Individual Throttle Bodies from Jenvey

[Jacko3]

Does anyone know anything about individual throttle bodies and theri effect and impact? I saw this product on injected performance today. See link: http://www.injectedperformance...10507

Product seems expensive.

[dasoupdude]

Doesn't seem that bad compared to as buying a turbo kit which might require changing a few things inside the motor itself and spending more bread.

I'm interested in the gains.

[Jacko3]

I will be calling them this week to see what gains it gives and how much it might cost to install.

[Jacko3]

I just called a company called Forged Performance that sells any and all things G-35 and G-37 and 350 Z, and they tune these cars as well, and I was told that the ITB's (Individual Thgrottel Bodies) are way to expensive for the gains they provide.

I was advised to either seek Forced Induction (FI)---they seemed to prefer turbos (APS turbo systems), or at least get a U-Tech mapping system installed and tuned by them for about $1,300 with all the mods I already have on the car. They said, they could come close to achieving 260 RWHP or about 325/330 HP at the crank for our G-35 C with NA (Naturally Aspirated).

So, If I go with the U-tech mapping system and tuning with all my current mods, I would have spent close to $3,300 on NA application, when compared to the $7,000 + for an FI application. I guess one has to decide what they want from the beginning before deciding to either go NA or FI.

So in essence, Supercharging our cars would roughly cost about 2.0 - 2.5 times of an NA application. Also it would appear that turbo charging the car would cost roughly 3.0 times the cost of an NA application. The company has installed tons of turbos without problems, as I am told, and that turbos that fail or blow up an engine are a function of poor installation, poor tuning, and over boosting---he said they set their boost levels to 6 PSI---all with stock internals. In fact, they said a turbo is actually easier on the engine than anticipated. I sort of scratched my head at this. But, who am I to dispute the words of an expert.

So, ITBs are out of the question. Just my 2 cents worth of research.


Modified by Jacko3 at 9:26 AM 10/6/2008

[joe603]

Forged Performance is a great company! If you do go with the U-Tech, it can also be used for tuning FI apps (if you go that route later).

I've talked with them as well and to do a proper turbo install, they recommend you pull the engine out (the front clip comes down with the front wheels from underneath the car) and do the install. So for this reason, I decided that IF I do FI, it will be a Vortech SC.

[Jacko3]

Joe:

Yes, he said the same thing. Thats why I am looking at the NA for now as an option until the money for the FI is available. My current goal is to pay off the car by Spring of 2010. If not, I would have had the money to do a twin turbo. Oh well, such is life.

[Sentientbydesign]

I'd like to see someone modify the VQ35HR dual throttle bodies on an older coupe lol.

[SteveTheTech]

I saw this product recently on another forum that had been installed on a bored 3.5. This is not really a practical mod there are no air filters and new injectors are required for installation. This would require a new computer and throttle system. I would personally love to put one of these on a G along with many other things.

The HR would be good, but a VHR with heads and a stroker kit is what I am thinking. I wonder what ECM mods and wiring alteration would be required to accommodate the additional sensors for the exhaust timing control.

FI is fun and makes the most satisfying sound a car can make, but in any case it will accelerate wear on stock internals. It's just the nature of the beast. You may get decent use out of it for some time if it does right and not beaten too hard.

[BrandAidDesignG35]

I'd like to see someone modify the VQ35HR dual throttle bodies on an older coupe lol.

Me too!!! I'd love to see the gains on a 1st gen sedan

[SteveTheTech]

http://www.injectedperformance...10416

If finance was not an issue I dream of building a G41

[joe603]

1200 HP huh....damn!

[Jacko3]

Yep! the G can be stroked and rebuilt to produce 1,200 HP.

[Tampa G35 Sedan 6MT]

I guess if you really like the car... then do it..

But I think if Jacko has 1200hp in his G... well he might be in the hospital and not driving it!

his infatuation with the car will give him a heart attack before he ever makes it to the track!

[Jacko3]

Tampa;

I fell from my chair and laughed like a fool after reading your comment. My stomach hurts. You are right! Good one!

