Supercharged AJP8. one last step!
Discussion
ChimpanLucky said:
Hi Paul, thanks for the brief run up the M1 last night.
I would simply describe the performance as extraordinary.
Madeira Drive
Your more than welcome. Anyone who is passing through my area and is interested is welcome to come and see the car and If its possible I will take you out in it or we could meet for a beer somewhere. I live near Reading Berkshire. I would simply describe the performance as extraordinary.
Madeira Drive
Its a shame more of you PH's dont come to the Ace Cafe, its a good night out, unfortunatley the Lotus owners out numbered the TVR's last night. Look on the Ace website theres lots of different night to attend. The last petrolhead nirvana was a good one.
As an update on the car I think I am going to fit an electric waterpump and a larger radiator to assist cooling in traffic. The charge temperature also go up very quickly in traffic (60deg C) so I think an intercooler would help. Apparently a 10deg drop in charge temperature is worth 2.5% more BHP.
Alexdaredevilz said:
The best way I've seen a charge cooler work is by using a electric water pump and motor bike rad+fan combo cooling it separate from main cooling system
I friend of mine took an electric waterpump of a Think Electric car... was for cooling the batterypack 
uses it on the chargecooler. Awesome setup, god I love Cerbs...
well after a summers with only minor niggles use have decided to do a few jobs on the cerb.
I've got a few issues to sort out on the engine, not to sure if its related to the supercharger or not but it gets very hot in slow traffic, so I have decided to fit the EWP 115 davies craig water pump to assist with water flow at slow speeds.
Also going to fit either a charge cooler or air to air intercooler (ideas please) as I found that the charge temp was going north of 60degrees on extended drives.
Will post up some pictures as I go along, any suggestions on technical issues I might encounter would be appreciated. The EWP pump and contoller is going to look after the electric fans as well as the water pump.
I've got a few issues to sort out on the engine, not to sure if its related to the supercharger or not but it gets very hot in slow traffic, so I have decided to fit the EWP 115 davies craig water pump to assist with water flow at slow speeds.
Also going to fit either a charge cooler or air to air intercooler (ideas please) as I found that the charge temp was going north of 60degrees on extended drives.
Will post up some pictures as I go along, any suggestions on technical issues I might encounter would be appreciated. The EWP pump and contoller is going to look after the electric fans as well as the water pump.
Not to sure if its the right choice for a road car as you only have cooling for as long as the tank lasts. Theres plenty of room in front of the engine as well which would suit a chargecooler, but these are a little more complex with tanks pumps etc etc. I really like the idea of a air to air intercooler as its so simple. My current train of thought is looking at an air to air intercooler mounted where the glass fibre airbox and air filter is located...just not sure if it will be a big enough space.
Theres plenty of room in front of the rad to get an intercooler in there, that will be the easiest and most efficient way to do it this will be about 50% efficient
depending on size but you will get a pressure drop from blower to manifold you will need to up the boost to compensate it will work well.
depending on size but you will get a pressure drop from blower to manifold you will need to up the boost to compensate it will work well.
might be worth a thought for the overheating! http://www.evanscooling.com/products/coolants/
not tried it myself but looks interesting (just used on this weeks wheeler dealers on a TR6)
not tried it myself but looks interesting (just used on this weeks wheeler dealers on a TR6)
First of the few winter projects out of the way. I have always found the engine runs hot on idle and in slow traffic which was causing some "knock" on low throttle. I use to dread summer traffic jams as you could be sure the engine temp would hover around maximum with fans flat out.
I decided to fit a EWP 115 water pump and controller to assist with the circulation of water. I have left the original pump working removed the thermostat housing and fitted the pump where the housing was, this seemed sensible as it is likely to be where the new pump would be most beneficial to assisting circulation. Initial test seem to show it works great. Used the Emerald ECU to switch fan 1 on at 85deg fan 2 on at 90deg and both fans to stop at 80deg. Then set up the EWP controller to come on at 80deg. I ran the engine at various speeds (car stationary) including tick over for over 2hrs and the temp never went above 85deg and below 80deg. Another benefit is when you turn the engine off the pump keeps running until 80deg is reached so there should be no heat soak in the engine after a session of hard driving. Pictures to follow.
I decided to fit a EWP 115 water pump and controller to assist with the circulation of water. I have left the original pump working removed the thermostat housing and fitted the pump where the housing was, this seemed sensible as it is likely to be where the new pump would be most beneficial to assisting circulation. Initial test seem to show it works great. Used the Emerald ECU to switch fan 1 on at 85deg fan 2 on at 90deg and both fans to stop at 80deg. Then set up the EWP controller to come on at 80deg. I ran the engine at various speeds (car stationary) including tick over for over 2hrs and the temp never went above 85deg and below 80deg. Another benefit is when you turn the engine off the pump keeps running until 80deg is reached so there should be no heat soak in the engine after a session of hard driving. Pictures to follow.
What ewp did you go for? from what i've read all but the very best are incapable of keeping powerful cars properly cooled. marquis_rex (i think) did an excellent write up on here about ewps and why they are generally not up to the job .. he posted some links to some ewps which were good though, not cheap though sadly.
spitfire4v8 said:
What ewp did you go for? from what i've read all but the very best are incapable of keeping powerful cars properly cooled. marquis_rex (i think) did an excellent write up on here about ewps and why they are generally not up to the job .. he posted some links to some ewps which were good though, not cheap though sadly.
Was that EWP in isolation though, or in series with a mechanical as in Paul's application?Good point .. it was in isolation .. I guess if Paul is using his to help a mechanical pump that's no longer performing properly then it's a different matter and is obviously helping if the temps are now stable Does make you wonder what is wrong with the OE pumps though but a bit of a faff to remove them on the ajp8 sadly. I can see why the ewp in this case is an attractive fit.
Does make you wonder what is wrong with the OE pumps though but a bit of a faff to remove them on the ajp8 sadly. I can see why the ewp in this case is an attractive fit.Gassing Station | Cerbera | Top of Page | What's New | My Stuff