anybody with a APS single turbo kit???

[gmoney350Z]

i just wanted to know if anybody is running on a APS single turbo kit on a auto 350Z. im thinking about puttin one on my 350Z and i just wanna know........

how much whp would you get from it?

what psi can you run for everyday driving?

should i really put a turbo in my Z since i drive it daily?

what other upgrades do i have to do since it an auto?

or should i wait for the 2009 nissan 370Z?

thanks
Modified by gmoney350Z at 10:55 AM 10/31/2008

[InjectedPerformance]

Please post the questions you need to be answered.

[InjectedPerformance]

i just wanted to know if anybody is running on a APS single turbo kit on a auto 350Z. im thinking about puttin one on my 350Z and i just wanna know........

how much whp would you get from it?

what psi can you run for everyday driving?

should i really put a turbo in my Z since i drive it daily?

what other upgrades do i have to do since it an auto?

or should i wait for the 2009 nissan 370Z?

thanks

Modified by gmoney350Z at 10:55 AM 10/31/2008

375whp @ 9-10 psi on Dyno Dynamics

At this power level you will be safe to daily drive.

I would suggest a valve body upgrade for the transmission.

I would also suggest an exhaust if you do not have one now.

[R350Zz33]

how much whp would you get from it?

Modified by gmoney350Z at 10:55 AM 10/31/2008

386hp @9psi

what psi can you run for everyday driving?Modified by gmoney350Z at 10:55 AM 10/31/2008

you should probably run 9 psi or less if u want base psi for it is 9 psi.

[xjmxstac]

I hear from the turbo guru himself (JETPILOT) that the single turbo application for the 350z is inefficient. Twins are preferred by most because of how the 350z's engine is configured, but ultimately, it all depends on what you're using the car for track/drag.

[R350Zz33]

its hp#'s suck 386 hp u can almost touch that still being na pulleys full exhaust set intake cobb tuning race pipes headers throw in a 50 shot of nitrous and u have about the same hp. i would recommend the greddy twins set up.and buy another engine and set it up on that buy all ur forged internals ext... you know do it the right way

[gmoney350Z]

im just lookin for something to add alittle more power to my Z so thats why i was thinkin about a single turbo kit.

[evildky]

its hp#'s suck 386 hp u can almost touch that still being na pulleys full exhaust set intake cobb tuning race pipes headers throw in a 50 shot of nitrous and u have about the same hp. i would recommend the greddy twins set up.and buy another engine and set it up on that buy all ur forged internals ext... you know do it the right way

you are asking for the flames, crank hp and wheel hp are 2 very different things, and no you won't get near that on an n/a and nitrous still counts as a power adder, and not all dyno's calculate equally, he stated on what dyno his result was based, I trust it's acurate, the guys at injected performance know a thing or 3 about making 4 digit power in the z33 so I trust what he says

and nothing wrong with the single turbo setup, the HR lends itself more to the twin setup, it really comes down to a matter of personal preference, reread the thread where jetpilot and I discussed the benefits of each in detail

[JETPILOT]

I don't have anything agaisnt single turbos, but I do have issues with both the APS and the Turbonetics single kits. They are incomplete, and have many issues.

It's general thinking that I'm not looking for that much HP so I image that's what a single turbo is for, because 2 will give me much more power. Well that's not true. Both single and twin turbo kits have their own characteristics that should dictate which one you should go with.

The single turbo kits spool up much later than the twin turbo kits on the Z. Look for full boost on the single turbo kits from 4300-4600 RPM. And whne the power hits the tourque/HP curves usually spikes pretty hard and the power is over by 5800RPM without cams.

The twin turbo kits like the Greddy are at full boost and the power will last til about 6200 rpm without cams. The Greddy has a much longer powerband and that can be extended with a set of cams up to about 6800 RPM. The power doesn't peak like a single. Driving around town you will have much more power in the daily driving RPM range with the TT.

Some people like the peaky nature of a single turbo, becasue when the power hits it hits hard, but traction can be an issue with the power band being so dramatic. For seat of the pants fealing of being fast the single is where it's at, but in reality the twin has more power but it's spread out.

