Possible to TT a NA engine?

[fairladyzj]

I know alot of peoople say you can only do the TT swap or just buy a TT.
Its not possible to upgrade the ecu to TT, bolt on turbos, and any other installments a TT requires?

[car nut]

I dunno, is it possible to search? This has been covered thousands of times.

[fairladyzj]

i dunno what this meant....

"I know alot of peoople say you can only do the TT swap or just buy a TT"

[NORCAL300ZX916]

the question is why would u want to?

[NolimitZ32]

i dunno what this meant....

"I know alot of peoople say you can only do the TT swap or just buy a TT"

1) been covered plenty of times,
2) yes its possible
3) if you wanna do that just give me the extra money your gonna end up spending and I'll find you a TT to buy

[NORCAL300ZX916]

i know matt poole from mattzgarage/drivenauthority is in the process of making a single turbo kit for the na.he is currently making one for his car around 800 hp and is going to scale it down to the 350/ 400 range to make it more reliable and sell. i was talking to him yesterday about it he expects it to cost around 3k. he is also going to make it simple to install w/o pulling the motor. im excited to see how it turns out but the price tag is still pretty steep, but considering everything is included in the kit not too bad.

[vulcanrush]

ok, the single-turbo kit is nice, but wouldn't you need a lot more?

what about intercoolers? upgraded radiator and oil cooler for cooling, bigger injectors since you'll need more fuel, what about ecu?

it'd be nice for it to be as simple as buying a 3k turbo kit, but i don't think it works out like that.

i think the na small-block is the same as a tt (same rods and crankshaft, and iron-block for both), but the pistons are different and the compression is higher, 10.5:1 instead of 8.5:1.

i don't know of any single-turbo kit that produces 800hp then is detuned to 350-400hp.

[NORCAL300ZX916]

its comes with all the intercoolers and all that crap. i did ask about the compression he said it would be stock(10.5 to1) and lower boost he said his main concern was heat and he was gonna run a much larger turbo on his. matt knows his zs man i didnt get every detail but he is the only guy in my area that has a shop specializing in z's particularly z32s.

[vulcanrush]

i'm sure matt does know his stuff, certainly he knows more than i do, i'm just an amateur.

but considering most turbo packs go for 2,500 or so, i just think it's unrealistic that for 3k, it comes with intercoolers and all that stuff.

intercoolers are around 400-500 for the z1's? piping's, used, are 200-300...and upgraded radiator (koyo or howe) is another 300-400.

[NORCAL300ZX916]

the man told me 3k for the kit i mean why would he lie and thats just paying for the name on z1 how much do you think that crap costs to make probably like 20-50 bucks?

[vulcanrush]

whoa, whoa, i didn't mean to offend you.

i didn't mean to say anyone is lying.

who knows, perhaps it is a great deal, if that's the case, fantastic.

i'm just saying, it sounds unrealistic. usually a turbo "kit" doesn't include intercoolers or piping's or the radiator/oil cooler and all the other stuff you wanna get to go tt. the "kit" includes the turbo's, gaskets, maybe some lines and that's it.

that's all i'm saying. if you'd like to go ahead and buy it and see how it is, please do, and let me know how it is.

i just think cutting corners when it comes to a tt swap doesn't make a lot of sense. to do a tt swap, i would think 10k+ is a good budget.

[NORCAL300ZX916]

i wasnt gettin snippy or maybe i was. either way no offense taken ha...we good bro we good lol

[evildky]

does anyone bother with the search function?

[ghostowl79]

i'm a noob when it come to z32. vulcanrush can you tell me how you come up with 10k to do the na to tt swap. i have check some site that sell jdm engines ant the tt with trany range from 1100 to 2500. i figer 1000 for install and a another 1500 for misclanes party like waterpump etc. what m i miss?

[vulcanrush]

i'm a noob when it come to z32. vulcanrush can you tell me how you come up with 10k to do the na to tt swap. i have check some site that sell jdm engines ant the tt with trany range from 1100 to 2500. i figer 1000 for install and a another 1500 for misclanes party like waterpump etc. what m i miss?

i'm a noob also.

i've heard some not so flattering things about jdm engines --- they're pretty beat-up, etc.

the installation is usually somewhere from 3-5k. unless you know someone who is knowledgeable and is willing to cut you some slack.

let's say you go the jdm route, the engine/trans combo is 2k on average? you can find one for cheaper, but let's just say on average.

