Discussion
wargriff said:
On one of my visits to Dulford there was a metallic blue Griff with 3 half moon vents cut in each wing. The vents were set just forward of the door start point. The curve of the vents followed the door/wing recess perfectly and as they got smaller as they went closer to the front, they also looked great. The guy had them meshed behind to stop anything going in.. I would assume this would allow good airflow through the engine bay also. If possible I will try and find some of the pics I took.
Was that the reflex purple with a custom dash?Saw it there several times. Quite a few mods but i never found out whose it was or the full story.
LordGrover said:
Was that the reflex purple with a custom dash?
Saw it there several times. Quite a few mods but i never found out whose it was or the full story.
I suspect you are referring to Dave Redden NOS Griff (beat derrick and the chimp boys to it by at least 5 yrs;) )Saw it there several times. Quite a few mods but i never found out whose it was or the full story.
ph topic plus link to sprint article
Dave's bonnet is custom made with a raised central ridge line to give more venting at the rear, along with chimp style gills (that i think look better than the fibreon ones).
I have experimented with different method of getting heat out of the engine bay and the Fibreon bonnet with the Chim vents looks and works very well my experience.
The downside is cost, brake master cylinder issue and getting a good paint finish. (I have had my Fibreon bonnet painted twice due to the finish of the Fibreon bonnet when painted).
The upside, better aero at speed, the cabin temp is now lower, the engine runs cooling and when the engine temp does get high in traffic jams, the heat can escape quickly once on the move.
Precat
The downside is cost, brake master cylinder issue and getting a good paint finish. (I have had my Fibreon bonnet painted twice due to the finish of the Fibreon bonnet when painted).
The upside, better aero at speed, the cabin temp is now lower, the engine runs cooling and when the engine temp does get high in traffic jams, the heat can escape quickly once on the move.
Precat
Precat said:
I have experimented with different method of getting heat out of the engine bay and the Fibreon bonnet with the Chim vents looks and works very well my experience.
The downside is cost, brake master cylinder issue and getting a good paint finish. (I have had my Fibreon bonnet painted twice due to the finish of the Fibreon bonnet when painted).
The upside, better aero at speed, the cabin temp is now lower, the engine runs cooling and when the engine temp does get high in traffic jams, the heat can escape quickly once on the move.
Precat
thats good to know.The downside is cost, brake master cylinder issue and getting a good paint finish. (I have had my Fibreon bonnet painted twice due to the finish of the Fibreon bonnet when painted).
The upside, better aero at speed, the cabin temp is now lower, the engine runs cooling and when the engine temp does get high in traffic jams, the heat can escape quickly once on the move.
Precat
i got an "old" fibreon bonnet that had sat around for a while, so hope any fibreglass movement would have finished....but the sportmotive chaps give a paint warranty anyways.
i used a flat cap for the brake fluid container, which clears (3mm or so).....but i do like the cover that christian fitted, as the reservoir does look a little ugly......
im also convinced the bonnet lets pressure out via the vents....there is less flow under the car now (whilst in part trim i had no gearstick gaiter, and there was noticibly less air blasting into the cabin with the new bonnet fitted
SSPPGG said:
.....but i do like the cover that christian fitted, as the reservoir does look a little ugly......
Screw down aero covers that engage studs with twirl nuts are great mods for both clutch & brake IMHO. I made my first shells @8 years ago, must have saved a fortune in sealant & man-hours in that time
SSPPGG said:
spend, do you make them???
there is pic somewhere here of a carbon effect brake reservoir cover
I just made some for myself, did ask Joo if he wanted me to make some up but didn't seem much interest at the time. I probably have the moulds hanging around somewhere (I reduced the dome on the clutch so I could fit more substantial fittings with a more solid flange to screw it down onto a foam seal)there is pic somewhere here of a carbon effect brake reservoir cover
SSPPGG said:
spend, that'd be great., i do need to do something with the brake reservoir, and i need to make the clutch dome bigger as ive fitted a bigger cylinder and the reservoir doesn't fit inside the cover by a few mm now.
where are you based?
I'm in chesterfield.where are you based?
If you want to make custom part, just cover the existing one in polythene and squirt foam filler on. Then cut away / add plasticine to refine the new shape you want. When ready a couple of layers of fibreglass & bobs your.... Once you have the shape you want just bolt / bond a couple of studs into the car so you can clamp it down...
Add a bit of foam to create a watertight seal, POR15 paints great on the fibreglass if you want a nice easy finish. It's only an afternoons work as with the clutch cover you have a template to work from, whereas the brake cylinder cover takes a bit longer getting the shape of the inner wing to start with.
That area where the rear of the bonnet meets the base of the windscreen is likely a high pressure zone (unlike the rest of the bonnet); putting vents in here in a high pressure zone will do nothing to draw air from under the bonnet, and if you're really unlucky may even draw air in (not out) creating even higher pressure in the engine bay and decreasing air drawn in through the radiator.
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