The only single kit I would go with would be the Powerlab single. It's expensive, but it is complete and very well engineered. It comes with the UTEC which is a decent EMS for the money. It uses a Garret GT35R which is one of the best turbo's avaialble.

If you want to discuss options for twin turbo kits let me know.

Whatever turbo kit you go with be aware that at some time your OEM motor will fail. The OEM connecting rods are junk. So you can build before it goes or after, but before it's much cheaper since you don't need a new block.

[evildky]

The single turbo kits spool up much later than the twin turbo kits on the Z. Look for full boost on the single turbo kits from 4300-4600 RPM. And whne the power hits the tourque/HP curves usually spikes pretty hard and the power is over by 5800RPM without cams.

The twin turbo kits like the Greddy are at full boost and the power will last til about 6200 rpm without cams. The Greddy has a much longer powerband and that can be extended with a set of cams up to about 6800 RPM. The power doesn't peak like a single. Driving around town you will have much more power in the daily driving RPM range with the TT.

Some people like the peaky nature of a single turbo, becasue when the power hits it hits hard, but traction can be an issue with the power band being so dramatic. For seat of the pants fealing of being fast the single is where it's at, but in reality the twin has more power but it's spread out.

The only single kit I would go with would be the Powerlab single. It's expensive, but it is complete and very well engineered. It comes with the UTEC which is a decent EMS for the money. It uses a Garret GT35R which is one of the best turbo's avaialble.

losts of misinformation and opinion expressed as fact in there, and jetpilot was only a minor contributor to the lengthy discussion of single vs twin rcabrita was the other major contributorhttp://forums.nicoclub.com/zerothread?id=366734

a well engineered and well tuned kit will dictate when you hit full spool, and how hard reguardless of how many turbo's are involved, I do nto doubt that you have personal experience with specific kits but you can't make a broad statement about all single kits based on your experience with one, nor can you make blanket statements about twins

read the thread linked, lots of good info there

[JETPILOT]

I have had an 82 280ZX Turbo, and 84 300Zx Turbo with a custom turbo, a stock Buick GNX, an 87 Grand national with a single turbo Duttweiler 4.3 motor which ran 9 sec passes. I have have a 350Z with both a single and a twin turbo kits.

How many dyno sheets will you like me to show you that support my argument. Not to mention the years of experience.

What I preach about the 350Z and the turbo kits is the truth. Like it or not.

How much experience do you have with turbo 350Z's? Oh wait... tyou don't own one!

[evildky]

...yet I repeat;a well engineered and tuned kit it far more important than the number of turbo's, the dyno sheets have been posted and discussed, you can build a system to achieve just about any result using single or twin turbo's, vague generalization of the superiority of one setup over the other shows a lack of understanding

I do not doubt that YOUR twin kit was superior to YOUR single kit, I don't doubt that you have dyno sheets to back that up, but either of those kits could be made to spool faster, or peak higher with different turbo selection and if you've done much tuning I am sure you've found agressive timing curves greatly effect spoolup, as does a/f ratio

and yes I do not as yet own a 350z, I do currently own a 300 whp L28ET powered 71 240Z, a 315 whp 87 300zx, and basic stage 3 91 TT, I've owned a turbocoupe but I'm not proud (actually the little turbo 2.3 is impressive) (and about 20 n/a cars) I've built and tuned to MSnS systerms, halped with others and currently building the L30ET to a goal of 450 whp, I've been working on cars for most of my 34 years, I've only been racing them for the past 9 years

I can tell you that my single T3O4E Z31 spools faster and harder than my Z32TT but the variables are too many to be comperable but the single also has way more bottom end grunt, even if it is the lesser loved single cam variant with much less engineering

so no I do not have any first hand experience with these kits as none of my turbo projects involved a "kit," I had to learn and build to fit my needs, the gt35R flows 70 lbs/min, enough air for 700 hp, which is great if thats your goal, but is unnecesarily large for a stock configuration, if your goals is to retain the stock block something a bit smaller will spool more quicly like the GT3037

boost levels, compressor efficiency, flow rate all play a part, there are too many variables to be able to claim either setup as superior as either can be engineered to spool, sooner, or flow more or whatever it is that you want in a turbo kit

[rmezz13]

here we go again

[RCA]

How many dyno sheets will you like me to show you that support my argument. Not to mention the years of experience.

