Differences btw Twin-Turbo and Single Turbo??? - Page 3 - G35Driver

Jul 13, 2005 | 01:26 PM

#31

djniknala

Registered User

Joined: Mar 2005

Posts: 902

Likes: 0

From: Fort Rucker, AL

The G35 has numerous times. My car did 13.97@100. Best speed was 101 but I think I'll do better in a week or so, hehe. I know a couple people have done better than that.

Quote:

Originally Posted by Nightmare

I think this car can run 13s stock actually, but I dunno if anyone has done it.

Jul 13, 2005 | 05:32 PM

#32

Nightmare

Registered User

Joined: Jul 2005

Posts: 41

Likes: 0

Yeah if you are traping 101 you should run 13s...

Jul 14, 2005 | 07:54 PM

#33

SloG35

Registered User

Joined: Jul 2004

Posts: 103

Likes: 0

From: CO

Haha, i knew my car was slo, just not that sloooooo..... being stock. Hell my STI ran 12.69 @ 108 in Gainseville FL with just an DP/Exh Hehe, we won't discuss my 03 cobra with 900 bucks in mods ran or the power it put down. The price you have to pay to have a G35..... haha

Jul 19, 2005 | 11:51 AM

#34

alpine

Registered User

Joined: Jul 2005

Posts: 7

Likes: 0

Quote:

Originally Posted by Mad Paradox

- Well, I do understand the basic concept of having a turbo'ed car. I haven't seen dyno numbers between the two different setups yet.

- I was reading up on some newer "Hybrid Turbo" design's which incorporated dual ball bearing with ceramic turbine fins that would reduce the amount of lag significantly. Although, it is still under extensive of research I find it quite promising.

I thought I would drop this off here/for you so that you can take a look at the APS single and TWIN turbo dyno's.

Here are the dyno sheets for the Single Turbo 350z and Twin Turbo G35.

These are the Brainstorm Performance shop cars, the dyno is a DTS AWD dyno, highly accurate, and very repeatable results.

You can easily add 10% more HP to these results for "DynoJet" numbers, and sometimes more, depending on the setup of the DynoJet.

Also for anyone interested in getting detailed info, (someone may have already mentioned this, if so I apologize) Brainstorm is holding a BBQ, MEET, and Dyno day, and for your technical needs David (Senior Engineer) from APS will be present this Saturday 7/23 from Noon - Six.

The shop is open from 9:00AM-6:00PM should there be other needs.

Attached Thumbnails

Differences btw Twin-Turbo and Single Turbo???-350zsingleturbo.gif

Differences btw Twin-Turbo and Single Turbo???-g35twinturbo.gif

Last edited by alpine; Jul 19, 2005 at 11:56 AM.

Jul 19, 2005 | 02:41 PM

#35

neffster

Registered User

Joined: Feb 2004

Posts: 8,269

Likes: 0

Kinda' makes the ST look like the better option when you factor in pricing, no?

Jul 23, 2005 | 03:33 AM

#36

boostinmr2

Registered User

Joined: May 2005

Posts: 48

Likes: 0

Quote:

Originally Posted by KjbAlto

What are you talking about Nightmare??? Somebody should delete your post, not mine. Read the review that Brian even posted above. Everything I said was said again by the guy reviewing the ST kit. He said he gets more power sooner on his TT kit.

A TT will almost certainly pick up faster than a ST set up but if you are going to say a TT gives more torque than a ST setup, your statement is so general and so broad that it is misleading. The one thing that is correct and I'm sure everyone will agree is that a TT is more driveable as the powerband is shifted into the lower RPM range. You must realize though, for this shift to go lower into the power band, the turbos must be sized smaller, which ultimately gives up on the top end of the RPM range. Now someone else said that TT will ultimately give the most horsepower. That statement is such a crock of S**t as you can make the highest HP on EITHER a ST or TT and this is not G specific...only difference is that you spend twice as much money on the TT.

Quote:

Originally Posted by KjbAlto

You get more hp out of a TT and he even said that if he didn't want that much hp he would've gone with a ST. So from this guy's review, which Brian posted, the TT is superior in every way and he said the ST would be his pick after that, and then the supercharger. So please tell me what I said in my post that you said is absolutely not true and that somebody should delete my post??

PS - Go pick up SportZ mag and see what they review about the TT over the ST. The judges said that the Turbonetics kit kicked in for more of the higher rpm's while the TT kicked in early and was much more fun. They show you dyno's of all the kits and the TT's had torque curves very eary. Also pick up Road & Driver's Speed magazine that reviewed 4 turbo kits.

Once again, you are referring to someone's VERY broad and generalized statement. Any turbo company out there can easily size a ST to provide way more power by simply changing 1 turbo. When increasing the power on a TT kit, you have to carefully consider how large of a housing and compressor maps as they may not all be well suited for the G engine (or any engine for that matter). While in this case, the TT setups may be well made and thought out, I think over time, very promising STs will come out (like the APS).

Jul 23, 2005 | 03:37 AM

#37

boostinmr2

Registered User

Joined: May 2005

Posts: 48

Likes: 0

Quote:

Originally Posted by tony

Personally I say twins are the way to go with the G35 and 350Z, I know that the single is more efficient but go look at the dyno graphs and also the plumbing for the single vs. twins. You're using stock headers on the single plus the exhaust has to flow down the headers and over the transmission on the passenger side for the APS single..

Not to say the single is not a good choice because it is..but on a V engine it doesnt matter how you cut it.. the twins will spool faster. Anyone that disagrees bring a single turbo G35..I have the twin turbo kit and we can make a fair comparison.

For what the twin setup costs, you bestter have a faster spool up. Honestly, I think if someone did it right and made a new exhaust manifold that is more efficient along wtih a ball bearing turbo (correct em if I'm wrong, I'm not sure on the single setups available to the VQ market today), the spool up can be almost as fast and still be quite a bit cheaper than TT.

Jul 23, 2005 | 03:39 AM

#38

boostinmr2

Registered User

Joined: May 2005

Posts: 48

Likes: 0

Quote:

Originally Posted by Mad Paradox

Well, some people just get all bent out of shape when you disagree with them. Earlier someone mentioned having a biturbo setup which is a smaller turbo along with a larger one. I believe it is called a Sequential Setup where the small one would spool up during the low end and eventually the larger one would spool up to pick up the rest of the high end, thus eliminating most, not all, but most of the lag.

I dunno...The FD3S rx7s had sequentials. I had one and had a crap time with that setup because of the million vacuum hoses and there would always be one or two that wanted to crack or blow off causing a bunch of problems.

Jul 27, 2005 | 10:47 AM

#39

KjbAlto

Registered User

Joined: Apr 2003

Posts: 237

Likes: 0

I said they have more torque down low. The torque curve kicks in earlier. Right now, if we're comparing kits available, which I thought we were, since these are our only options, the twins will definitely give you more hp. I'm not comparing twins and single turbo's on a supra, we're talking about a G35 here. In that case, yes, the TT kits that are available now will definitely give you more hp than the singles, that's a fact and has been proven. Now I belive SFR just posted the other day that they're working on a kit that has a much bigger single turbo and will be capable of much higher hp than the current kits. But again, there will be a lot of lag with that.