Nissan 300ZX Z31 VG30DETT Swap Part 2

Formerly an 88 NA, this Z31 has had a VG30DETT engine from the Twin Turbo 300ZX (Z32) swapped into it. Part 2 of 2.

Part 1:
http://www.youtube.com/watch?v=lfHPbJQK2J8

Category:

Autos & Vehicles

Tags:

• 300zx
• nissan
• z31
• vg30dett
• vg30
• swap
• zcar
• fairlady

[TheAirsoftbeast22]

can some one brake down what the whole psi thing is and why too much it bad or good or what not??????????????????

[NYCZ31]

@TheAirsoftbeast22 When you add more air under pressure, as with a turbocharging, you increase the compression ratio, which adds more power. But you need more fuel to be mixed with that air. If the car's fuel injection can't add enough fuel, your engine goes boom. "How much boost" is a loaded question that depends on lots of factors.

[NYCZ31]

I'm not sure why you would want to swap in an engine (RB25) with lower displacement, is not bolt in, and is hard to get parts for. I think you should just rebuild. Plenty of power to be had with the engine the car originally came with.

[nicon87]

52 psi?!!?

sounds retarded

[NYCZ31]

The Electromotive GTP ZX Turbo race car, which used the VG30ET, could put out 1000RWHP in qualifying trim. I saw a dyno chart and peak boost was at around 100 inches of mercury, which converts to around 50 psi. Race cars can do some pretty retarded things. Unfortunately I cannot post the URL to the dyno chart here because of the dumb comment rules. Send me a message and I'll send you the link.

[karskatmesodd]

@TheAirsoftbeast22 psi is the pressure from the turbo.

too much is god if you got enough fuel so it wont fuel cutting and cooling, but if you don't have that the pistons and rods can melt or you can get ignition knocking

[brandonBRKDWN]

your 88 kicks my 88's ass D:

[Suprakidd1]

14psi good for daily driving?!?! if daily driving involves murdering corvettes lol jus "A to B" daily driving sounds good at 8psi to me. thats just me..

[MIZQUITLI]

You guys did a good job fitting that big wide VG30DETT though!

[MIZQUITLI]

Unless you got the engine super cheat or for free then i can see the swap being worth it, but the VG30ET is far better and cheaper to build getting more out of it then the VG30DETT.

[gofster88]

That is awesome, I am accually doing the same swap right now, just with the vg30de in stead of the tt, it is suppost to be alot simpler and drops right in, I was told the only custom parts I would need is a custom intake and exaust, where are you guys at, I would be really interested with seeing this car, there aren't many vg30de powered z31' s, I'm in richmond va, and anywhere on the east coast I can probly get to

[TEUFELHuNDEN420]

Nice swap guys, freed up a TON of space! Hey i recently blew a rod bearing due to oil starvation.The engine i had was running 555 inj, bored .40 over, wiseco pistons + a ton of other upgrades. Do you think it would be cheaper to get a new engine & upgrade that one or to crack open the engine and replace/fix and possible machine work?