120k pack (timing belts, etc.) is about 500-600, gaskets (300), efi (300-400), oil pan and pump (300-350) since jdm engines sit on them and dent them.

you probably want to update the turbo's, 2k? new injectors, 800? intercoolers and piping's, 1k? ecu if it doesn't come with one, another 400? boost device is another 300-500? you're already at 8k+? there are some miscellaneous things you'll wanna do, you might consider them optional, but i think they're pretty cool.

sz dp's, another 500-600? upgraded radiator, 400? it adds up, this car will drain your money!!!

and when you get the performance bug, 3'' exhausts, better turbo's, brakes, jdm tailights, j-spec front bumper, etc.

[ghostowl79]

wow that does add up. i thought it be like a 240sx swap does only run like 6k. when you put it that way it sounds more reasonable to send the car to Z1motorsports. there would only cost like 9k plus the ship of the car .

[labcoatmonkey]

idk but TT swaps usually cost 2K. Timing belt and clutch is another 1K so 3 thousand dollhairs for a TT swap, why 6? for an sr redtop? NO whaaaay man! 240 sx should be cheaper to work on anyway.

[vulcanrush]

wow that does add up. i thought it be like a 240sx swap does only run like 6k. when you put it that way it sounds more reasonable to send the car to Z1motorsports. there would only cost like 9k plus the ship of the car .

i don't get it, to mail the car to z1, and back, would be over 10k+.

and they wouldn't do anywhere the maintenance that's listed.

[Ghut300zx]

I have a really good condition engine, low miles, great service history ect. Would it be cost effective to pull the engine apart and swap in TT crank piston/rod assembly and just throw on TT heads manifolds ect? or is the NA block impossible to use for a TT?

[Ghut300zx]

because i thought the block was the same

[ghostowl79]

to answer labcoatmonkey. yes a sr20det in to a s13 would cost like 4k but thats not going to be a reliable car just like spending the same amount on a na to tt swap. the debate is for a relaible car. now my cost are if someone else did the work no shortcuts or hook ups. pretty much retail.

[car nut]

I have a really good condition engine, low miles, great service history ect. Would it be cost effective to pull the engine apart and swap in TT crank piston/rod assembly and just throw on TT heads manifolds ect? or is the NA block impossible to use for a TT?

Only difference between NA and TT motors are:

-Pistons
-Ports on heads
-Cams
-NA blocks have oil passages to turbos blocked off

No, it isn't worth it. The only thing you would be keeping are your block, crank, rods and plenum (all of which happen to be the most durable parts of a VG30DE). Everything else is different, and you would need to buy all those parts.

[Ghut300zx]

but cheaper i would imagine if your going to be building a TT motor anyways correct?

[car nut]

No, cause you would need more parts. It would be more expensive then just a regular swap, and even more expensive then buying a TT.

[vulcanrush]

I have a really good condition engine, low miles, great service history ect. Would it be cost effective to pull the engine apart and swap in TT crank piston/rod assembly and just throw on TT heads manifolds ect? or is the NA block impossible to use for a TT?

Only difference between NA and TT motors are:

-Pistons
-Ports on heads
-Cams
-NA blocks have oil passages to turbos blocked off

No, it isn't worth it. The only thing you would be keeping are your block, crank, rods and plenum (all of which happen to be the most durable parts of a VG30DE). Everything else is different, and you would need to buy all those parts.

hey car_nut, early-style na and tt heads were the same, right?

[car nut]

I think they have the same dimensions, bolt holes, passages etc., they just have bigger intake/exhaust ports and a different cam. You could update an NA head to TT specs, but it wouldn't be worth it for the money.

[es.biggs]

TT heads are direct bolt on as long as the same generation VG30DE is used. 90-93 are interchangeable, then the engine was modified slightly for 94-95, then again in 96.

Only difference in the heads is the exhaust valves are made of a stronger alloy, and the heads flow better because of different intake and exhaust porting.

Also, all intake and exhaust cams are the interchangeable (from the same generation engine), NA and TT, with one exception. Automatic TTs have different intake cams with lower lift, in order to lower the HP (extend transmission life) for that model.

TT blocks also have different oil squirters.

Don't mean to knock on you carnut, just wanted to straighten out a few things

Good info on the topic: http://www.300zxclub.com/showthread.php?t=158597
Post #12 has some great comparison information NA vs. TT, written by someone from Z1.

[car nut]

Hmm, interesting that the cam specs are the same. The motors really are sooooooo similar.

(the TT block has the same oil squirters, they're just pointed in a different direction )

I didn't realize the heads were modified (besides the obvious '96 model). And I trust you know what you're talking about after all that s*** you went through with your heads. Sorry to hear you're not gonna be able to fix them for awhile.

[es.biggs]

Hahaha touche

Ya it's really the lower intake manifold that changed, so the new ish style heads won't fit with the old lower intake mani, and vise versa.

I'm selling my TT heads I don't want to deal with swapping the heads out of this thing. I'm just gonna buy a CAS's and change them out whenever they get chewed up, and at some point I hope to do a TT swap