RE: 4-tec really hitting 70?  
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RE: 4-tec really hitting 70? - 11/14/2006 6:19:48 AM   
Banana Turbo


 

Posts: 244
Joined: 9/23/2006
From: Birmingham, BC, YEMEN
Status: offline 		Miami RC,

It was more about the engine that powers the jato.

The 3.3 .15 and how fast it makes the new 4 tec and jato go.

Its all on the same principle's. You have to modify and tune the engine. I dont know if its easy to modify. But the way TRAXXAS sell it sounds pretty modified. You can read about it.

This is my favorite sentence in how they describe the engine.

"innovative porting that previously would only be found on the most exotic, modified racing engines."
http://www.traxxas.com/index.htm

If you ask me both the jato and the 4 tec are "purpose built go fast in a straight line" type cars. Given enough room and geared to the hilt there is no reason why they cant get 80mph. I mean look at the 200mph nitros.

But i totally agree with Miami RC if they put a modified .21 in their cars they would be going faster.

(in reply to buckmaster119)
       Post #: 76

RE: 4-tec really hitting 70? - 11/14/2006 7:09:40 AM   
Medrivfast


 

Posts: 939
Joined: 4/29/2005
From: Thousand Oaks, CA, USA
Status: offline 		How is this for a race. I want to race either a Jato or a 4-tec against my Electric TC-4 with a Novak 3.5R BL.

How do you think that race would go?


Please understand, i'm not here to start a flame war. I love Traxxas products. I have a Jato 3.3 myself. I just don't trust anybody near me to drive my Jato for the race.

_____________________________

Revo 3.3 // Revo W/OS18TM // R/C 18T // 1/14 Sportwerks Recoil // TC-4 With Novak Brushless 3.5R // E-Savage// Savage XL

(in reply to Banana Turbo)
       Post #: 77

RE: 4-tec really hitting 70? - 11/16/2006 1:45:13 AM   
BHertz


 

Posts: 31
Joined: 5/1/2005
From: , PA, USA
Status: offline
quote:

ORIGINAL: rushrtr3

I have a hard time believing that the 4-tec 3.3 can reach speeds of 70mph. After seeing what the engine could do in a t-maxx (not much better than the 2.5) I don't think that Traxxas' claims of 70+mph is feasable.


wow you really think that? i thought that there as a signifigant difference between the maxx 2.5/2.5r and 3.3s.

(in reply to rushrtr3)
       Post #: 78

RE: 4-tec really hitting 70? - 11/16/2006 2:12:50 AM   
buckmaster119



Posts: 322
Joined: 10/28/2006
From: Hunting City, ID, USA
Status: offline 		well seriously if you saw a tmaxx with a 3.3 motor and you dont think that motor can do that good in a car... well here lets break it down, t-maxx monster truck with 3.3, well first of all its a MONSTER TRUCK its not made for speed its made for dirt and rocks basically offroad. once you put something like the t-maxx on the street you start to notice that the tires are wiggling insanely, basically slowing the truck down... my point put that big of a motor in a car it is capable of well... 70+ , so if you seriously think it cant perform at 70 mph, you have definetly never owned a traxxas product!!!!!

< Message edited by buckmaster119 -- 11/16/2006 2:14:37 AM >

_____________________________

My Cars: Traxxas Nitro Rustler with 2.5r Motor, Traxxas T-Maxx, Traxxas Stampede and HPI Micro RS4!!!!!!![:)]

(in reply to BHertz)
       Post #: 79

RE: 4-tec really hitting 70? - 11/16/2006 2:19:27 AM   
rushrtr3



Posts: 255
Joined: 3/23/2004
From: Manchester, NH, USA
Status: offline 		Your right I have never owned a traxxas product and never will, plain and simple. But what I have done is driven one and I don't find them the least bit impressive but more of a pain to work with, use and keep running not to mention the fact that they break all the time.

_____________________________

Nitro 3 with an OS .18 CV-RX, HPI Savage SS 4.6
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(in reply to buckmaster119)
       Post #: 80

RE: 4-tec really hitting 70? - 11/16/2006 2:43:45 AM   
buckmaster119



Posts: 322
Joined: 10/28/2006
From: Hunting City, ID, USA
Status: offline 		ok what traxxas product did you drive????and my car has only broken once and it was because of me...

_____________________________

My Cars: Traxxas Nitro Rustler with 2.5r Motor, Traxxas T-Maxx, Traxxas Stampede and HPI Micro RS4!!!!!!![:)]

(in reply to rushrtr3)
       Post #: 81

RE: 4-tec really hitting 70? - 11/16/2006 3:57:06 AM   
rushrtr3



Posts: 255
Joined: 3/23/2004
From: Manchester, NH, USA
Status: offline 		I work at a hobby store so I've seen all of them but have driven all versions of the t-maxx, revo, bandit, stampede and rustler. The only 4-tech i've driven was one with a 2.5r. The origional 2.5 engines and the 3.3 engines are a major pain to tune and keep running right not too mention they overheat like a **** if you use anything but traxxas fuel. I usualy have at least 2 people a week come in with a broken t-maxx, mainly suspension arms and trany rebuilds. Most of the cars that come just need to be tuned properly and that in itself is a big task for most traxxas engines. The only exception is the 2.5r, it's the only one that can keep a decent tune and the temps usualy stay cool. The 3.3 is the worst of them all in my opinion. I've seen enough of these cars and worked with them enough that I know I will never by one for myself.

