13:1 Compression 3.3L cam'n its ass off
- Thread starter zach44102
- Start date
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Im buying a freshly dipped and honed 3.2 and a set of dipped bare heads for a decent price. But Thank you
As Jason said, the pcm can only pull a maximum of 8 degrees of timing due to knock. However, it pulls it 1.5 degrees per event, which means each individual cylinder knock. I have never seen an engine knock on just one cylinder (although its certainly possible) so every time I have seen a Ford pcm pull timing due to knock it has always pulled out the maximum. This results in a very noticeable drop in torque and power right now.
The only possible place where that dyno curve in post 84 had timing pulled would maybe be at the left where it dropped from about 150 to about 140. All those little squiggles at the high rpm end are not due to timing being pulled.
The only possible place where that dyno curve in post 84 had timing pulled would maybe be at the left where it dropped from about 150 to about 140. All those little squiggles at the high rpm end are not due to timing being pulled.
intimdatr
Got Cams?
Are you required to have a safety net with no windows?
It will have lexan.
I considered going all out on the motor like this, but then I realized I'd never meet my budget for my Lysholm 5.3L 4V build for my mustang....that and the SHO eats money for maintenance. More power to you though, if you break 12s in a N/A SHO (**** turbo SHO) Bill Ford Jr. should give you a new SHO as a prize haha. Nothing cooler than a 20+ year old taurus working it out there
Spent another night in the garage last night.
Got to thinking while going through boxes of old parts and I stumbled across a 75mm V8 SHO TB. That after some test fitting and getting a plan together I am going to modify to work for the v6 SHO Intake Manifold.
Here is a stock V8 throttle cable assembly.
Here is a side by side comparison
Here is the throttle cable assembly modified for the v6 cable assembly.
Plans are to shave off most of the castings, redrill it and mount it to the manifold. The manifold is going to have to be opened up 6mm IIRC as well to match it. I should be starting on that within the week.
Other then that I got the intake all painted. Is not perfect but It looks a lot better then before.
Got to thinking while going through boxes of old parts and I stumbled across a 75mm V8 SHO TB. That after some test fitting and getting a plan together I am going to modify to work for the v6 SHO Intake Manifold.
Here is a stock V8 throttle cable assembly.
Here is a side by side comparison
Here is the throttle cable assembly modified for the v6 cable assembly.
Plans are to shave off most of the castings, redrill it and mount it to the manifold. The manifold is going to have to be opened up 6mm IIRC as well to match it. I should be starting on that within the week.
Other then that I got the intake all painted. Is not perfect but It looks a lot better then before.
jayro
SHO Member
Good thing you didn't chrome it. A certain pirate from AZ coulda swung thru there
Like the color scheme. What do you hope to gain from the TB mod? Won't it need a tune to be effective?
With his mods, a tune would probably help the whole thing run better. For just the TB a tune would not be nesacary. As long as the air is being metered as it go through the MAF, after that it doesn't matter too much as far as ECU tuning (within reason). His car appears to be built for 100% topend power. With the larger TB he could gain more flow at higher RPMs.
Yes jayro is correct. Tuning should not be required for the TB since im retaining the original TPS. I think the gains will be suprising to most. I would fully expect 5hp. If i do successfully modify the tb to work i will dyno stock vs 75mm
When you open the manifold up 6 mm, you will be making the radius between the throttleport and each side plenum very tight (assuming you re-radius and not leave a sharp edge). Short side radius minimization kills flow.
Its all a balancing act - not sure how many HP even a 68 or 69 mm throttlebody has ever shown on a SHO V6. Mustangs make 300 hp easily with 65 mm throttlebodies.
Guess my point was there simply isn't enough meat on the intake opening ****** to swing a full 90 degree radius as you go up above 68/69 mm in diameter - you would break through to the outside unless its fairly sharp. Look closely you'll see what I mean.
Nive job on the short runners, my extrude hones ones are 38 mm in diameter.
Nive job on the short runners, my extrude hones ones are 38 mm in diameter.
intimdatr
Got Cams?
1.5 is pretty damned thin.
Phoenix
SHOHOLIC
I got a 75mm BBK mustang TB , besides messing up the idle , it doesnt do much.
I also wanted to be top hp NA back in the day , found out later in life that its completely useless , if you get your ass handed to you , you cant scream back at him: YEA....WELL im NA *****.
It simply costs too much to gain .5 hp in the end.
I got long tube headers with a full on 3" mendrel bent exhaust , and im not making more hp than you. I also got ported intake and heads , a valve angle job and so on. At one point , the engine got its limits.
Do what you gotta do , but I tell you , a few years from now you will tell yourself ... Um I should have gone turbo and save a few Gs to make 100hp more.
I also wanted to be top hp NA back in the day , found out later in life that its completely useless , if you get your ass handed to you , you cant scream back at him: YEA....WELL im NA *****.
It simply costs too much to gain .5 hp in the end.
I got long tube headers with a full on 3" mendrel bent exhaust , and im not making more hp than you. I also got ported intake and heads , a valve angle job and so on. At one point , the engine got its limits.
Do what you gotta do , but I tell you , a few years from now you will tell yourself ... Um I should have gone turbo and save a few Gs to make 100hp more.
You will need to tune the IAC for that, I can guarantee it.
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