ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   ZPOST > BMW Z4 Technical Talk > Engine, Exhaust, Drivetrain Modifications
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      01-22-2008, 04:15 PM   #67
pbdm4k
Lieutenant Colonel
pbdm4k's Avatar
Canada
74
Rep
1,689
Posts

Drives: 2010 335d
Join Date: May 2007
Location: North of the Border

iTrader: (3)

Quote:
Originally Posted by karmasabish View Post
you need to calm down and actually read the post.

A) i never mentioned rice
B) i'm the one saying that performance mods are true mods, so what exactly are you so offended by?
Misunderstanding on my part.
I interpreted your post as saying people on this board only do cosmetic stuff to their cars.

Performance parts for our cars aren't plentiful and the ones available generally come at a high price, so seeing what could be a decent gain for what it is, a low cost air scoop would be awesome.

To Reach:
Bottom line for products like ducts or intakes, the goal is to increase airflow to the engine. So how is my comparison off base? Ducts are used on the M's to cool the brakes and Dinan makes a pretty penny charging $300 for a molded piece of plastic to function like what RPI is making at what we hope will be significantly less than the Dinan version.

There may be a significant difference between a duct like this and a fully prepped race car with all its aerodynamics worked out, but bottom line, the goal is to aide in improving air flow.
Appreciate 0
      01-23-2008, 09:36 AM   #68
Reach
gone baby gone
381
Rep
1,052
Posts

Drives: 2016 F80
Join Date: Nov 2007
Location: Location, Location.

iTrader: (0)

Quote:
Originally Posted by pbdm4k View Post
Bottom line for products like ducts or intakes, the goal is to increase airflow to the engine. So how is my comparison off base? Ducts are used on the M's to cool the brakes and Dinan makes a pretty penny charging $300 for a molded piece of plastic to function like what RPI is making at what we hope will be significantly less than the Dinan version.
1. You compared a race car's intake system to a pre-filter air scoop for a street car.
2. Everyone knowns Dinan parts are a ripoff. If more money means it must be better, I have a cell phone for you.

I just thought it was funny man, that's all. No hate. There's just no comparison.
Appreciate 0
      01-23-2008, 10:46 AM   #69
pbdm4k
Lieutenant Colonel
pbdm4k's Avatar
Canada
74
Rep
1,689
Posts

Drives: 2010 335d
Join Date: May 2007
Location: North of the Border

iTrader: (3)

Quote:
Originally Posted by Reach View Post
1. You compared a race car's intake system to a pre-filter air scoop for a street car.
2. Everyone knowns Dinan parts are a ripoff. If more money means it must be better, I have a cell phone for you.

I just thought it was funny man, that's all. No hate. There's just no comparison.
You still need to elaborate how its a bad comparison. As far as street cars are concerned, their technology filters down from a manufacturer's racing division. Technology there is eventually seen in your daily driver. Heavy use of aerodynamic tuning and carbon fibre or other lightweight material such as aluminium alloys also make their way into street cars.

Take for example the first generation Audi TT. It had the tendency for the rear to slip out at high speeds causing spin outs and car crashes. Audi's solution was a rear spoiler that also found its way onto North American cars that would never (legally) see that speed for it to be of concern. Yet aerodynamic tuning is still an important part of your daily driver.

So, yeah, no hate, but why is it a bad comparison?
Appreciate 0
      01-23-2008, 05:31 PM   #70
RPIpower
Captain
RPIpower's Avatar
49
Rep
857
Posts

Drives: F97 X3M, G80 M3
Join Date: Aug 2007
Location: PA

iTrader: (0)

Although we saw a gain during our initial dyno test of the scoop (4-5whp), I think we can further improve on the airflow. We will also be testing the ram air set up with an aftermarket filter to see if it allows better breathing.

