.5JZ is not a production engine but is created by combining a 1JZ with a 2JZ bottom end. The 2JZ bottom end will simply bolt onto the 1JZ cylinder head. * 1JZ = 2.5L Inline 6 (86.0mm bore x 71.5mm stroke) * 2JZ = 3.0L Inline 6 (86.0mm bore x 86.0mm stroke) Using a 2JZ bottom end with the 1JZ components allows an extra 500cc of displacement. Reasons for this conversion is a matter of opinion and discussion. Some claim a 1JZ head flows better than a 2JZ, however this is unfounded as of yet. What is known is that the 2JZ head compared to the 1JZ head has more restriction in the 5th and 6th cylinder exhaust ports due to an S shaped casting. The 1JZ also has different shaped combustion chambers which, when directly placed on a 2JZ block, increases the compression slightly and leads to a power increase when using unworked heads. Once worked (ported and chambers reshaped, valves resized) the heads have been proven to flow much the same. The most likely reason for the setup would be if the owner of a worked 1JZ engine suffered from bottom end failure or if they wanted the extra displacement and torque of the 2JZ bottom end, as the heads are interchangeable. Quote Link to comment Share on other sites More sharing options...
couv3z Posted February 21, 2008 Share Posted February 21, 2008 here you go this might help you... NA-T -For around 2 grand possibly less if you take the time to piece everything to you can have a nice NA-T setup and already be single turbo, rather than doing a swap and still having to convert to single turbo later down the road. really? Quote Link to comment Share on other sites More sharing options...
The Raven Posted February 21, 2008 Share Posted February 21, 2008 Hasnt then this been done on that write off on ebay? the contact hitler one? Quote Link to comment Share on other sites More sharing options...
miko_supra Posted February 21, 2008 Share Posted February 21, 2008 here you go this might help you... NA-T -For around 2 grand possibly less if you take the time to piece everything to you can have a nice NA-T setup and already be single turbo, rather than doing a swap and still having to convert to single turbo later down the road. really? american figures you see Quote Link to comment Share on other sites More sharing options...
garethr Posted February 21, 2008 Share Posted February 21, 2008 1.5JZ The most likely reason for the setup would be if the owner of a worked 1JZ engine suffered from bottom end failure or if they wanted the extra displacement and torque of the 2JZ bottom end, as the heads are interchangeable.Agreed... the only reason I can see for a 1.5JZ is that you already have a 1JZ with a single conversion and you don't want to buy all the kit a second time. Especially since a slight mod is needed to match the oilways on the 1JZ head and the 2JZ block. Quote Link to comment Share on other sites More sharing options...
Guest spezer Posted February 21, 2008 Share Posted February 21, 2008 Hasnt then this been done on that write off on ebay? the contact hitler one? Saw that one, but no-one ever replied to my messages to find out what the whole thing was... It sold as a buy-it-now... I was watching!! Quote Link to comment Share on other sites More sharing options...
Guest spezer Posted February 21, 2008 Share Posted February 21, 2008 what size gasket is required to lower the compression and do you just need a 1JZ or 2JZ T head/ancilleries to make the "basic" engine change. Quote Link to comment Share on other sites More sharing options...
Guest spezer Posted February 21, 2008 Share Posted February 21, 2008 whats the highest bhp on a standard NA then? Quote Link to comment Share on other sites More sharing options...
couv3z Posted February 21, 2008 Share Posted February 21, 2008 whats the highest bhp on a standard NA then? err not alot thing someone got 250. with out a turbo or any Major mobs Quote Link to comment Share on other sites More sharing options...
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