Nissan 370Z Tech Forums banner
1 - 20 of 35 Posts

·
Registered
Joined
·
1,955 Posts
Discussion Starter · #1 ·
These Twin Turbo kits seem to be for the SERIOUS performance enthusiast!!

350Z/G35 twin turbo system
The 350Z and G35 is definitely a well rounded sports car.They have the looks that make people turn their heads.The handling of these cars is great and the power is adequate. However, we felt the the performance hungry enthusiast might find the performance a bit anemic.For most people, this is not enough so we developed the Speed Force Racing twin-turbo system.Now you can have a dyno proven 476 horsepower at the wheels out of your 350Z/G35. Imagine 571 horsepower at the crank? This is enough wheel spinning power to leave pretty much anything in the dust.The amazing part is that it only requires 10.4 psi of boost to do it! At 9.4 psi you can expect 456 horsepower at the wheels. At 8.5 psi your car will spin the rollers to the tune of 439 horsepower.The Speed Force Racing twin-turbocharger system does not require any internal engine mods.The only thing that is required is a competent mechanic and a tankful of 91 octane pump gas to unleash the beast.How can we make more power then the rest? It is easy.We focused on efficiency.This means we can make more power with less boost which ultimately leads to a longer life span of your motor.





The Speed Force Racing twin turbo system for the G35/350Z includes the following parts: two T-3/T4 60-1 hi-fi turbos,oil feed and return lines,304SS headers with merge collectors,two 38mm Tial or Turbonetics Evolution wastegates,two 304SS downpipes,Spearco intercooler(the G35 gets two),Mocal scavenge pump,aluminum oil sump,hoses and fittings,aluminum intake and intercooler piping,silicone hoses,stainless steel hose clamps, HKS Sequential blow-off valve (Godzilla blow-off is an option),two K&N airfilters,Split Second FTC engine management system (which comes pre-tuned), 440cc injectors,Walboro 255 fuel pump and all hardware and instructions needed for a professional install.





A few of the unique features of the Speed Force Racing twin-turbcharger system includes, a blow through mass-air sensor set-up.The air metering is much more accurate this way.We incorporated the sensor into the intake pipe so there is less clutter and more style.Another benefit of doing it this way is the fact that we can use a real blow-off valve that vents to atmosphere.





For the G35 we included twin Spearco intercoolers.On the 350Z we elected to use one big front mount Spearco intercooler which fills in the front of your bumperThis way the system could be used with the stock front bumper cover on the Z and G.There are no modifications required to the aluminum support structure like other kits. You can see that we are concerned with optimal airflow.This increases efficiency.Increased efficiency means increased performance without more wear and tear.








Another benefit of our turbocharger system is the headers.We use specially designed 304 stainless steel equal length exhaust manifolds (321SS is an option).This improves the overall power and torque.We also mounted the turbos down low to alleviate problems associated with the heat generated by these two turbochargers.The other turbo systems on the market utilize log style manifolds and mount the turbochrgers high in the engine compartment which means that vital components are subjected to a tremendous amount of heat which will lead to premature failure.Why would anyone want to take a chance like this?





We utilized two T-3/T4 60-1 hi-fi turbochargers that are good for 1000+ horsepower at the wheels.The twin Tial 38mm wastegates can be dumped to atmosphere or routed back into the downpipes.







Big power and a flat torque curve is what you get when you purchase the Speed Force Racing twin-turbo system for the 350Z ad G35.We gained a peak of 252 horsepower at the wheels and the peak torque increased by 209 ft/lbs on a completely stock motor! This is over a 100% increase in power output.For the diehards that plan on building thier motors,swapping cams and going to return style fuel systems, this is the twin-turbo system for you.With the ability to make in excess of 1000WHP their is nothing on the market that can compare.