Price for the scoop: $100-125
Price for scoop+filter: $165-$185

Skid plates will be available to ship in 1-2 weeks. The price for the skid plates will be $75 per set. These are not painted or powder coated as we felt, the first time you scrape something bad, it will take the coating off anyways. Laidback might not want to hear this but our production version of the skid plates are double the thickness of the one we put on his. So, you can all tell him, "Mine is bigger than yours."

Its always our priority and passion to create, design and offer quality/funtional products to our customers....AT A GREAT VALUE. We feel that the ram air set up at the $100 range will out perform many competitors products both in performance and in value (hp/$ ratio).
Appreciate 0
      01-23-2008, 07:17 PM   #71
Dammmittt
My favorite sign.
Dammmittt's Avatar
South Korea
167
Rep
4,333
Posts

Drives: 2007 M Coupe
Join Date: Dec 2006
Location: Der Autobahnen

iTrader: (0)

If I can suggest something...you might want to try a scoop that isn't as perpendicular to the airflow...alot of air is going to "reflect" away. At low subsonic speeds you want gentle curves...to help corral the air and send it in the direction you want to go...

I understand the constraints you got for space...just trying to help, cuz I want in on the scoop action too!
__________________


07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int.

Best Website EVER!
Appreciate 0
      01-23-2008, 08:19 PM   #72
Irish Bimmer
Private First Class
6
Rep
142
Posts

Drives: M Coupe
Join Date: Oct 2007
Location: Jax, FL

iTrader: (0)

Will using the filter upgrade that will be paired with the scoop will the engine be more audible? I suppose that it doesn't make much sense that it would, but perhaps you guys would know how to make this possible.
Appreciate 0
      01-23-2008, 11:11 PM   #73
laidback
Lieutenant Colonel
134
Rep
1,709
Posts

Drives: M's
Join Date: Jul 2007
Location: SoCal

iTrader: (0)

LOL...I knew you like the scoop


Quote:
Originally Posted by Dammmittt View Post
If I can suggest something...you might want to try a scoop that isn't as perpendicular to the airflow...alot of air is going to "reflect" away. At low subsonic speeds you want gentle curves...to help corral the air and send it in the direction you want to go...

I understand the constraints you got for space...just trying to help, cuz I want in on the scoop action too!
WTF? i want those too
Quote:
Originally Posted by RPIpower View Post
Although we saw a gain during our initial dyno test of the scoop (4-5whp), I think we can further improve on the airflow. We will also be testing the ram air set up with an aftermarket filter to see if it allows better breathing.

Price for the scoop: $100-125
Price for scoop+filter: $165-$185

Skid plates will be available to ship in 1-2 weeks. The price for the skid plates will be $75 per set. These are not painted or powder coated as we felt, the first time you scrape something bad, it will take the coating off anyways. Laidback might not want to hear this but our production version of the skid plates are double the thickness of the one we put on his. So, you can all tell him, "Mine is bigger than yours."

Its always our priority and passion to create, design and offer quality/funtional products to our customers....AT A GREAT VALUE. We feel that the ram air set up at the $100 range will out perform many competitors products both in performance and in value (hp/$ ratio).
Eloy (RPI) ordered the BMC filter for me and we'll see if the sound changes....

Quote:
Originally Posted by Irish Bimmer View Post
Will using the filter upgrade that will be paired with the scoop will the engine be more audible? I suppose that it doesn't make much sense that it would, but perhaps you guys would know how to make this possible.
Btw couple of updates for you guys...

Since it was raining pretty bad today I took the m coupe and drove it for atleast 80 miles and it was pouring and the car performed well (i was thinking water might seep in but to my surprise it's pretty dry in there...so another win for the scoops!

And also I emailed Eloy this morning and I told him if i'll organize a grp buy for the skid plates if he's interested in giving us a discount and after alot of asian persuasion he said he'll do the SKID PLATES for $65 and since i got the prototype i want the real deal...so here it goes GROUP BUY TIME!

Skid plates....