[Tampa G35 Sedan 6MT]

I have to say I would be the same for me

but since you are much closer to a 1200 hp G Can you put the G in your will and leave it to me?

[Jacko3]

The G is going down 6 feet with me---including a supercharger when I eventally buy one.

[eZg001]

I've talked with them as well and to do a proper turbo install, they recommend you pull the engine out (the front clip comes down with the front wheels from underneath the car) and do the install. So for this reason, I decided that IF I do FI, it will be a Vortech SC.

Damn, I wonder how much cash pulling the engine adds? It only make sense to build it while it is out and all of the sudden your looking at $20K instead of $10, huh?

I am relatively close to them and was planning on going to them to get a Turbonetics single turbo kit installed next year. I'll probably get the UTEC and whatever bolt on additional mods...then wait till this damn economy picks up before turbo install and build.

[Jacko3]

Yep! And this is why the superchargers seem like a good deal in comparison.

[eZg001]

so is this universally accepted knowledge that the motor needs to come out for a single turbo install? This is the first I have heard about that little 'Gem" of info in over a year of researching the G!?!?

Are you SURE they were not just proposing the most extreme install? Did they say that a turbo absolutely cannot be installed with the engine in? I hate to call them and waste their time since I am not ready....maybe I'll email them!

I couldn't sleep last night because of this fricken thread!

[Jacko3]

I totally have no idea if an engine has to be pulled before installing a turbo. I was just responding to your earlier comment about dropping the engine. However, I have read eslewhere that to install a turbo, sometimes, its best to drop the engine in order to do it well. I am not sure about this. However, I have never heard or read the same about a supercharger.

[eZg001]

I hear yea....I just sent them an email.

I am far from an expert in FI, but have been reading and reading about our cars. I really like how the turbos have a 'rush of speed' feeling even if it is a little delayed.

From what I have read, it also seems like turbos have a little more adjustability. Perhaps superchargers can be tuned too, but I wonder if they can both be equally upgraded..or modded with different injectors, tunes, etc......

back to the research......

[Jacko3]

Yep! Both of them can be retuned in all sorts of ways. It all depends on how deep your pocket is.

[TeflonG35]

Ive talked to shops around here and they say it isent hard to take the engine out. And when you do that it makes the install so much easier.

Ive heard alot of good things about ITBs on hondas. Not much on nissans. I don't think it is very practical on a Street car.I don't see any air filtration system involved with th ITBs. That just seems dangerous to me.

[BrandAidDesignG35]

well put

I think if you had the $$$, 15K will get you a fully built G35 engine with a redline of 11K rpm.

If I had some silly $$ at my disposal, I would certainly consider this mod, however, considering you can get nitrous for less than any FI, with little engine mods required, I see it as a great option. But I plan to research as much as possible prior to install, I've also toyed with putting the Nitrous kit in my altima as a test car.... I know guys, you all wanna see a G getting sprayed.... I love my baby too much, don't wanna hurt her. As long as everything is safe, I will go for it

[TeflonG35]

I raced a maxima with Nitrous at the track. The car was in the 13's. It was a newer Max with the 3.5 badging on the trunk. That car pulled sooo damn fast from the line.

I still wish there was more info on these ITBs.

[zxman69]

Hey Jacko, I'm in FT.Lauderdale also and I can help you out with those ITB's

Edited by G_whizz

Please do not post a link to a competing forum. If you would like to become a NICO sponsor you may get in touch with an Admin. Otherwise, you may contact Jacko through email and off the NICO boards if you wish to assist him.

[zxman69]

Sorry G_whizz I didn't know that i couldn't link to another forum as I see links to yours all of the time,including the one that I linked up to. I was just trying to give Jacko some info on the Jenvey ITB's that he was asking about and as I have first hand experience with them I thought I could help. Jacko if you are still interested please contact me by e-mail.Once again sorry for my mistake G_whizzNeil

[G_whizz]

No worries my friend. I don't make the rules... just enforce them.

I appreciate your cooperation!