yummmy96712

iTrader: (1)

i was wondering if there's an option for standalone ecu tuning for auto 350s. i was looking for something like haltech, but the website only lists an option for manual trans. thanks!!

bealljk

iTrader: (13)

AEM Infinity, Link G4+, MoTec ... not sure about the auto

dkmura

iTrader: (64)

Are you looking for tuning, or full engine management? UpRev can tune a VQ with either an auto or manual.

yummmy96712

iTrader: (1)

tuning for now, but full engine management as i plan to supercharge. looking for around 500-550 hp when all said and done. i haven't picked a shop for tuning yet. i live in nashville, so any suggestions would help. thanks!

bealljk

iTrader: (13)

If you are doing a 500whp build you may want to consider the Uprev. Uprev will be able to handle your needs and you'll have plenty of other places that'll be shop-vac'ing your wallet of cash.

If you can back your power goals down to 400whp to 450whp you'll save yourself $10k to $15k and quite a bit of heart ache, especially on an automatic transmission.

Your transmission is going to be a speed bump ... might it be possible to sell the car and pick-up a manual transmission variant?

yummmy96712

iTrader: (1)

it's a dd, and i drive in traffic both ways so i'd like to keep the auto. i already have the uprev tuner cable, just wasn't sure it could do everything i'll need it to do. so, I should be good to go with it? also, is there a way to rebuild or replace the auto trans so it can handle more power?

CK_32

iTrader: (1)

I think you really need to do more research OP.

You're all over the place rn and this is kind of a dreamer thread. Your idea is a little bit unrealistic with the type of questions you are asking.

yummmy96712

iTrader: (1)

ck, enlighten me. i'm trying to not buy things i don't need. weren't we all dreamers at one point?

Conway_160

iTrader: (1)

If you want 500whp out of an automatic you need it rebuilt end of thread. If your serious about making 500+ its going to be cheaper and less of a migraine to find a 6mt car and use it as a platform. Keep the auto as your DD and the 6mt as your toy.

yummmy96712

iTrader: (1)

thanks conway. i'm ok with spending some money to get the z to where it needs to be to handle the hp. in retrospect, i should've just got the 6mt instead of the auto. do you think it'll be $4-5000 more to achieve 500+ with the auto, which would be the approximate cost for another z?

sorry for the thread going sideways. i'm just trying to plan out a build that dosen't include parts that i will have to sell when i outgrow them.

Conway_160

iTrader: (1)

Im not sure who even rebuilds the transmissions anymore, but it was a few thousand to get them rebuilt to handle the power. It may be slightly cheaper in the short run to just rebuild the tranny but in the long run it will cost more because the auto is not reliable at those levels.

yummmy96712

iTrader: (1)

i think i need to rethink this or take bealljk's advice and tone it down to 400-450hp. thanks again bealljk and conway for the info! i appreciate it!

Conway_160

iTrader: (1)

Most of us are here to help you, just please take our advice and don't try to start fights if you disagree.

bealljk

iTrader: (13)

make a good plan ... research what others have done, ask questions but dont be a doucher

an option for sure...If I could dd a 6mt I would...think very very long and hard about modifying your AT. Life will be easier doing this to a 6mt.

drop down to 400 to 450whp ... you can do it safely on a stock block, you need minimal fuel system upgrades, the drivetrain will hold it just fine, the uprev will work perfectly and you'll seriously reduce your cost...$5k is probably a little low but $5k to $7k would be a good window.

If I had it all over...before completely gutting my pristine, low-mileage supercharged touring, it'd have been 10,000% smarter to buy a salvaged Z and gone bat **** crazy on it...can you find a salvaged 6mt that you can turn into a project car and keep your AT as your un-touched daily?

You're welcome...take a look at Conway's build page and my build page - infact as many as you can ... I made many many mistakes on mine but I worked through it...dont repeat my mistakes..

this...dont start fights, be humble, say thank-you (which you have), dont be a d!ck, grow thick skin, soak up knowledge...among other things...

would be cool to see another FI build in these parts...

CK_32

iTrader: (1)

Yea don't take my replies the wrong way.

But everyone comes in saying I wanna build a 1000 hp Z then says tell me how I can do it for $20.

If you're serious it can be done but like they said you're going to need to do a LOT more than just ask us and bolt on any ol super charger.

Trans aren't rated on HP either btw, you need to figure out your Tq numbers and figure out the amount of shift cycles it can handle.

I know a few guys with 400 ish HP on auto trans. I don't know anyone running AT with anything above 425 so idk how much beyond that they can take. I also don't know all his breakages or issue history. But I do know he has an upgraded tq converter.

Either way look to spend around $5k to $8k to get to 450 or less HP. Beyond that you almost double your cost because all sorts of stuff needs to get upgraded.

And honestly no one needs anything over 400hp for a street car. Idc what anyone tells you 400 is more than enough for any street car. Which is why that 500hp street AT street car goal had me roll my eyes a little. Easy to say, hard to actually do and pay for.

NissanTracker

iTrader: (8)

I agree. Anything after 400hp is $$$$$. Shoot, I spent about 8K just to get 400hp on a stock block. lol... stock clutch too. I have another $1,500->2K right there to spend in the spring. The "proper way" after 400hp is too expensive for a normal street car to justify spending the money... reason lots seek advice for shortcuts. There are no shortcuts. Even if done the "proper way", there is always risk.

CK_32

iTrader: (1)

How is your stock clutch holding up at 400?

I'm planning on trying out my stock clutch for my 400 tune until I open the block and shoot for 550-600.. Some people say stock might hold up for a little others are saying it won't stand a chance. How's yours doing at 400?

yummmy96712

iTrader: (1)

CK, I apologize for my tone on that post. i've been on other sites where there's a TON of trolling, and assumed that you were doing the same. i think that i will just shoot for around 400 hp for the auto, and take everyone's advice and look for a salvaged 6mt to go crazy with. i've been to a shop in my general area that quoted 10k for a supercharged, rebuilt trans, and tuned build, and was just trying to collect as much information as possible to see how inflated the quote was. turns out, it was a pretty fair estimate and i think that i may just take them up on their offer. thanks again bealljk, conway, CK, and nissan tracker for all of your help and information!

CK_32

iTrader: (1)

Who/what is the shop?

It might be a killer deal for quality parts. But that doesn't mean that's what you're ganna get. Someone link him the purple Z project import had to repair. IIRC that dude spent $20k for his kit. Cost doesn't always mean quality.

What parts they are going to put on and what they are going to do is more important than the price. If they put on a eBay charger with that $10k that's not ganna do much. See if you can get an invoice of what they "$10k" gets you.

bealljk

iTrader: (13)

$10k seems right for an inclusive build ... but CK has a good point - post up what the shop is offering, I'm sure everyone here will offer their opinion on the build.

on a scale of 1 to 10 how mechanical are you? Can you do the work yourself? Do you have a garage where the car can be torn-apart & down while you build?

if it was me, I'd spend the $3 to $5 on a salvaged vehicle, $2 to $5 on chassis repairs(as needed) $5 to $7 on the supercharger build.

Phase it out, pay cash for everything, and take one step at a time - learning & researching every step of the way.