supraspeed Posted June 5, 2007 Share Posted June 5, 2007 Anyone know the difference between the tt engine and the na engine spec wise? Quote Link to comment Share on other sites More sharing options...
Nic Posted June 5, 2007 Share Posted June 5, 2007 Anyone know the difference between the tt engine and the na engine spec wise? Can you be more specific, do you mean in terms of power or differences in the actual parts? Quote Link to comment Share on other sites More sharing options...
supraspeed Posted June 5, 2007 Author Share Posted June 5, 2007 well the power, i heard somewhere two different engines were used but i mainly mean bhp between the two Quote Link to comment Share on other sites More sharing options...
Nic Posted June 5, 2007 Share Posted June 5, 2007 well the power, i heard somewhere two different engines were used but i mainly mean bhp between the two NA from the factory around 220(ish) hp TT from the factory around 320(ish) hp The TT is a lot more tuneable, for a relatively small amount of money it is possible to get around 380-400hp. The NA you'll get perhaps 20hp extra for similar money. I'd suggest test driving both and see the difference for yourself before buying. Quote Link to comment Share on other sites More sharing options...
supraspeed Posted June 5, 2007 Author Share Posted June 5, 2007 cheers. obviously the turbo's give the engine a lot more power so i take it the tt engine is like an upgrade of the na one then before turbo's were added? Quote Link to comment Share on other sites More sharing options...
Matt H Posted June 5, 2007 Share Posted June 5, 2007 cheers. obviously the turbo's give the engine a lot more power so i take it the tt engine is like an upgrade of the na one then before turbo's were added? Its the same engine, in simple terms the TT has added turbos Quote Link to comment Share on other sites More sharing options...
Guigsy Posted June 5, 2007 Share Posted June 5, 2007 Its the same engine, in simple terms the TT has added turbos not QUITE true... i know for a fact my engine bay looks different. for instance that thing (dunno what its called) after the air intake that goes over the top of the engine... isnt there on a turbo. also the distributer ( i think) is in a different place.) and the covers on the top of the engine are different... but inside i guess its the same if u strip it down far enough. Slso filler bottles and god knows what else are in different places. I dont think its a case of bolting a couple of tubbys onto an N/A and uve got a TT TT engine bay (thanks rob) N/A engine bay (mine) TT -> Single engine bay (thanks homer) Soz but i cant fix the links to make them into pics Quote Link to comment Share on other sites More sharing options...
Pot Posted June 5, 2007 Share Posted June 5, 2007 All I'll say if if you have a choice between a manual NA and an auto TT is make sure you thoroughly read everything you can on here... Not that I hate my car, I love it lots in fact, I do regret the fact I bought it before coming on here, I dissed the auto as an everyday sh!tty auto, so headed straight for the manual NA... Nowadays I read that the auto box is really rather good (Still not as good for me as a 6-Speed TT (Or Single)), and that very well could have swayed me over to the TT side... I find myself wishing for more power now, which with an NA isn't really an option Quote Link to comment Share on other sites More sharing options...
Homer Posted June 5, 2007 Share Posted June 5, 2007 They share the same block (though the GTE one has extra holes for the oil lines). The pistons are different (GE is high compression, GTE, low compression). The head is different, with different cams and valve sizes. The intake manifold and most of the 'bolt-on' is fundamentally different. It's not just the engine either, the TT drivetrain has stonger components (aside from the late model 6spd NA's). Quote Link to comment Share on other sites More sharing options...
turbonut Posted June 5, 2007 Share Posted June 5, 2007 hi fellah Welcome to the forum Have a look at these guides on our home page: http://www.mkivsupra.net/vbb/showthread.php?t=59334 They will answer a lot of your questions and set you in the right direction, good luck!! Linda x Quote Link to comment Share on other sites More sharing options...
Pot Posted June 5, 2007 Share Posted June 5, 2007 (aside from the late model 6spd NA's). Homer you legend, I didn't know they made 6sp NA's... Now I'm wondering if those parts will be cheaper, if they're from an NA? (Strange logic, but I hope you can see where I'm coming from)... Quote Link to comment Share on other sites More sharing options...
Homer Posted June 5, 2007 Share Posted June 5, 2007 Homer you legend, I didn't know they made 6sp NA's... Now I'm wondering if those parts will be cheaper, if they're from an NA? (Strange logic, but I hope you can see where I'm coming from)... They won't be any cheaper as it's the same kit as you get in the TT 6spd The're pretty darn rare. I drove How_supra's one, very smooth it was too Quote Link to comment Share on other sites More sharing options...
supraspeed Posted June 5, 2007 Author Share Posted June 5, 2007 cheers for the info guys Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 5, 2007 Share Posted June 5, 2007 DO they share the same block casting though??? I am now at the stage with Skyline engines that I take little as gospel and tend to do my own research. I have just bandsawed a GTR head in two across the guides and ports, and am about to do the same with a GTS-t head. I suspect they will be very different, water passage as well as port wise. If someone has the time and inclination to donate a scrap N/A and TT block I will bandsaw them in several bits and see if they REALLY are similar castings. A dead easy first step it to weigh two bare blocks, accurately. If the TT block is heavier it almost certainly has thicker bore walls, maybe a thicker top deck... The casting numbers are quite different, I suspect internally they are different, too. Two repected Skyline tuners take all of a "knobble" out of the ports to aid flow, I have already found that port wall integrity is severely compromised by this, as said "knobble" is a bit of casting that gives strength to a water passage around the exhaust valve guides. Quote Link to comment Share on other sites More sharing options...
Scooter Posted June 5, 2007 Share Posted June 5, 2007 Well i have a scrap (well been quoted £800+ to fix the hole in it!) TT block and a stripped bare NA block. Could weigh them but probably only on a bathroom type scales. Other than the obvious lack of certain machined parts on the NA block they seem the same......... I'll try and have a detailed look some time soon......... Quote Link to comment Share on other sites More sharing options...
Pot Posted June 5, 2007 Share Posted June 5, 2007 They won't be any cheaper as it's the same kit as you get in the TT 6spd The're pretty darn rare. I drove How_supra's one, very smooth it was too No worries, it was worth a thought... Did you save the tissues?... Quote Link to comment Share on other sites More sharing options...
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