The biggest thing to remember when planning a 'build' is the 'real world', where most of the driving will be done.
Thanks Marcelo,Ok, lets check it out, first I will add that I have underdrive pulleys, this test was done on a stock 5.0 and it worked but was not mentioned was the real world, charging and cooling issues were not addressed. The real world is there can be (I say 'can be' because there are workarounds for these issues) problems when sitting in traffic at night in the summer time with the ac on.
Ok, so you don't sit in traffic at night in the summertime with the ac on. Because you can't. The temps will rise and the voltage will drop. Real world.
I mentioned workarounds, now you are installing electric cooling fans then a 3g alternator. Well you did accidentally gained a few more ponys. All's well. Most of the time.
Was the $60 bucks worth the 16hp and 17 lbft at 5k.
Real world driving is at say 3200 rpms where the gain is 7 hp and 11 lbft. Not so much now but some.
For some it works, for me it is marginal.
Now you can make an informed decision.
that’s the future plan. Some guys runs the UDPs not problem, some seem to see their problems once they put them on etc. Any chance you have managed to take out the lower raiator hose spring and switch it to a new hose? Doesn’t seem like a complicated thing to do just curious.I agree with the General.
If looking for freed up horsepower. Switch to electric fans (3G alt will be required). I have read tests (and based on personal experience, I believe them) that removal of clutch fan is 15-20 hp. Test I read said 18, but everyone's results will vary slightly. I have put UDP's on and off and right now I am not sure what I have.
2 HP gain + cooling & charging problems.why that ??? i run underdrive pulleys since years and no problem with that ...
7991LXnSHO,How old of tires do you trust to drive on? Hoses age and blow out, too. If in doubt, replace the old hoses and flush & change the coolant for reliability. BTW, they get really upset when you have a coolant problem on a track, so it’s not just street I am thinking about.
In Nebraska summers, I really appreciate the R134a that was already in my AC. As The General is trying to tell you, the under drive pulleys are not worth it on the street. When I asked ten years ago about them on the street, I was shown pictures of them as ash trays by people who tried them in climates that have wide temp variations.
Adding a higher output alternator and water pump probably adds enough drag to offset the pulleys gain. There are smarter ways to spend money on a street car.
I did the tailshaft bushing and seal a few months back. My car is a manual, but I would imagine it's basically the same. Seal is easy. Getting the old bushing out is the tricky part. I ended up using a sawzall of all things to split the bushing and it came right out. On my housing there was one spot about 1/4" wide and 1/8" deep that I was able to cut into without damaging the housing. I pulled the tailshaft housing off of the transmission. There is a tool for doing it on the car, but it was way to expensive for me to justify spending the money on it. There are pictures and more details on my progress thread.
Thanks for the link.If you want to see what I did here is this link.
Progress Thread - Therapy Car-- Freshening Up the Lower Intake
Here's the game plan for freshening up the rear end. Shocks (I have KYB AGX on the front. I guess I'll go with that on the back unless someone changes my mind) Quad Shocks (any recommendations?) All new bushings including spherical bushings (I already have all of this except the spherical...www.stangnet.com
Any trouble removing the spring? I’m sure I can get it out but I’m open to tricks if you got one.Just wanted to add....the lower radiator hose can collapse and cause an overheating issue in some cases. I've witnessed this first hand on a couple mustangs that had weird temperature spikes at sustained rpm. It also has to do with the radiator size. If I can, I always swap the spring from the lower radiator hose into the new one.
Under drive bullies are a waste of time man. To each their own but those days are over for me.
Thanks,I never,not once had an issue with UD pullies. Always ran them years back and my car currently runs them. However,I'm sticking with the stock alternator pulley,as I upgraded to a 3g and want it to it's full ability. Oh,I LOVE Mk 7s !! You should manual swap it Also,I've never ran anything other than a stock radiator,again never an issue. Hell my buddies 93 Cobra ran a stock radiator for years,was a 10sec car.
Take a knife or razor and cut the hose. Easiest way to get it out. CJ Pony Parts has them for sale...so does summit but theirs are by size. I've had some not so great issues with CJ so that's not my most favorite place to order from.
If the suction of the pump becomes more than the radiator can flow it will collapse the hose. Here's a screen shot of Ellisons Machine Shop running an engine they currently have for sale in Maryland. Look at that hose sucking in.
This guy is pretty awesome and shares a lot of knowledge. If you have FB join and watch some of his vids.