What happened to the Motordyne Engineering 3/8" plenum spacers?
Former G35driver Vendor
iTrader: (23)
Joined: Jul 2004
Posts: 3,054
Likes: 85
From: Los Angeles California
Originally Posted by Chico
I have an '05 Sedan RWD Auto. Which spacer do you recommend for my car? I'm a little confused with all the different sizes.
Also, what are the realistic HP gains that I can expect?
Thank You.
Also, what are the realistic HP gains that I can expect?
Thank You.
Or you can go with the 1/2" without the engine cover.
The spacers perform differently on different cars but generally dyno between 8 HP to 13 HP. The 1/2" spacer will produce approximatly 1.5 HP more than the 5/16".
Former G35driver Vendor
iTrader: (23)
Joined: Jul 2004
Posts: 3,054
Likes: 85
From: Los Angeles California
Originally Posted by dentalstud
But will it work with my 3/8" spacer? 

The Motordyne Iso Thermal plenum spacers are being installed and tested on many cars right now. More details will emerge when the data becomes available.
after a few days with my 3/8 spacer i'm starting to feel the performance difference and i'm sure your new product will be worthwhile as well. Any word on ballpark pricing and performance increases? (hp? torque?, lower mid upper rpm ranges?)
thanks
thanks
Former G35driver Vendor
iTrader: (23)
Joined: Jul 2004
Posts: 3,054
Likes: 85
From: Los Angeles California
The first pre/post dyno to come in was performed a couple days ago on a 350Z in Australia. The 5/16" Motordyne Iso Thermal spacer...
13.4 HP @ 6300
and
21.8 HP @ 7100.
I don't want to say they will all produce this level of gain but that's what he measured under a controlled dyno. ...And he will redyno again to confirm the numbers.
He is also reporting that his plenum is running much cooler. Here's a small segment of what he wrote.
As you can tell, he's pretty happy with it.
It's almost ready for general release!!!
.
13.4 HP @ 6300
and
21.8 HP @ 7100.
I don't want to say they will all produce this level of gain but that's what he measured under a controlled dyno. ...And he will redyno again to confirm the numbers.
He is also reporting that his plenum is running much cooler. Here's a small segment of what he wrote.
> Also I would like to update you on the driving experience I had (around
> 15 minutes) after I switched off the coolant valve controller + after
> putting the silicone intake pipe... it was BRILLIANT!!! after a good 15
> minutes of pushing all the way to the 7200rpm redline more than a hand
> full of times, I popped the hood and amazingly that the throttle body +
> intake tube + airbox were not hot at all, just a bit warm only.... I
> couldn't really believe that though... I can basically put my hand or
> even my face on top of those components... I gotta tell you.... this
> definitely helps reducing the intake temperature though!!!
> 15 minutes) after I switched off the coolant valve controller + after
> putting the silicone intake pipe... it was BRILLIANT!!! after a good 15
> minutes of pushing all the way to the 7200rpm redline more than a hand
> full of times, I popped the hood and amazingly that the throttle body +
> intake tube + airbox were not hot at all, just a bit warm only.... I
> couldn't really believe that though... I can basically put my hand or
> even my face on top of those components... I gotta tell you.... this
> definitely helps reducing the intake temperature though!!!
It's almost ready for general release!!!
.
Former G35driver Vendor
iTrader: (23)
Joined: Jul 2004
Posts: 3,054
Likes: 85
From: Los Angeles California
It won't add that to the gains you are already getting with the spacer. The gains are shown with the spacer and a thermal isolation manager to let your plenum run much cooler.
The Motordyne Iso Thermal plenum spacer and the Motordyne Iso Thermal kit are different packages. The Iso thermal kit is only for thermal management. The Iso Thermal plenum spacer is a plenum spacer kit with the thermal manager added.
Tony
The Motordyne Iso Thermal plenum spacer and the Motordyne Iso Thermal kit are different packages. The Iso thermal kit is only for thermal management. The Iso Thermal plenum spacer is a plenum spacer kit with the thermal manager added.
Tony
Tony...just to confirm the new Motordyne Iso Thermal plenum spacer is not officially available (dont see it on your website).
I was just about to ask you about making these things out of phenolic material.... but I did a search first and found this...
I have used phenolic spacers in FI and NA applications and would love to see it on the G35.
very anxious.
I was just about to ask you about making these things out of phenolic material.... but I did a search first and found this...
I have used phenolic spacers in FI and NA applications and would love to see it on the G35.
very anxious.
Originally Posted by Hydrazine
Yes! It will work with the 3/8" spacer no problem. I made special provisions to accomodate the numerous customers with 3/8" plenum spacers.
I have your 3/8” spacer but have not installed it yet. I look forward to seeing more info on the kit.
Originally Posted by Hydrazine
It won't add that to the gains you are already getting with the spacer. The gains are shown with the spacer and a thermal isolation manager to let your plenum run much cooler.
The Motordyne Iso Thermal plenum spacer and the Motordyne Iso Thermal kit are different packages. The Iso thermal kit is only for thermal management. The Iso Thermal plenum spacer is a plenum spacer kit with the thermal manager added.
Tony
The Motordyne Iso Thermal plenum spacer and the Motordyne Iso Thermal kit are different packages. The Iso thermal kit is only for thermal management. The Iso Thermal plenum spacer is a plenum spacer kit with the thermal manager added.
Tony
I was just wondering when can we purchase the Motordyne Iso Thermal Kit?
Thanks,
David
Former G35driver Vendor
iTrader: (23)
Joined: Jul 2004
Posts: 3,054
Likes: 85
From: Los Angeles California
HI David,
You can purchase them now even though they are not listed on the web site. When you make the paypal payment, be sure to mention that you want the Motordyne Iso Thermal spacer and I'll put it in.
I will include the extra hardware at no extra cost to you. ...Anyone can purchase them at the current price until the website is updated to show the new Iso Thermal spacers and upgrades.
The website will be updated soon with a new look and with all the new products available.
You can purchase them now even though they are not listed on the web site. When you make the paypal payment, be sure to mention that you want the Motordyne Iso Thermal spacer and I'll put it in.
I will include the extra hardware at no extra cost to you. ...Anyone can purchase them at the current price until the website is updated to show the new Iso Thermal spacers and upgrades.
The website will be updated soon with a new look and with all the new products available.
Originally Posted by Hydrazine
HI David,
You can purchase them now even though they are not listed on the web site. When you make the paypal payment, be sure to mention that you want the Motordyne Iso Thermal spacer and I'll put it in.
I will include the extra hardware at no extra cost to you. ...Anyone can purchase them at the current price until the website is updated to show the new Iso Thermal spacers and upgrades.
The website will be updated soon with a new look and with all the new products available.
You can purchase them now even though they are not listed on the web site. When you make the paypal payment, be sure to mention that you want the Motordyne Iso Thermal spacer and I'll put it in.
I will include the extra hardware at no extra cost to you. ...Anyone can purchase them at the current price until the website is updated to show the new Iso Thermal spacers and upgrades.
The website will be updated soon with a new look and with all the new products available.