The retail price on the lit is:
$7795 for the complete kit
$6795 for the tuner package without the fuel system and ECM...
This kit appears to be engineered for the SERIOUS hp buff and is capable of 1100hp as it sits on a built motor,unlike any TT kit on the market where they need to upgrade turbos to reach their advertised HP levels. The turbos are not ball bearing type but can be upgraded to them.The nice thing about this kit is it give the end customer to option UP or option DOWN on certain parts of the kit such as the turbo internals and the materials used in the piping.
For more info:
http://www.speedforceracing.com/productsin...g35turbokit.php
Please let me know of any questions or concearns your input is valued
 

·
Registered
Joined
·
1,728 Posts
With you all the way to 8.5 psi....

That's scary HP! How do you think the stock internals will fare?...
 

·
Registered
Joined
·
1,049 Posts
Very exciting :clap:

What about turbo lag?

How much extra to upgrade to ball bearing turbos?
 

·
Registered
Joined
·
1,955 Posts
Discussion Starter · #6 ·
WOW achieving those power levels with that low boost, only question is the tune and how lean it would be.

I don't kno if I missed it but only saw a fuel pump and for those boost levels you need a fuel return.

Otherwise nice numbers.
That is why they offer the Tuner kit,add your own fuel system and ECM. FYI the APS fuel return system is not a "TRUE" return system it simply recirculates the fuel at the tank and relieves the pressure at the rails,but I can not see it being a true "RETURN" system. IMHO the AAM return system or the one from CJ Motorsports are a needed addition to any TT car. I do find it odd that as a vendor you keep replying to evey thread and everything I have to say.It just seems odd...
As far as the kit producing such high levels of HP their turbos are perhaps more efficient than APS 's turbos and are unquestionable capable of producing WAY more HP. I believe they have an A/F chart listed on their site and it was at 11.7 at redline,thats no where near as lean as the APS kit gets at those HP levels.I maxed out my APS injectors at 470whp..
 

·
Registered
Joined
·
2,063 Posts
That is why they offer the Tuner kit,add your own fuel system and ECM. FYI the APS fuel return system is not a "TRUE" return system it simply recirculates the fuel at the tank and relieves the pressure at the rails,but I can not see it being a true "RETURN" system. IMHO the AAM return system or the one from CJ Motorsports are a needed addition to any TT car. I do find it odd that as a vendor you keep replying to evey thread and everything I have to say.It just seems odd...
As far as the kit producing such high levels of HP their turbos are perhaps more efficient than APS 's turbos and are unquestionable capable of producing WAY more HP. I believe they have an A/F chart listed on their site and it was at 11.7 at redline,thats no where near as lean as the APS kit gets at those HP levels.I maxed out my APS injectors at 470whp..

WOW sorry, I was not replying as a vendor but as an enthusiast and I was not knocking the kit just making observations, I did not say anything else was better or worse where did I say that in my post. I know the APS return is not a true return just good enough for their purpose.

So take the sensitivity level down a notch or two and I promise I WONT post on any of your threads any longer.
 

·
Registered
Joined
·
1,955 Posts
Discussion Starter · #8 ·
WOW sorry, I was not replying as a vendor but as an enthusiast and I was not knocking the kit just making observations, I did not say anything else was better or worse where did I say that in my post. I know the APS return is not a true return just good enough for their purpose.

So take the sensitivity level down a notch or two and I promise I WONT post on any of your threads any longer.
Well to me it just seemed as if you were trying to promote the products you sell on my thread,or at least put down the products I am promoting.Maybee I misunderstood,but this is the 3rd time you did this sort of thing to me. I find it disrepsectful for one vendor to post in another vendors thread,although I am guilty of it at times...Different story if its an open debate,but to me its similar to me going on one of your threads and bashing your pricing or service..No hard feelings.. :cheers:
 

·
Registered
Joined
·
334 Posts
:jawdrop: thats amazing. 1 question y does the G35 have 2 intecoolers. space?
 

·
Registered
Joined
·
58 Posts
Amazing kit, been looking into it for a while, just a little to pricey... especially $1000 extra for ball-bearing turbos. That puts you at 8795 without installation... but it would be worth it for those types of gains.
 

·
Premium Member
Joined
·
12,469 Posts
Julian...are you going to be coupling the SFR "coffin" aluminum intake manifold with these kits?
 

·
Registered
Joined
·
4,008 Posts
RAEDY TO GET BASHED?
Why would I get bashed?

