Build Threads Details on Club Lexus LS400 owner vehicles

LS400 Supercharger Project

Thread Tools
 
Search this Thread
 
Old 08-28-07, 10:45 AM
  #31  
PureDrifter
BahHumBug

iTrader: (10)
 
PureDrifter's Avatar
 
Join Date: Aug 2004
Location: California
Posts: 23,918
Received 94 Likes on 86 Posts
Default

Originally Posted by Ca12los69
Hey drifter....It is an early model (oval inlet) charger 90-93. I went cheap here hoping everything would work...then I will jump to a Magna Charger or twin screw with engine upgrade. I plan on going with water injection or an intercooler that Andrew is making at the moment. He says it will fit perfectly inside the manifold he made. Cant wait to see if and how she runs once I am done.
u gunna port it

ive heard of M90s and M112s making some pretty big gains after being properly ported/rebuilt
Old 08-28-07, 07:58 PM
  #32  
akxx
Lead Lap
iTrader: (1)
 
akxx's Avatar
 
Join Date: Apr 2005
Location: co
Posts: 455
Likes: 0
Received 8 Likes on 6 Posts
Default

Originally Posted by Ca12los69
Thanks for the great answer akxx... I will either go with Mobil 1 or R.P. 5w-30. Here is one more pic before I hit the sack. I had to mess with the Idle Air Control Valve to get the hose to not kink up when I routed it near the firewall. More details on that 2morrow. Enjoy.
Is that a rising rate FPR back there on the driver's side firewall?
Old 08-28-07, 08:04 PM
  #33  
akxx
Lead Lap
iTrader: (1)
 
akxx's Avatar
 
Join Date: Apr 2005
Location: co
Posts: 455
Likes: 0
Received 8 Likes on 6 Posts
Default

Originally Posted by PureDrifter
u gunna port it

ive heard of M90s and M112s making some pretty big gains after being properly ported/rebuilt
Running a ported M90 should provide reduced intake charge temps since it will compress the air more efficiently without adding as much killer heat--in essence you will be getting the benefits of higher boost at lower actual boost levels.

However, I would imagine a ported M90 even at only 6psi will push you beyond what the stock ECU can handle (6psi standard M90 is about the limit), so you'll be looking piggyback at that point.

Now just imagine a ported M90 running a smaller 10psi pulley combined with a simple piggyback (Autronic?) and water injection/intercooler--I believe that is within the capabilities of a stock 1UZ with proper tuning--can anyone say "low 13-sec LS400"?
Old 08-28-07, 09:26 PM
  #34  
Ca12los69
Driver
Thread Starter
 
Ca12los69's Avatar
 
Join Date: Mar 2004
Location: Texas
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
Default

Here is the SuperCharger pulley from Richwood. It is very nicely done with good grip in the groves of the ribs.
Attached Thumbnails LS400 Supercharger Project-dsc01625.jpg  
Old 08-28-07, 09:34 PM
  #35  
Ca12los69
Driver
Thread Starter
 
Ca12los69's Avatar
 
Join Date: Mar 2004
Location: Texas
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
Default

Here is the latest pic.
Yes that is a rising rate fuel pressure regulator... Many say it was not needed, but I plan on boost up to 10lbs.
2morrow I have to find out how to run the upper radiator hose and I need to make a run down to the store to buy some more right angle hose joints for some vacuum lines.
I plan I getting the blower ported as soon as I know this setup is working well. I plan on using the SMT6 or 7 piggyback ECU. All that remains is the cooling system which I need to research.
Attached Thumbnails LS400 Supercharger Project-dsc01658.jpg  
Old 08-29-07, 12:02 AM
  #36  
PureDrifter
BahHumBug

iTrader: (10)
 
PureDrifter's Avatar
 
Join Date: Aug 2004
Location: California
Posts: 23,918
Received 94 Likes on 86 Posts
Default

hmm, whatr ur driveline plans? built auto+tc or 5/6spd conversion?
Old 08-29-07, 12:05 AM
  #37  
Suneet
Lexus Champion
 
Suneet's Avatar
 
Join Date: Mar 2002
Location: California
Posts: 1,833
Likes: 0
Received 4 Likes on 2 Posts
Default

You're really making progress fast. This thread is great becuase its giving me a chance to learn more and more.
Old 08-29-07, 07:44 AM
  #38  
steveski
Lexus Champion
 
steveski's Avatar
 
Join Date: Oct 2005
Location: TX
Posts: 1,884
Likes: 0
Received 4 Likes on 4 Posts
Default

Absolutely the progress is fast and details are even better. Thanks for the continued posts - this will be a popular thread since so many folks would like to do the same. Thanks
Old 08-29-07, 10:46 AM
  #39  
LiCelsior
Retired

iTrader: (32)
 
LiCelsior's Avatar
 
Join Date: May 2007
Location: NY
Posts: 12,362
Received 17 Likes on 15 Posts
Default

sticky nomination maybe?
Old 08-29-07, 10:46 AM
  #40  
akxx
Lead Lap
iTrader: (1)
 
akxx's Avatar
 
Join Date: Apr 2005
Location: co
Posts: 455
Likes: 0
Received 8 Likes on 6 Posts
Default

Originally Posted by Ca12los69
Here is the latest pic.
Yes that is a rising rate fuel pressure regulator... Many say it was not needed, but I plan on boost up to 10lbs.
2morrow I have to find out how to run the upper radiator hose and I need to make a run down to the store to buy some more right angle hose joints for some vacuum lines.
I plan I getting the blower ported as soon as I know this setup is working well. I plan on using the SMT6 or 7 piggyback ECU. All that remains is the cooling system which I need to research.
If you flip the upper rad hose front/back, does it provide the necessary clearance for the S/C pulley belt?

I don't think intercooling/injection will do you much good at 6psi since intake temps aren't that high since the blower is running in a sweet spot, efficiency wise. Once you go 10psi you'll definitely need to cool those charge temps.
Old 08-29-07, 11:05 AM
  #41  
Alan D
Driver
 
Alan D's Avatar
 
Join Date: Jun 2006
Location: TX
Posts: 118
Likes: 0
Received 0 Likes on 0 Posts
Default

I love the idea of the project and the install looks excellent. Only thing that is surprising is the 250 rwhp estimate. Sounds low to me if adding a supercharger. What factor are you using for driveline loss? How much hp at the motor are you estimating?
Old 08-29-07, 11:49 AM
  #42  
Suneet
Lexus Champion
 
Suneet's Avatar
 
Join Date: Mar 2002
Location: California
Posts: 1,833
Likes: 0
Received 4 Likes on 2 Posts
Default

Originally Posted by Alan D
I love the idea of the project and the install looks excellent. Only thing that is surprising is the 250 rwhp estimate. Sounds low to me if adding a supercharger. What factor are you using for driveline loss? How much hp at the motor are you estimating?
250 rwhp would be almost a 50% increase in power from stock. I don't think thats a bad estimate.
Old 08-29-07, 11:58 AM
  #43  
Alan D
Driver
 
Alan D's Avatar
 
Join Date: Jun 2006
Location: TX
Posts: 118
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Suneet
250 rwhp would be almost a 50% increase in power from stock. I don't think thats a bad estimate.
What is the hp back then? 250 at the motor? So are you saying rwhp is 170 on the 1st generation? That's why I was asking what figure he was using to calculate driveline loss.
Old 08-29-07, 01:23 PM
  #44  
akxx
Lead Lap
iTrader: (1)
 
akxx's Avatar
 
Join Date: Apr 2005
Location: co
Posts: 455
Likes: 0
Received 8 Likes on 6 Posts
Default

Originally Posted by Alan D
What is the hp back then? 250 at the motor? So are you saying rwhp is 170 on the 1st generation? That's why I was asking what figure he was using to calculate driveline loss.
~170ish is typical for 1st gen RWHP.
Old 08-29-07, 01:46 PM
  #45  
Alan D
Driver
 
Alan D's Avatar
 
Join Date: Jun 2006
Location: TX
Posts: 118
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by akxx
~170ish is typical for 1st gen RWHP.
Interesting. So what is considered typical for the 2.5 gen 98-00?


Quick Reply: LS400 Supercharger Project



All times are GMT -7. The time now is 01:04 AM.