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The mkiv Supra Owners Club

N/A Turbo conversion


bibblebob

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Save yourself a lot of hassle and ££ and do a TT engine swap.

 

I took this guys advice. after months of planning and about to order all my bits and bobs from the states and a mapecu2 from oz to 'T' an na. I then counted it all up and with the dip in the iused car market i found that i would actually have spent more getting an na turboed than i would just buying a TT. Even after you've turboed the na it wont drive as good as a stock TT and you'll have to constantly upgrade different bits and pieces in order to take advantage of your single. I went TT and i'm SOOO glad i did.

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Guest SupraN/A96

So what is the price if you wanna do it right?

TT engine-singelturbokit 4 TT engine- new tranny new rear end some kind of fueling control ++++

Is it really that much cheaper i wonder.

 

The US guys have so much good parts for the NA so there is no probs getting 600++ out of the GE engine...heck most of the guys got 350/400+rwhp.

 

I just need a lill bigger turbo and some more fuel on mine and i will break 500+rwhp easy...I made 473rwhp and 447 ft-lbs tourqe at 1.2bar with a boostleak:D

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in this country it is more expensive

 

i doubt that............Norway and cheap don't go together and it can't be any cheaper to get the bits from the states shipped there.......

 

TT's are relatively cheap and not many current NA owners have the funds or inclination for 'that' much BHP and if they are only after TT power levels then (fair enough) they are pointed towards selling and buying a TT.

 

NA-T especially in a later 6 speed NA as is the case here is not necessarily a bad idea IMO

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if you want proper single turbo type power in an na you have to deal with more problems, ignition spike at 4-5k being one and deletion of the dizzy being another or atleast amplifying the stocker. Also lowering compression properly with pistons instead of using gaskets. Then upgrading to a TT style intake manifold. These are very expensive, especially after you pay vat on them.

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if you want proper single turbo type power in an na you have to deal with more problems, ignition spike at 4-5k being one and deletion of the dizzy being another or atleast amplifying the stocker. Also lowering compression properly with pistons instead of using gaskets. Then upgrading to a TT style intake manifold. These are very expensive, especially after you pay vat on them.

 

+400rwhp is proper (small) single power isn't it?

 

The things you mention may be 'proper' and will presumably optimise engine life and power output but they are clearly not necessary to get the power level the Norwegian guy has got.........may be the engine won't last or hold up to much of this who knows...........i do know that if he pushes the engine too far and the worst does happen then he can have another engine for a few hundred quid..........

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400hp is bpu power, i wouldn't drop a shedload of money on my supra to single it if all i wanted was 400hp, i can get that by doing what i'm doing now, sticking in a couple of decats and an FCD. couple hundred quid if you already have a GTE, or ofcourse you could get an na and drop 2 or 3 thousand quid on a turbo kit and you could get the same power, you want get anymore unless you address the problems that i mentioned earlier, you cant go any higher than 8-9 psi on stock fuel and ignition timing on an NA

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if your not to bothered about not having the dump/bov sound have you thought about the 4.0 v8 conversion from thor racing. its what iv got planned for next summer. it costs about £2000 for the conversion, plus the price of getting the engine, which if you buy the whole lexus soarer for about £600 - £800. i was looking into a na-t bolt on and this v8 option comes out alot cheaper and the best thing is it pulls from the line alot quicker then a turbo supra and the v8 sounds great. the soarer engine can take so much extra abuse aswell. when they realsed it they said the car would rot away before you ever had a major engine problem. also nice to do something different. thor racing said when i spoke to them on the phone the other day that they own the only v8 4.0 supra (with a soarer engine in the uk) im praying to be the second. just bear that idea in mind.

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Guest SupraN/A96
400hp is bpu power, i wouldn't drop a shedload of money on my supra to single it if all i wanted was 400hp, i can get that by doing what i'm doing now, sticking in a couple of decats and an FCD. couple hundred quid if you already have a GTE, or ofcourse you could get an na and drop 2 or 3 thousand quid on a turbo kit and you could get the same power, you want get anymore unless you address the problems that i mentioned earlier, you cant go any higher than 8-9 psi on stock fuel and ignition timing on an NA

 

This tread says it all i guess...every one please read:d you can get alot of power from the 2jz-ge.

http://www.supraforums.com/forum/showthread.php?t=505654

 

However i agree that if you just want 300/350rwhp go with the s TT engine swap if you can get a cheap engine:)

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This tread says it all i guess...every one please read:d you can get alot of power from the 2jz-ge.

http://www.supraforums.com/forum/showthread.php?t=505654

 

However i agree that if you just want 300/350rwhp go with the s TT engine swap if you can get a cheap engine:)

 

Yes the 2JZ-GE engine can take a lot of power just ask DaveH.But if you want to single your NA to get the same power as a Singled TT you are throwing money out the window.If all you want is an extra 80-100 bhp the by all means do the NA-T conversion.Each to their own.

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Well thanks for your comments guys, although still in a dilema.

The biggest problem is, i have a realy nice motor mint paint,explosion side skirts,Bride seats etc,etc and there is no way i'm letting this car go,i have spent to much time and money to back off now and get a TT.

So although i have though about the v 8 option its not what i want. I wanted the single because i like the idea off less clutter under the hud.

But i think after reading your comments i think i will go for the TT implant.

So if i can get a good motor what else will i need. The car is a 5 speed manual.:search:

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All very well saying get a TT engine but do you actually know where the engine has come from and what miles are on it? What if it went pop? At least you know your existing engine then some transplant thats come from god knows where. Also if your NA engine went pop they cost next to nothing to replace. If you ever wanted to go single you have the costs of a TT engine then the single turbo parts...

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So if i can get a good motor what else will i need. The car is a 5 speed manual.:search:

 

 

just had a stock TT dropped in my SZ:) id would advise a clutch up grade, i had QSD do mine just under £3,300 all in, i actully like the 5 speed the car shifts, but would like to see how the 6-speed goes

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I would agree and try to do the GTE swap. In the long run you will be much happier. You know the motor will be able to take a ton of power, you can buy all the parts at Toyota, and there is a ton of aftermarket support. Even with just bolt ons (BPU) you will make 400hp all day and it will be very reliable. A GTE motor will be much more reliable than a NA-T in my opinion.

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