One Hot
New Member
- Messages
- 35
- Location
- New York, NY
Hey Ryan I got my 200A alternator at http://stores.ebay.com/Eagle-Auto-Electric?_trksid=p4340.l2563, they were recommended on supraforums and seem to have excellent customer service.
I was going to suggest adding an auxillary radiator like XR8tt has. Cores come in countless sizes and shapes. One could be fit in a number of ways.
My next thought was a pusher fan mounted parallel to the road with a flap that would push UP and seal to a fabricated duct. The main duct would be like I posted already with the floor being the flap. Low speed, fan on, duct up and sealed creating a pressurized flow from under the car. At speed, fan off, flap drops and seals the pressure from the forward motion flow. Creates a pusher fan without creating any blockage at speed.
This morning thought of another way to "tackle" the problem. Build a shroud that uses the existing available space but then extends out and down (again using available space) leading to a parallel to the road PULLER fan(s). This would gain the needed plenum space between the core and the fans. This shrould should utilize blow out flaps so that forward motion flow would be able to exceed the fan outlet space as needed.
One of the concerns I had about enlarging the exhaust port area on your ported heads was that it would increase the surface area in the port thus increasing the transfer of exhaust port heat to the water jacket in the heads. It also slows the speed giving more time for transfer. The reduction in metal mass is hard to predict if that would be a net increase or not.
Ditto on XR8tt's tuning recommendation as too much retard will really increase exhaust temps as will too rich or combination.
Congrats to One Hot for getting Ryan's original system up and running. Hope he keeps everyone posted on its progress. Will be interesting to compare the two systems outputs as well...
Hey Ryan I got my 200A alternator at http://stores.ebay.com/Eagle-Auto-Electric?_trksid=p4340.l2563, they were recommended on supraforums and seem to have excellent customer service.
In revisiting the pic that Steve posted of Ryan's engine bay the feed and return radiator hoses pass right over and even wrap somewhat around the exhaust downpipe from the drivers side turbo. I would look very closely at finding another route for the hoses. Turbine housings, manifolds and downpipes often run RED hot+++ under load. Heating and reheating the water to and from the radiator is not going to help this issue.
I have a boost pipe touching my radiator line just like John pointed out above. I know its not as big of a deal as a down pipe toching a radiator hose but if the hose was left as is... could it be fixed by wrapping the hose with nomex? I wondered if i could shed a few degrees by trying this.
Funny you mention that, I was just saying the same thing ti Ryan yesterday when he brought up the overheating issue.No under trays will do it! many a 7m in Mk III supras have died due to people not putting the under tray back on...
No under trays will do it! many a 7m in Mk III supras have died due to people not putting the under tray back on...
...If you want something done right do it yourself
depending on how your modified one go's you may want to try gaffa taping the louver holes off from under the inter-cooler back
Funny you mention that, I was just saying the same thing ti Ryan yesterday when he brought up the overheating issue.
Lesson to all...tough to beat the stock, OEM engineering, and keep it intact whenever possible for most systems in the car...
Ryan
Ryan, so in the end you think it was only the belly pans? You still have your 14" Flex-A-Lites installed, too?
You got my prayer! Once you start boosting for several times, it'll start getting hotter, if the heat isn't ventilated out.
Temps will / should only increase at low speed..
The fans "mainly" work at low speed due to air speed anyway..
If you need fans to cool over 40 mph...
You've got issues in your system..
If there's a rubber seal around rear of hood / bonnet??
A section can be removed to let hot air out...
Preferably not in front of drivers vision..
In case there's a hemorrhage in engine compartment...