1. Laidback
2.
Appreciate 0
      01-23-2008, 11:17 PM   #74
Brucewonder
Lieutenant Colonel
Brucewonder's Avatar
32
Rep
1,541
Posts

Drives: 2011 E92 M3 yea boi
Join Date: Nov 2007
Location: Socal

iTrader: (4)

i dont want the skid plates...i want a gb for the scoop!!!!!
__________________
2011.5 E92 ///M3 SSII/FR
Appreciate 0
      01-23-2008, 11:25 PM   #75
kav
Lieutenant
Canada
47
Rep
401
Posts

Drives: Z4M
Join Date: Oct 2007
Location: Canada

iTrader: (1)

I'm in for the skid plates and scoop, if a GB can be arranged.
Appreciate 0
      01-24-2008, 12:00 AM   #76
laidback
Lieutenant Colonel
134
Rep
1,709
Posts

Drives: M's
Join Date: Jul 2007
Location: SoCal

iTrader: (0)

Then you can't get the scoops! j/k i'll talk to eloy about it tomorrow about the scoops...
Quote:
Originally Posted by teammojo View Post
i dont want the skid plates...i want a gb for the scoop!!!!!
1. Laidback
2. Kav
3.

Quote:
Originally Posted by kav View Post
I'm in for the skid plates and scoop, if a GB can be arranged.
Appreciate 0
      01-24-2008, 06:44 AM   #77
RussRamz
M Slut
RussRamz's Avatar
United_States
18
Rep
564
Posts

Drives: 2011 M3 Coupe Mineral White
Join Date: Sep 2007
Location: Adenau, GE via 3 years in dreadful El Paso, TX

iTrader: (0)

Quote:
Originally Posted by Dammmittt View Post
If I can suggest something...you might want to try a scoop that isn't as perpendicular to the airflow...alot of air is going to "reflect" away. At low subsonic speeds you want gentle curves...to help corral the air and send it in the direction you want to go...

I understand the constraints you got for space...just trying to help, cuz I want in on the scoop action too!
We could always cut a NACA duct in the hood and get air directly rammed into the airbox.
__________________
You have to be 100% behind someone before you can stab them in the back.

David Brent
Appreciate 0
      01-24-2008, 09:41 AM   #78
Dammmittt
My favorite sign.
Dammmittt's Avatar
South Korea
167
Rep
4,333
Posts

Drives: 2007 M Coupe
Join Date: Dec 2006
Location: Der Autobahnen

iTrader: (0)

Quote:
Originally Posted by RussRamz View Post
We could always cut a NACA duct in the hood and get air directly rammed into the airbox.
Yeah, but I doubt that would look good...
__________________


07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int.

Best Website EVER!
Appreciate 0
      01-24-2008, 10:16 AM   #79
pbdm4k
Lieutenant Colonel
pbdm4k's Avatar
Canada
74
Rep
1,689
Posts

Drives: 2010 335d
Join Date: May 2007
Location: North of the Border

iTrader: (3)

Quote:
Originally Posted by laidback View Post
Then you can't get the scoops! j/k i'll talk to eloy about it tomorrow about the scoops...

1. Laidback
2. Kav
3.
I'm all for a scoop group buy as well.

Is RPI still going to make skid plates for the non M's?
Appreciate 0
      01-24-2008, 03:26 PM   #80
laidback
Lieutenant Colonel
134
Rep
1,709
Posts

Drives: M's
Join Date: Jul 2007
Location: SoCal

iTrader: (0)

I talked to Eloy and yes but he has to fabricate one...i'll see the eta on those...
Quote:
Originally Posted by pbdm4k View Post
I'm all for a scoop group buy as well.

