- Joined
- Dec 10, 2008
- Messages
- 627
- Reaction score
- 12
- Points
- 18
- Location
- Warrenville IL
- Vehicle Year
- 1998
- Make / Model
- Ford
- Engine Size
- 5.0
- Transmission
- Automatic
Some people know of me/my truck on other boards, but for those that don't, I have a 98 Ranger, 5.0 swap, OBD2, 5lbs of boost with a roots style supercharger.
After Dyno'ing I've started doing some additional research on the blower and contacted the vendor finally...
Results:
235WHP, and climbing (shifted on the dyno into 4th gear... it was still pulling, and judging by the curve I'd say it had another 10-15 left in it easily.)
300WTQ, peaked at 3500RPM, dropped to 285 by 4500RPM when it shifted.
11.8 A:F Across the board.
The Supercharger kit was advertised as 285hp at the crank with 6PSI, so Its about on-par, which is nice since its only 5PSI.
Truck has about 12.01lbs Per Crank HP so it moves out nicely.
Mods: K+N Panel filter, 30lb injectors, 255lph Walbro fuel pump, full exhaust minus headers, 4.10 8.8 Posi rear end.
So now the next step is "What do I need to do to pulley down"
http://www.pulleyboys.com/store/home.php?cat=16
the vendor's HO Kit for their 4.0 SOHC Mustang blowers is 11lbs, and they had told me that they have only seen heat issues on that kit when it is exceptionally warm outside (90+), and the tune they sell with that kit drops power accordingly for it to keep it safe.
With this in mind, Its the SAME blower that I have, and I see no reason not to go ahead and order the 8lb pulley since stock 5.0's are taking WELL more than that, and the explorer bottom end is beefier than the mustang 5.0's anyways to my understanding
So my questions:
What else do I need to upgrade to keep this safe? I have a Wideband O2 sensor/gauge, and a Boost gauge to keep an eye on those 2 things. I already have bigger injectors as well as a high volume fuel pump, that should be more than adequate, but from reading.
I suspect my next 'limiting' factor is the MAF (Stock 1996 V-8 Explorer MAF) as it can only 'see' so much CFM, and when its pulling enough air for 8lbs, it will peg the MAF, which is bad news. Suggestions on OEM/Aftermarket replacements? Any need for a larger MAF, or is it primarily the sensor? Or do I even need to replace it if I'm only going 8lbs?
No space to run a Liquid to air intercooler/heatexchanger, and Meth is out of the question for the moment. The blower is ice cold even after my dyno pulls, the tuner that Dyno'ed the truck was surprised how cool it was running until I told him it was only 5psi.
And then finally Spark plugs I'd imagine I should run a step or 2 colder...
I started a thread about the plugs previously on other forums, and noone really gave me any good resources... I am going to see about calling a vendor directly to get information on this, but figure it couldn't hurt to ask if anyone had a good resource for this info.
Sorry for all of the questions combined into one post, but the "Boost bug" has bitten.
After Dyno'ing I've started doing some additional research on the blower and contacted the vendor finally...
Results:
235WHP, and climbing (shifted on the dyno into 4th gear... it was still pulling, and judging by the curve I'd say it had another 10-15 left in it easily.)
300WTQ, peaked at 3500RPM, dropped to 285 by 4500RPM when it shifted.
11.8 A:F Across the board.
The Supercharger kit was advertised as 285hp at the crank with 6PSI, so Its about on-par, which is nice since its only 5PSI.
Truck has about 12.01lbs Per Crank HP so it moves out nicely.
Mods: K+N Panel filter, 30lb injectors, 255lph Walbro fuel pump, full exhaust minus headers, 4.10 8.8 Posi rear end.
So now the next step is "What do I need to do to pulley down"
http://www.pulleyboys.com/store/home.php?cat=16
the vendor's HO Kit for their 4.0 SOHC Mustang blowers is 11lbs, and they had told me that they have only seen heat issues on that kit when it is exceptionally warm outside (90+), and the tune they sell with that kit drops power accordingly for it to keep it safe.
With this in mind, Its the SAME blower that I have, and I see no reason not to go ahead and order the 8lb pulley since stock 5.0's are taking WELL more than that, and the explorer bottom end is beefier than the mustang 5.0's anyways to my understanding
So my questions:
What else do I need to upgrade to keep this safe? I have a Wideband O2 sensor/gauge, and a Boost gauge to keep an eye on those 2 things. I already have bigger injectors as well as a high volume fuel pump, that should be more than adequate, but from reading.
I suspect my next 'limiting' factor is the MAF (Stock 1996 V-8 Explorer MAF) as it can only 'see' so much CFM, and when its pulling enough air for 8lbs, it will peg the MAF, which is bad news. Suggestions on OEM/Aftermarket replacements? Any need for a larger MAF, or is it primarily the sensor? Or do I even need to replace it if I'm only going 8lbs?
No space to run a Liquid to air intercooler/heatexchanger, and Meth is out of the question for the moment. The blower is ice cold even after my dyno pulls, the tuner that Dyno'ed the truck was surprised how cool it was running until I told him it was only 5psi.
And then finally Spark plugs I'd imagine I should run a step or 2 colder...
I started a thread about the plugs previously on other forums, and noone really gave me any good resources... I am going to see about calling a vendor directly to get information on this, but figure it couldn't hurt to ask if anyone had a good resource for this info.
Sorry for all of the questions combined into one post, but the "Boost bug" has bitten.