_____________________________

Nitro 3 with an OS .18 CV-RX, HPI Savage SS 4.6
Evader pro. www.rushedrc.50megs.com (Custom Paintjobs)

(in reply to buckmaster119)
       Post #: 82

RE: 4-tec really hitting 70? - 11/18/2006 4:03:40 AM   
Medrivfast


 

Posts: 939
Joined: 4/29/2005
From: Thousand Oaks, CA, USA
Status: offline 		Traxxas claims 0-60 in 3.1 seconds. But Radio control car action magazine did an article on it and only got 0-60 in 5.0 seconds. I'm not questioning the speed of this car at all. But, what's the real deal about it? It has to be the tires. I can understand they don't hook up that well. But there's a 2 sec discrepancy.

I have the same problem with wheel spin with my team associated TC-4 with a Novak 3.5R BL. The tires spin for at least 10 feet before they hook up.

_____________________________

Revo 3.3 // Revo W/OS18TM // R/C 18T // 1/14 Sportwerks Recoil // TC-4 With Novak Brushless 3.5R // E-Savage// Savage XL

(in reply to rushrtr3)
       Post #: 83

RE: 4-tec really hitting 70? - 11/18/2006 4:09:51 AM   
buckmaster119



Posts: 322
Joined: 10/28/2006
From: Hunting City, ID, USA
Status: offline 		the whole spinning thing is crazy on your tc4!!!!!

_____________________________

My Cars: Traxxas Nitro Rustler with 2.5r Motor, Traxxas T-Maxx, Traxxas Stampede and HPI Micro RS4!!!!!!![:)]

(in reply to Medrivfast)
       Post #: 84

RE: 4-tec really hitting 70? - 11/18/2006 4:38:08 AM   
jdbraden


 

Posts: 3
Joined: 10/18/2006
From: lodi, CA, USA
Status: offline 		i have 2 of the 4 tech 3.3 and both have maxed out at about 75, that is what my spedometer said, but it is very difficult to keep it from going outta control.

(in reply to Cambo)
       Post #: 85

RE: 4-tec really hitting 70? - 11/18/2006 6:07:30 AM   
buckmaster119



Posts: 322
Joined: 10/28/2006
From: Hunting City, ID, USA
Status: offline 		nice, how did you pull that one off???

_____________________________

My Cars: Traxxas Nitro Rustler with 2.5r Motor, Traxxas T-Maxx, Traxxas Stampede and HPI Micro RS4!!!!!!![:)]

(in reply to jdbraden)
       Post #: 86

RE: 4-tec really hitting 70? - 11/18/2006 7:16:01 AM   
Banana Turbo


 

Posts: 244
Joined: 9/23/2006
From: Birmingham, BC, YEMEN
Status: offline 		Medrivfast,

What type of speed do you get out of a novak brushless kit?
And if your wheels did get 100% traction straight away do you think the motor would still have enough tourqe to get the same kind of accelaration?

I have been tempted to go electric but im no good with a soldering iron so havent bothered.

(in reply to buckmaster119)
       Post #: 87

RE: 4-tec really hitting 70? - 11/18/2006 8:24:13 AM   
Medrivfast


 

Posts: 939
Joined: 4/29/2005
From: Thousand Oaks, CA, USA
Status: offline 		I was at the top speed challenge and i saw the Novak guys hit 77 mph in a xxx-s car with stock gearing with the Novak 3.5R BL set-up. They also rear-geared up more and hit 105mph. I'm kinda geared on the low side right now. So my top speed should be about 60 mph. Remember with electric motors you have 100% TQ at wide open throttle. No need for the RPM's to build up like on nitro. I can put foam tires on. But, i'm afraid i have too much torque and that i would eat up my rear diffs.
quote:

ORIGINAL: Banana Turbo

Medrivfast,

What type of speed do you get out of a novak brushless kit?
And if your wheels did get 100% traction straight away do you think the motor would still have enough tourqe to get the same kind of accelaration?

I have been tempted to go electric but im no good with a soldering iron so havent bothered.



_____________________________

Revo 3.3 // Revo W/OS18TM // R/C 18T // 1/14 Sportwerks Recoil // TC-4 With Novak Brushless 3.5R // E-Savage// Savage XL

(in reply to Banana Turbo)
       Post #: 88

RE: 4-tec really hitting 70? - 11/18/2006 5:30:36 PM   
Banana Turbo


 

Posts: 244
Joined: 9/23/2006
From: Birmingham, BC, YEMEN
Status: offline 		Thats pretty fast. How much distance do you need to hit those speeds?

I know electric motors have 100% torque, but as soon as you put any weight on those rpms they drop dramatically.As an example, you can have somthing spinning at 100,000 rpm then when you put a gram of weight on it the rpms fall to about 60,000rpm.
As far as im aware that along with the problem with batterys not holding a charge is whats wrong with electric.

I think i may splash out on a novak brushless system soon.

(in reply to Medrivfast)
       Post #: 89

RE: 4-tec really hitting 70? - 11/19/2006 6:18:55 AM   
Medrivfast


 

Posts: 939
Joined: 4/29/2005
From: Thousand Oaks, CA, USA
Status: offline 		To hit those speeds they where on an actual 1/4 mile drag strip. But, when the guy hit 134 he was