I have been compiling my list of parts to build my DE engine. However, after snooping around on the 370Z forum I have been thinking it may be more cost effective to go with purchasing a 370 instead.

I am only after 475-500 and it appears the VHR is handling that power very well. I would be after the GTM twin turbo setup or possibly the single twin-scroll kit once released.

Seems like a possible routs since ill be putting around 9K "MORE" into my car of which i would see only a fraction back upon selling some day, versus a 370z where i can pull the kit off and sell and be out only a few thousand.

Is this a better route for these power levels? Ive seen lots of main or rod bearings getting spun on the DE builds which makes me shy away a tad.Not to mention I would be in a newer vehicle.

 

The 370z responds very well to boost. We put down 510whp without much effort with single digit boost levels using a 6266 T4 1.0 a/r twin scroll housing.

The twin scroll is out for the VHR, I just took 5 deposits and things are starting to ship out. Hope to have everything out by the end of this year.

 

That's pretty freakin legit...assuming a "regular" (not tampered with) dyno. Not making accusations by any means. Definitely a good reason to go with a 37 for boost.

 

How was your torque line? Do you have that dyno sheet? I would love to see it and compare it to the GTM twin stage 1 and 2 setups.

 

No boost controller:




With a manual BC (hence the curved boost curve), and you can see the boost came on rather quick. The torque was kept down to prolong the life of the stock block, 10psi by 3700rpm:




You can see that when the max power of 550 was made, the boost was below 9psi. Again, the torque was kept down because it is a stock block.


This was on pump gas of course.


You can also find a lot of pictures and the build thread here:

https://my350z.com/forum/forced-indu...ication-4.html

 

a GTM Twin kit on a 370 was just put in at the shop doing my build.. minimal fuel system upgrades, and used osiris i believe.. was over 500 whp as well.

 

I would hope so considering cost of the kit along with added install costs is almost 3x that of a single midmount turbo kit.

Not to mention GTM's unsightly track record with their FI kits. Hopefully for new purchasers the quality control has increased.


As for the OP question. Are you asking if you should buy an older DE car, build and boost it or buy a 370 and then just boost it? If that's the case then for only wanting 500hp a pretty basic build on a DE could be had and 350z's are going for well under 10 grand now. 370z will be more expense in the aspect of purchasing the car.

Both are going to be a risk. Even stock blocks fly apart as shown by the once thought indestructible HR motors at 500hp but that didn't prove to be safe.

 

Binder,

I have FI on my DE. 2 kits actually. I love the car and responsiveness of my setup. However, like all of us, I want more. I have reached the safe limits of my DE. So now I need to build it, for right around $8k, with a new clutch.

OR....Buy a 370 that is proving to be able to hold that 500hp level very nicely and use that 8K for a kit. Sure the 370 will cost more but it will be 4 or 5 years newer and is better suited for FI.

 

My DE turbo set-up was great. Powerlab gt35r put down 420/380 and I loved it. Fast forward and now I'm running stage 2 Gtm TT kit on my g37 and it is a monster compared to my DE set-up. 540/500 and it is an absolute beast. Wheels r gonna HAVE to switch up since I can't go with the stance form anymore. Breaking up all the way thu 4th sometimes is just no fun. But you can definitely feel the difference in power. The 370s and G37s seem to love boost. I'm stock block over 3k miles boosted and I don't baby her at all. Raced buncha cars, Evo, subbie, boosted civics, boosted 350s, audi and BMW. So far only the turbo BMW with full bolt ons and e85 gas got me. Granted my clutch was stuck to the floor as I needed to replace the whole master slave n csc lines I'd like to run him again now.


Cliff notes - 370 is a great car for boost. DE has its limits and you will want more.
I think 540/500 is more than enough for the streets, I'd like to turn up my boost as well jus waitin to blow the motor

 

the DE is such a dated car. everything looks old. If you are thinking of getting somehting new, nows the time. Dont sink another penny into the old car. Like you said, there basically terrible resale on DE's.

Id get the modern interior, gauges, technology and resale with a 370. simple single turbo kit and you are all set.

 

yes, the car is dated. You will take a huge loss on your car since most built engine cars are selling for low 20's. So just be aware of that when thinking of cost for getting the new car.

Also, just because they HAVE held higher hp on the new engine doesn't mean it's safe or free from blowing up. That's what everyone said about the HR and there have been quite a few blow up. The difference is that not enough people are out there boosting the 370z and the ones that are haven't boosted for very long so those failures will soon come out.

Not to deter you from it, but don't think jumping ship will make you immune to engine problems. Be prepared for any car to explode into pieces with added power.

 

Very true, adding FI to any motor is potentially dangerous but I think the new vhr motors r somewhat stronger than previous models. As shown in pics the rods are beefier. That is normally the design of aftermarket rods. As always to minimize failure, good install and especially a tune help tip the scale in your favor.
As with my last ride, this ride sees full boost everytime it's turned on.

 

Damnit....Now I have to start from scratch..The girlfriend already expressed her deep concern about me doing this and becoming a garage vampire again. Guess its going to cost me more from buying her salon days...lol.

Anybody want to buy a twin-charged Z? Powerlab kit? Stillen kit?

 

There are plenty of boosted 370z's out there I think the reason you dont see many of them blow up is because of the tq. The 370z doesnt make as much tq as easy as the HR did because of VVEL.

OP if i was you I would get the 370z put a mid mount turbo kit on it throw 8-9on it and beat the crap out of it.One thing is for sure you wil want more I have a built motor GTM TT stage 3 with 570whp and Im already use to it. I am turning up the boost next week.

 

I would hope so considering cost of the kit along with added install costs is almost 3x that of a single midmount turbo kit.

 

3x amount? Not sure where u got that number from. Unless the midmount turbo kit is only 3k??? Sasha I'd have to say ur WAAAAAAYYY under pricing your kits!

 

I think he was refering to the install being 3x the cost.

 

Oh, he must've worded it wrong. Sure didnt seem like it.

 

ever pulled a motor? Hourly it will take at least 3 times as long if no more. So if a shop charges hourly (all do) then it will take more money.

I've done both. I would easily charge someone 3 times for pulling an engine to install a twin system over a midmount kit.

 

You should be focused on woman shopping in addition to car shopping.