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LS400 Supercharger Project

 
Old 08-28-07, 10:45 AM
  #31  
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Originally Posted by Ca12los69 View Post
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
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Old 08-28-07, 07:58 PM
  #32  
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Originally Posted by Ca12los69 View Post
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?
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Old 08-28-07, 08:04 PM
  #33  
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Originally Posted by PureDrifter View Post
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"?
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Old 08-28-07, 09:26 PM
  #34  
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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  
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Old 08-28-07, 09:34 PM
  #35  
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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  
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Old 08-29-07, 12:02 AM
  #36  
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hmm, whatr ur driveline plans? built auto+tc or 5/6spd conversion?
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Old 08-29-07, 12:05 AM
  #37  
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You're really making progress fast. This thread is great becuase its giving me a chance to learn more and more.
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Old 08-29-07, 07:44 AM
  #38  
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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
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Old 08-29-07, 10:46 AM
  #39  
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sticky nomination maybe?
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Old 08-29-07, 10:46 AM
  #40  
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Originally Posted by Ca12los69 View Post
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.
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Old 08-29-07, 11:05 AM
  #41  
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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?
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Old 08-29-07, 11:49 AM
  #42  
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Originally Posted by Alan D View Post
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.
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Old 08-29-07, 11:58 AM
  #43  
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Originally Posted by Suneet View Post
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.
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Old 08-29-07, 01:23 PM
  #44  
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Originally Posted by Alan D View Post
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.
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Old 08-29-07, 01:46 PM
  #45  
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Originally Posted by akxx View Post
~170ish is typical for 1st gen RWHP.
Interesting. So what is considered typical for the 2.5 gen 98-00?
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