I'm not implying that MRC is selling them for too much, SFR/SSR is selling them for around the same price.

The kit is just too much money for what you get (or don't get) IMO.

I've had some very knowledgable car people price the components of the kit back when I wanted it (last year) and most of them said no more than $4,000 for everything. That's a **** of a profit. I'm thinking that most of the profits that these turbo kit companies are setting are due to them wanting to get money back for the R&D.

Personally, I think if someone would use quality components and not make the first 50-100 customers foot the R&D bill, they would sell alot, JMO. Everyone should also understand that there is a market adjustment, since there aren't near as many 350Z owners that will modify their car with a turbo kit, as there are Civic owners that will modify their car with a turbo kit.
 

·
Registered
Joined
·
4,008 Posts
:jawdrop: thats amazing. 1 question y does the G35 have 2 intecoolers. space?
Airflow. As Josh mentioned, the G35 has two grilles that are oddly shaped, so SFR engineered the FMICs to fit in those spaces. I think you can get a single FMIC from them if you already have or will be getting an aftermarket front bumper.
 

·
Registered
Joined
·
10 Posts
Why would I get bashed?

I'm not implying that MRC is selling them for too much, SFR/SSR is selling them for around the same price.

The kit is just too much money for what you get (or don't get) IMO.

I've had some very knowledgable car people price the components of the kit back when I wanted it (last year) and most of them said no more than $4,000 for everything. That's a **** of a profit. I'm thinking that most of the profits that these turbo kit companies are setting are due to them wanting to get money back for the R&D.

Personally, I think if someone would use quality components and not make the first 50-100 customers foot the R&D bill, they would sell alot, JMO. Everyone should also understand that there is a market adjustment, since there aren't near as many 350Z owners that will modify their car with a turbo kit, as there are Civic owners that will modify their car with a turbo kit.

You should have a look at the parts that are included in the system and how much they really cost.There is no way you are going to have someone build this SYSTEM for you for $4000! We use qaulity components from reputable companies like Turbonetics/Spearco,Tial,Burns,etc.........The parts we fabricate are hand crafted here in America with the finest materials and that isnt cheap.Then there is the fact that you can get it as a pre-tuned out of the box system that delivers lots of reliable power on completely stock motors.Add a one year no hassle warranty(everything is covered) on top of that and you get alot for the money.MRC sees this and is why they have become a distributor.
 

·
Registered
Joined
·
1,955 Posts
Discussion Starter · #18 ·
On top of what Tim said, we love the fact that the turbos are upgradeable or downgradable depending on your power needs.But as it sits the turbos are good for 1100hp.. :shiftdrive:
 

·
Registered
Joined
·
5,437 Posts
On top of what Tim said, we love the fact that the turbos are upgradeable or downgradable depending on your power needs.But as it sits the turbos are good for 1100hp.. :shiftdrive:

If I was gonna go for the 1000 hp mark, I'd do it with this kit. A Hennessey Viper kit costs around 1/4mil for the kit and the car. With this, I'd bet you could install the kit with a BBK and suspension work as well as clutch and everything else needed for no more than $50K. And run right next to million dollar cars. Simply amazing.
 

·
Registered
Joined
·
16,332 Posts
It is really simple economics. You cannot simply price the components and know what it is costing SFR. R&D costs ALOT. This happens in every industry. Look at CPU chips for computers. They are intoducing new ones every 4-6 months at around 7-800 $. After the guys who must have things first buy a few, the price drops by half. Prices will drop over time, but it will be a long time.

However, from a marketing perspective it would be smart to get 20-30 kits out there for dirty cheap and let the customers push the product.

If it was my company, I would offer like 10 kits at cost to "select" customers, or people you know will push the product for you. Then offer a group buy for 10-15 more kits. Finally raise the price to where you think you want it.

To be honest, I have known about this kit for a long time. But I have never seen anyone mention they have it. The marketting department needs a boost. Look at APS. They showed up on the forums and screamed alot, posted all over the place, and know everyone knows about them.

On the other hand, it depends on your goals. How many kits do you want to sell? Mass production drives cost down.
 
1 - 20 of 35 Posts
Top