What I preach about the 350Z and the turbo kits is the truth. Like it or not.

Then post them.This proof would definitly provide some answers.

I want to see single vs twin dyno sheets.Also can you describe the:1) Fuel setups2) Turbo hardware (ie manifolds etc)3) Turbos4) The dynos if diffrent

That would definitly do the job

[[email protected]]

I had the turbonetics kit and got rid of it to go with twins. Its not that you'll make way more power its that you'll have a nicer powerband with the twins. I track my car a lot and having a big single turbo didnt help me come out of the turns because of lag. Two will spool up faster.

[evildky]

Two will spool up faster.

please read the entire thread and the linked thread

[JETPILOT]

I had the turbonetics kit and got rid of it to go with twins. Its not that you'll make way more power its that you'll have a nicer powerband with the twins. I track my car a lot and having a big single turbo didnt help me come out of the turns because of lag. Two will spool up faster.

You will definetly be able to make more power with a twin than any twin turbo over the Turbonetics sisngle.

Compare the Turbonetics singles 2.5" downpipe, and my Greddy's dual 3" downpipes. The Turbonetics single has the lowest potential to make power than any other kit available. The restrictive 2.5" downpipe also prevents a fast spoolup. The turbonetics is good for 400whp, and not much more before the powerband falls apart.

My car with the Turbonetics kit had 470whp and my peak power was at 5300RPM because of the downpipe. People tried different compressor and turbine combinations, but the downpipe was the nail in the coffin.

Evil... you want to discuss turbo kits in a hypothetical context. We're discussing applications for the Z.

[evildky]

Evil... you want to discuss turbo kits in a hypothetical context. We're discussing applications for the Z.

JET, you clearly has a lot of hands on experience and a much stronger grasp on the science involved than the average member. I just hate to see generalizations thrown around to people who do not understand the subject matter, and then regurgitate that information until it's accepted as fact.

I found a lot of that as I learned, there was a lot of misinformation out there accepted as fact because if some faceless person in the internet said so then it must be true. The Z32 comunity is the worst for this (sorry guys not pointing fingers just the comunity as a whole has a single way of doing things and no one actualy knows why, they just do what everyone else does).

Making general statements about "single" and "twin" turbo setups is purely hypothetical, and the terms do not dictate specific kits or even predicate it must come in "kit" form. Not all single kits are created equal and neither are the twins. A better educated consumer will have better luck at finding what he wants the first time, much like your single kit you were unhappy with before switching to a twin that you are no happy with. If you had known then what you know now you likely would have made a better choice the first time around, I learn something new every day and I just try to share what i have learned from my mistakes.

[RCA]

How many dyno sheets will you like me to show you that support my argument. Not to mention the years of experience.

What I preach about the 350Z and the turbo kits is the truth. Like it or not.

Hey JET no plans for posting them?I don't dout your claims but I think posting dyno sheets will make for a much more constructive arguement then what has been going on thus far.

[JETPILOT]

I'm in the process of collecting the info. I'm looking for cars with similar power levels tuned by the same tuner. It's hard to find two similar vehicles with the same power, tuner etc.

I deleted my Turbonetics dyno sheets. Give me a little time.

[RCA]

Trust me bro ALL I have is time...The only thing I can ask of you is to pick dyno sheets unbiasedly inorder to prove your point

Also I assume finding identical cars is near impossible so try not to be too picky...Just provide info from each cars set up so we can determine the variables.That is our best bet...

Unless you want to throw on a Single turbo kit on a Z then removing the single with a twin...Of course using the same type/category of turbos that have identical flow rates and have the Z use identical tunes But that would be an AWESOME write up for the TWIN vs SINGLE battle but it would take some serious time, effort and $.