Is RPI still going to make skid plates for the non M's?
Appreciate 0
      01-24-2008, 03:31 PM   #81
laidback
Lieutenant Colonel
134
Rep
1,709
Posts

Drives: M's
Join Date: Jul 2007
Location: SoCal

iTrader: (0)

Guys RPI will have an open house... on Feb. 9th so all let's go!
http://www.m5board.com/vbulletin/sho...d.php?t=110795
Appreciate 0
      01-24-2008, 06:44 PM   #82
AtoB
Major
AtoB's Avatar
United_States
112
Rep
1,262
Posts

Drives: Z4M
Join Date: Jan 2007
Location: Boston

iTrader: (3)

can you tell us about the installation procedure on the scoop?
Appreciate 0
      01-24-2008, 08:49 PM   #83
laidback
Lieutenant Colonel
134
Rep
1,709
Posts

Drives: M's
Join Date: Jul 2007
Location: SoCal

iTrader: (0)

It's pretty easy no need to get the front bumper ...just take the front grill off and the stock intake...and install the rpi scoop...i'm sure RPI will give the necessary instruction hardware...and will guide you on the install just like they helped out the e60/ e63 M guys...



Quote:
Originally Posted by AtoB View Post
can you tell us about the installation procedure on the scoop?

Last edited by laidback; 01-25-2008 at 04:08 PM..
Appreciate 0
      01-24-2008, 09:50 PM   #84
ramone23456
New Member
0
Rep
9
Posts

Drives: 2007 M Roadster
Join Date: Dec 2007
Location: New Jersey

iTrader: (0)

Please add me to the list for the plates.
Thanks.
Appreciate 0
      01-25-2008, 12:08 AM   #85
buymenow00
New Member
3
Rep
26
Posts

Drives: 2011.5 M3 E90 Alpine/Black
Join Date: Jan 2008
Location: SoCal

iTrader: (0)

I would also like a set of skid plates. Please add me to the list! (Wish you had made these before I scraped my "fangs" a hundred times!)

Thanks!
Appreciate 0
      01-25-2008, 01:12 AM   #86
laidback
Lieutenant Colonel
134
Rep
1,709
Posts

Drives: M's
Join Date: Jul 2007
Location: SoCal

iTrader: (0)

No problem...will do
Quote:
Originally Posted by ramone23456 View Post
Please add me to the list for the plates.
Thanks.

Oh i thought of these and good thing RPI did it asap...your "fangs" will thank you for giving them the skid plates....


install on the skid plates is also fairly easy and I ask Eloy to include an instruction along with the skid plates

Quote:
Originally Posted by buymenow00 View Post
I would also like a set of skid plates. Please add me to the list! (Wish you had made these before I scraped my "fangs" a hundred times!)

Thanks!
Btw guys there is also a grp buy on bimmerfest for the RPI skid plates and so far there are @ 11 guys for the skid plates

1. Laidback
2. Kav
3. ramone23456
4. buymenow00
5.
Appreciate 0
      01-25-2008, 07:34 AM   #87
AtoB
Major
AtoB's Avatar
United_States
112
Rep
1,262
Posts

Drives: Z4M
Join Date: Jan 2007
Location: Boston

iTrader: (3)

Quote:
Originally Posted by laidback View Post
No problem...will do


Oh i thought of these and good thing RPI did it asap...your "fangs" will thank you for giving them the skid plates....


install on the skid plates is also fairly easy and I ask Eloy to include an instruction along with the skid plates



Btw guys there is also a grp buy on bimmerfest for the RPI skid plates and so far there are @ 11 guys for the skid plates

1. Laidback
2. Kav
3. ramone23456
4. buymenow00
5.
i'm up for a group buy on scoops.... plates i'm not sold on yet.
Appreciate 0
      01-25-2008, 04:09 PM   #88
laidback
Lieutenant Colonel
134
Rep
1,709
Posts

Drives: M's
Join Date: Jul 2007
Location: SoCal

iTrader: (0)

Come on your front bumper will love them
Quote:
Originally Posted by AtoB View Post
i'm up for a group buy on scoops.... plates i'm not sold on yet.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 03:04 PM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST