Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #51  
Old 10-25-2020, 06:01 PM
Happy's Avatar
Member
 
Join Date: Jan 2013
Location: Golden Coast/Lake Houston
Posts: 1,578
Happy is on a distinguished road
Quote:
Originally Posted by bcredliner View Post
How much boost are you running? Certainly not 22lbs.
No. Anything above 500hp requires an engine rebuild. $25,000 minimum for blue printing and the whole 9. This option is not for me at this time.

Quote:
I am not interested in time to top speed or top speed capability. That's too fast without a roll cage and way to fast on the street.
I agree, me neither.

Quote:
The reason the benchmark is 0-60 is because that is the standard measurement used to compare performance of vehicles. As examples, the 4.6 0-60 stock time is 6.2. The new X5M Competition stock time to 60 is 3.7-8 seconds.
My goal is the best time from traffic light to traffic light. As far as handling the goal is to be able to take a curve at 30 more than the speed limit with the tires slightly singing.
My goal was to build an E53 that is track capable. I have never been interested in straight line speed.
__________________
02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53

Reply With Quote

Sponsored Links

  #52  
Old 10-25-2020, 07:24 PM
bcredliner's Avatar
Member
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 8,108
bcredliner is on a distinguished road
I've spent countless hours looking at how far I can go with the 4.6. The bottom end of the engine might take it but the transmission and drivetrain won't take near 700HP even if you can find a way to get to 700HP. The stock engine and drivetrain, while conservative, was only designed for an engine generating 340HP and 382TQ. With the mods I am doing now I expect the transmission will fail soon after. I have a source ready to beef it up and increase the torque convertor stall speed. If I keep chasing expensive weakest link failures it will be time to back off on nitrous until it is reliable and then sell it and start over with an X5M.

The X5 is very heavy. Unless top speed is ones goal I think mods need to be torque focused. Torque gets you going and HP keeps you going. Light to light races are usually won in the first 60 feet. I think the best torque curve for an X5 is one that increases very rapidly to peak, stays fairly flat and falls off slowly after HP curve crosses over. When I started I researched rear mounted twin turbos and superchargers. The primary reason I chose nitrous was it was the only route that delivered the torque curve I wanted.
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #53  
Old 10-25-2020, 07:43 PM
Happy's Avatar
Member
 
Join Date: Jan 2013
Location: Golden Coast/Lake Houston
Posts: 1,578
Happy is on a distinguished road
There is plenty of torque with a supercharged M54, provided the vanos upgrade has been performed.

When discussing 600 or 700 hundred horse power with a manual gearbox, I would be inclined to keep my shifts extremely conservative. JMHO..
__________________
02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53

Reply With Quote
  #54  
Old 10-25-2020, 07:54 PM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
Not jumping into the middle of you guys fun, but I will say that it’s all in how you want the power to come on and the purpose of the build...

Back in the day a buddy and I both had foxbody mustangs, mine was an 87, his was an 89. He was running a well built 302 with a kennybell supercharger putting out 520 dyno verified horsepower and I was running a very well built 302 putting out 405 naturally aspirated horsepower, also dyno verified.

Every time we raced (light to light) he stomped me (obviously)... So, when I scrapped the cash together I picked up a 125 hp nitrous worx nitrous system, which in theory put me at 530 hp to his 520 - not enough of a difference to be concerned with honestly - but I can say - he never beat me again. We would come off the line about equal and as his built power... I was gone!

Again - all in what you’re looking for and the purpose of your build. Turbos and superchargers - in my opinion - are “long haul power”, quarter mile type, nitrous does it too but light to light... nitrous is OMG!


Sent from my iPhone using Xoutpost.com
Reply With Quote
  #55  
Old 10-25-2020, 08:29 PM
Happy's Avatar
Member
 
Join Date: Jan 2013
Location: Golden Coast/Lake Houston
Posts: 1,578
Happy is on a distinguished road
Methanol injection and Nitrous installed

Quote:
Originally Posted by Purplefade View Post
Not jumping into the middle of you guys fun, but I will say that it’s all in how you want the power to come on and the purpose of the build...

Back in the day a buddy and I both had foxbody mustangs, mine was an 87.
I had an 87 as well. One of my favorites!

I never had a problem smoking the tires!
__________________
02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53

Reply With Quote
  #56  
Old 10-25-2020, 08:53 PM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
Quote:
Originally Posted by Happy View Post
I had an 87 as well. One of my favorites!

I never had a problem smoking the tires!


Oh man I LOVED my 87, I think back to how stupid I was to sell it.... so much so that I just picked up another black on grey 93 notchback

93 is a 5sp, 306 (bored .30 over) with trickflow heads, ported cobra intake and all the goodies.

I just couldn’t get the performance that I wanted out of my X (for a price that I wanted to spend) so I had to get a new toy - or, another toy as my wife would say

I have a soft spot in my heart for the foxbody mustangs to this day... I’m actually looking at another 93 notchack that is still all stock that my son would love to have one day.


Sent from my iPhone using Xoutpost.com
Reply With Quote
  #57  
Old 10-25-2020, 09:28 PM
Happy's Avatar
Member
 
Join Date: Jan 2013
Location: Golden Coast/Lake Houston
Posts: 1,578
Happy is on a distinguished road
Methanol injection and Nitrous installed

Quote:
Originally Posted by Purplefade View Post
Oh man I LOVED my 87, I think back to how stupid I was to sell it.... so much so that I just picked up another black on grey 93 notchback

93 is a 5sp, 306 (bored .30 over) with trickflow heads, ported cobra intake and all the goodies.

I just couldn’t get the performance that I wanted out of my X (for a price that I wanted to spend) so I had to get a new toy - or, another toy as my wife would say

I have a soft spot in my heart for the foxbody mustangs to this day... I’m actually looking at another 93 notchack that is still all stock that my son would love to have one day.
I got my 87’ and it stunk like fuel. Bad fuel cell, if you know what I mean. My Stang was awesome!

My bank account and I go round after round with my E53.
__________________
02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53

Reply With Quote
  #58  
Old 10-25-2020, 09:38 PM
Happy's Avatar
Member
 
Join Date: Jan 2013
Location: Golden Coast/Lake Houston
Posts: 1,578
Happy is on a distinguished road
Methanol injection and Nitrous installed

Quote:
Originally Posted by bcredliner View Post
I've spent countless hours looking at how far I can go with the 4.6. The bottom end of the engine might take it but the transmission and drivetrain won't take near 700HP even if you can find a way to get to 700HP.
BC, there has to be a way to build it!

Make sure you take a look at your main bearings!
__________________
02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53

Reply With Quote
  #59  
Old 10-25-2020, 09:49 PM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
Quote:
Originally Posted by Happy View Post
My bank account and I go round after round with my E53.

Ha - I know that feeling! I just pulled my rear calipers to paint them blue and found the bottom bolt on the passenger side caliper broken off! Thank goodness it was just the head and the shank stayed in the caliper or it would have been catastrophic! It’s totally a love hate... mainly me hating that I love it so much!



Sent from my iPhone using Xoutpost.com
Reply With Quote
  #60  
Old 10-25-2020, 09:53 PM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
Quote:
Originally Posted by Happy View Post
BC, there has to be a way to build it!

Make sure you take a look at your main bearings!


I wonder if you could pull the shafts and diff gears and have the shaft heads cut back and say “41” spline ends welded on and “41” spline diff gears cut - would cost a pretty penny for sure but I’m sure would add some strength... but there’s still the trans and transfer case to contend with... and I’m sure any mods to it would cost more than another good used E53

Never opened the bottom end of one yet, but I’d be curious if you could main girdle a 4.4/4.6, hmmm


Sent from my iPhone using Xoutpost.com
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 02:53 AM.
vBulletin, Copyright 2026, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.