WALT
Well I get the car back today not happy puts out 315 HP & 400 TQ thats 20 TQ more and 25 less HP? He got most of the stumble out ,but it falls off at the hi end I dont know what to do except may get a second appenion.
WALT
Well here I go again,my Buddy had his motor built here in Sacramento, called [MOTOR MACHINE] have a appointment next Tue. Dam tired of putting $ out.
jeepsr4ever
Carb or timing for sure. You should put out DOUBLE those numbers.
390spirit
is it actually building boost at all, its not by the sounds of it!
even only 5# of boost should pick up the HP by 75-100HP
WALT
It starts backfiring Stan ploted it on a chart thinks it will only put out about 6 lbs with this impeller.
WALT
Car is in Motor Machine in Sacramento I have hi hopes Don will concur it.
WALT
Just got a phone call from Don owner of Motor Machine ,he told me I cant work on my car any more,he taped a hole on the super charger outlet ,installed a gauge found a big pressure drop to the carburtor.Using a remote camera found a rag stuffed up in the intercooler,dam I hope he's not pulling my leg {i've been saying that maybe there's maybe a rag is in there jokeing } All I can say what a shop to have in your town .I will let you know the rest of the storry as Paul Harvy would say later . Walt
390spirit
well that would explain a lot Walt......hope its all figured out now, I wanna see that thing run!
Norm
jeepsr4ever
No doubt that engine should be screaming
WALT
Well we got that rag out ,it was mine? Anyway that did not make that much in flow difference. My intercooler is a tube & fin type. Found out a bar/plate flows better? Mine says it flows 750 cfm, the bar/plate shows 1250 cfm ,I ordered one ching ching again.Looking at them thay look like twins. Walt
390spirit
ditch those intercoolers and put a snow performance methanol injection system on that thing
[url]http://www.snowperformance.net/stage-1-boost-cooler.html[/url]
spike
Walt
I am in process of installing Meth kit on my wagon , I made a bung and welded into alum pipe threaded it for injection valve.
Norm
You might want to keep your 750 carb you are trying to sell it has annular boosters that you need and a 750 would probably be a good size for your car with suoercharger.
Goops
WALT
Goops. You lost me Meth kit?
spike
Walt
I meant methanol injection as Norm posted in post above mine . He mentioned Snow but I am using Coolingmist products. Basically just injecting combination of water and methanol to cool airflow.
Goops
WALT
Thank you if this dont work out may try that.I had a 1970 Chev pickup with a small block 400 in it .I built the motor not thinking about com. rato had way to much ,got by using a MSD ping control and water injection and I would add something to the water it was so so,but the nozzels would plug up a lot.
WALT
Well we got the new intercooler on and that helped a little ,but I was hoping for more boost.Intake manifold psi went from 0 to 3 psi was hoping for 6 or so.
spike
Walt
what size pulley are you using? I started with 3.80 then went to 3.47 now 3.33 and will probably go to 2.87. It seems as I fix 1 problem it resets everything else. This is with a 6.2 bottom pulley and 6000 rpm. It will be a good combination once We get it all figured out, problem of being first ones to attempt it .Is your belt slipping?? I made a turnbuckle to adjust alt similar to what Marsh have on there serpentine belt setup and has made it easy to get slippage out of belt. I also went to HD belt Green color and more rigid.
Don;t get to fed up were getting closer to what we expected.
Goops
WALT
USING THE 2.87 PULLY NOW,THAT WAS AT 5,000 RPM, DON DID NOT SEE A INCRESS IN BOOST, DID NOT WANT TO BEAT UP THE MOTOR FOR NOR REASION
Blown7
What is lambda reading during the pull?
WALT
Sorry never heard the term lambda, good for you and your jeep. We are trying to find out why the low boost ? Thinking to much piping onlo 3 lbs.
