Whipple Supercharger
Thread Starter
Driver
Joined: May 2006
Posts: 196
Likes: 2
From: Brisbane
Been a bit slack getting back here to do some updates, but as some of you will know it is on and running and as a result of an engine fire-my fault- have had some minor issues getting it to run properly.
Bit the bullet on Friday and decided to put it on the dyno to see what and if some issues could be sorted. The biggest problem was not enough fuel from about 4000 revs the afr dropped below 10, so no power runs were done. Adjusting the rising rate fuel reg only helped it run a bit better, so I have order a Walbro pump and will install it later, then back to the dyno.
couple of pics.
Bit the bullet on Friday and decided to put it on the dyno to see what and if some issues could be sorted. The biggest problem was not enough fuel from about 4000 revs the afr dropped below 10, so no power runs were done. Adjusting the rising rate fuel reg only helped it run a bit better, so I have order a Walbro pump and will install it later, then back to the dyno.
couple of pics.
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Lexus NX 350h: A Fuel-Sipping Secret Hot Hatch???
Michael S. Palmer
5 Best & 5 Worst Lexus Daily Drivers
Joe Kucinski
Top 5 Hottest Lexus & Toyotas in 2026 (Hardest To Buy)
Brett Foote
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks
Michael S. Palmer
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
Thread Starter
Driver
Joined: May 2006
Posts: 196
Likes: 2
From: Brisbane
More efficient pump, more fuel then it should be at 12's where it needs to be.
Thats the theory anyway
Lead Lap
Joined: Oct 2006
Posts: 581
Likes: 0
From: texas
I'm not exactly sure if you are talking about the air to fuel ratio, but it seems that way. Lean ratios mean more air than fuel. So, it would be like 14:1 with 14 parts of air for every 1 part of fuel. With a 10:1 ratio it would be a rich mixture with only 10 parts of air for every 1 part of fuel. So if you are talking about having a 10:1 air to fuel ratio then you are running rich. Which is better starting out with then lean. Then again, I might be confused on what you are saying and could be totally wrong. In that case. Nice setup!
