300ZX (Z31) Forums Dedicated to 84-89 ZCars otherwize known as the Z31's

1990 twin turbo motor/tranny 6speed swap into 87 automatic non turbo z

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Old Oct 18, 2007 | 12:42 PM
  #51  
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no shop is going to have all the custom stuff you need. you need to make it yourself. if you can't do that, you can't do the swap. i must reiterate, THESE CARS ARE NOT HONDAS, nor are they like muscle cars. you don't just drop in the engine and fire it up. you are setting yourself up for failure.


Also, please try and use proper punctuation and sentence structure. huge run on sentences are annoying to try and decipher.

Last edited by entropy31; Oct 18, 2007 at 12:44 PM.
Old Oct 18, 2007 | 12:45 PM
  #52  
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will the VG30DETT bolt right into a 350Z?
Old Oct 18, 2007 | 12:48 PM
  #53  
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Originally Posted by Bleach
will the VG30DETT bolt right into a 350Z?
why would you put a VG in a 350?? an L series motor is the better choice, and will bolt right up! i suggest the L20.
Old Oct 18, 2007 | 12:52 PM
  #54  
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VG would power those 350's better though.... i like that idea.
Old Oct 18, 2007 | 01:01 PM
  #55  
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a VQ is a better engine but needs the compression dropped a bit for forced induction. They dont have the bennefit of the steel block but they wouldn't need it with lower compression and proper fuel management.

but seriously, I think I'm going with the CA18DET. That's a good engine. Light weight and better weight distribution. 48% front, 52% rear
Old Oct 18, 2007 | 01:08 PM
  #56  
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vq is a great block but it needs to be beefed up...all aluminum block cannot withstand a cast iron block when it comes to forced induction.
Old Oct 18, 2007 | 01:38 PM
  #57  
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lmao, VQ better than the VG. go post that in the Z32 section bleach. lol. it was designed lighter, thats it. beyond that its not a strong motor.they got alot of juice out of it being an NA V6 but thats about it, its not a better engine. VG30DETT FTW
Old Oct 18, 2007 | 01:39 PM
  #58  
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Originally Posted by b300z
stock TT should be around 260whp. i havent seen any ""lightly modified" n/as over 220 whp. theyve all required cams to get them over.
arent cams considered bolt one?
Old Oct 18, 2007 | 03:12 PM
  #59  
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Originally Posted by snwbrderphat540
lmao, VQ better than the VG. go post that in the Z32 section bleach. lol. it was designed lighter, thats it. beyond that its not a strong motor.they got alot of juice out of it being an NA V6 but thats about it, its not a better engine. VG30DETT FTW
so the only way to get over 300hp out of a VG is by forced induction.... interesting

yes, the sleeves in a VQ aren't made for over 800hp but there are plenty of VQ's running twin turbos and putting down 500-600whp on daily drivers. Not even a 'lot' of people with a 300ZX TT do that just because of cost. Z32 drivers like to point out a VQ doesn't hold 900hp. I seriously doubt 1% of those people have the funds to push 900hp out of their engines. Its just easy to put down someone else's car online when you can't afford one.

VQ has far more technology in it than just being lighter. The VG30DE is basically a larger Pulsar engine. The strength of the block is not the only way to judge an engine. By those standards only an L20b is better than a VQ...
Old Oct 18, 2007 | 07:39 PM
  #60  
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Originally Posted by hoov100
arent cams considered bolt one?
i personally dont consider it a "bolt on," but i sure as hell wouldnt call it a light modification.
Old Oct 18, 2007 | 07:44 PM
  #61  
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actually without a real low comp rebuild on a VQ ive seen no dailies over 500hp, and many destruction videos. they dont hold well to boost, and other than a V8 or bigger how many other motors can get any really respectable numbers? yeah, exactly... that was a bad point to make, but its ok, i still like you, even if you did turn to the 350 side.... aka the dark side.
Old Oct 18, 2007 | 08:22 PM
  #62  
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unless your doing a timing belt job, then it wouldnt be so bad..
Old Oct 18, 2007 | 08:56 PM
  #63  
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just in the short time I've owned one, I went to a meet. One guy brought his G35 TT with a dyno sheet. 558rwhp. Its his daily.
That's how we do it on the west side.
I'm keeping mine stock though. 250whp is enough for now
Seeing a couple videos on youtube doesn't give you an idea of how they blew. Some kid can bolt on a $5000 turbo kit and not change the ECU. Then his dad gets stuck with the car payment on a three fiddy with a blown motor.
Old Oct 18, 2007 | 09:05 PM
  #64  
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Originally Posted by Bleach
so the only way to get over 300hp out of a VG is by forced induction.... interesting

yes, the sleeves in a VQ aren't made for over 800hp but there are plenty of VQ's running twin turbos and putting down 500-600whp on daily drivers. Not even a 'lot' of people with a 300ZX TT do that just because of cost. Z32 drivers like to point out a VQ doesn't hold 900hp. I seriously doubt 1% of those people have the funds to push 900hp out of their engines. Its just easy to put down someone else's car online when you can't afford one.

VQ has far more technology in it than just being lighter. The VG30DE is basically a larger Pulsar engine. The strength of the block is not the only way to judge an engine. By those standards only an L20b is better than a VQ...
There are far more TT's pushing 500-600 WHP than there are Z33's; and far fewer stories of motor bombs fro Z32TT's than Z33 TT's.. For the most part Bleach, I respect what you have to say, but you're off your rocker on this one.


And Johnson....this ain't gonna happen....you're in over your head....big time.
Old Oct 23, 2007 | 09:38 AM
  #65  
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i got all the info i need...
now for tha parts.......
1. twin turbo intercooler front mount,
2. two z31 single turbo pipping,
3. two flanges for the blow offs,
4. one blow off valve
4. get drive shaft cut and balanced,
5. get motor mount off z32 welded and bolted in z31,
6. get wiring harness off ebay, or use what i got...
7. get two manual turbo timers,
8. get jdm ecu,
9. connect z31 tranny brase and z32 brase togeather(custom)
10. cut fire walls out of z31, and get the master clutch and brake booster w/ master cylinder and all cables and off the z32 and bolt on...
11.get 4 wheel spacers 279.00
Old Oct 23, 2007 | 09:42 AM
  #66  
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Originally Posted by johnsonsz31tt
7. get two manual turbo timers,
Why do you need 2 turbo timers?
Old Oct 23, 2007 | 10:03 AM
  #67  
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that doesnt sound like all youll need. either way, thats like 3k in labor and parts right there. and you dont need any turbo timer, wait with you car 3 minutes and turn it off yourself. also, why a jdm ecu??
Old Oct 23, 2007 | 10:07 AM
  #68  
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FMICs suck on the VG30DETT.

why do you need a JDM ecu?? there is absolutely no benefit. none.

blowoff valves are not needed on the VG30DETT. it has stock recirculation valves. they are the better choice, unless you want the ricer sound.

wheel spacers suck and are dangerous. get wheels that fit.
Old Oct 23, 2007 | 11:00 AM
  #69  
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ahh yeah, thats the otehr tihng i wanted to point out, the FMIC thing, only problem is, how will he get SMIC's to work on a Z31.... if he gets it installed.
Old Oct 23, 2007 | 11:31 AM
  #70  
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5-lug RWD wheels are actually pretty easy to find these days. Its the 4-lug Z's that usually resort to wheel adaptors.

Drop an SR in there!
Old Oct 23, 2007 | 01:55 PM
  #71  
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Originally Posted by johnsonsz31tt
i got all the info i need...
now for tha parts.......
1. twin turbo intercooler front mount,
2. two z31 single turbo pipping,
3. two flanges for the blow offs,
4. one blow off valve
4. get drive shaft cut and balanced,
5. get motor mount off z32 welded and bolted in z31,
6. get wiring harness off ebay, or use what i got...
7. get two manual turbo timers,
8. get jdm ecu,
9. connect z31 tranny brase and z32 brase togeather(custom)
10. cut fire walls out of z31, and get the master clutch and brake booster w/ master cylinder and all cables and off the z32 and bolt on...
11.get 4 wheel spacers 279.00
How in the hell are you going to hook twin turbo intercoolers up to single turbo piping?
What good is one blow off valve on a twin turbo car?
Why do you think you need to cut the firewall?
What do spacers have to do with your twin turbo project?

HOLY CRAP! You haven't got a clue what you're doing. I expect this project of yours (if you even get started) to run easily into the 10,000 range.

I swear to god some people shouldn't breed.
Old Oct 23, 2007 | 02:38 PM
  #72  
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Originally Posted by AZ-ZBum
HOLY CRAP! You haven't got a clue what you're doing. I expect this project of yours (if you even get started) to run easily into the 10,000 range.
so are you saying that buying a Z31 turbo and putting a couple thousand into that engine (to produce over 300hp) would be easier to do and much cheaper??? wow....
Old Oct 23, 2007 | 02:45 PM
  #73  
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^^^ That's the easy way to do it... I thought this thread was "WHAT'S THE MOST DIFFICULT / MOST EXPENSIVE / MOST HEADACHE CAUSING WAY TO MAKE 300HP?"
Old Oct 23, 2007 | 06:03 PM
  #74  
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man, id rather stick my wiener into an electrical outlet than do another motor swap..... unless it was a sweet *** motor. lol
Old Oct 23, 2007 | 07:15 PM
  #75  
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If one already has a 1990 300zxTT...why wouldn't they drive that? It is a much better car than the 1987 Z



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