just seen on trade me

[Malcolm]

just thinking about this, that seatbelt mounting seems absolutely hideous, not just because it looks crappy, but he's putting the strut brace into bending, when it's designed for effectively pure tension and compression - that brace will crush/buckle as soon as there's much of a load put on it (I even think braking *really* hard could do it). Dodgy as f*ck

[Malcolm]

mmm look at that sweet wiring

[deaf_rattle]

ive seen better workmanship on rotorised 323's!

[RTALI8]

Stuff that. Probably doesnt even have cup holders.

[RomanV]

Re: the lifted bonnet thing....

I could give a technical, detailed analasys of why I should be getting laid 5 times a week. Doesnt mean its gonna happen IRL. ( ) And just because you can give a technical analasys of why a lifted bonnet shouldnt cool an engine bay, doesnt mean that it doesnt.

Yes, base of windscreen is a high pressure area obviously. But given that heat rises and all that guff, I wouldnt die of shock if it turned out that raising the rear of the bonnet actually did help in some way.
High pressure cold air on one side, low pressure hot air (That can escape to other areas) on the other side. Hmmm, does it work? Perhaps, even if not in the way that people intend when at highish speeds.

I dont care either way, as it's not something I think I'll ever do...
But cant see the point of bagging it without having proof that it DOESNT work. Would be interesting to see someone test it either way.
(Although even then, it would the results would only be applicable to a car of that shape etc)
Tying a piece of string to a few parts of the bonnet would tell you in about 5 seconds flat which way the air is going.

Although I guess its debatable as to what difference under bonnet temperatures actually make anyway, when you're not drawing your air for the engine directly from there...

EDIT: In hindsight, I could have just said more or less the same thing by making two quotes:

it will not and cannot help with under bonnet cooling at speed.

show me some data gathered under controlled conditions

[Dragger_Dan]

IMO - if you're fans, radiator, thermostat, head gasket, radiator cap and temp guage are all working like they should, then in theory you could loose the bonnet all together and it shouldn't make too much difference to the temp the coolant runs at under normal operating conditions.

[frost]

whats really funny is the nay sayers have been on the internet discussing why the lifted bonnet wont work when people have been out on the track and fund it really does work, even taking off the rubber strip on the edge or the back bonnet lowers temps by 2-3deg, dont knock till you try it,

[Dragger_Dan]

Your thermostat should be holding your cooling system at a set temperature... still can't see why this should make a difference. Also, ask the question, is colder better? Most EFI systems set the fuel mixture based off many pieces of information, one of those is the coolant temp. So running your motor too cold or too hot may upset your fuel mixture, probably loosing you performance. I don't see the need in all this extra cooling crap when you can cane a road car around a race track and the temp guage sits at exactally the same point as it does on the open road at 100k. (Yes, based on my own experience at Taupo with my AW11)

Another consideration could be tollerences in the metals in your engine at different temperatures ... I'm no engineer so I can't tell you if a few degrees makes a difference, but if something was designed to work so well in the first place then why mess it up?

[johntramp]

Your thermostat should be holding your cooling system at a set temperature... still can't see why this should make a difference.

lower intake air temps for us with itb's / no plenum

[RomanV]

Yeah, I'd have thought it would be heatsoak issues with wiring/intake manifold/alternator/etc/etc rather directly affecting the cooling/coolant system...

[Dragger_Dan]

Your thermostat should be holding your cooling system at a set temperature... still can't see why this should make a difference.

lower intake air temps for us with itb's / no plenum

Good point, except why run no plenum? Is it a disadvantage to performance?

[Mr Revhead]

whats really funny is the nay sayers have been on the internet discussing why the lifted bonnet wont work when people have been out on the track and fund it really does work, even taking off the rubber strip on the edge or the back bonnet lowers temps by 2-3deg, dont knock till you try it,

where? whos found it works?
all i have ever seen to say it works, is some ppl on forums.

yet all the aero stuff you can find anywhere shows it doesnt.

try looking at some very aero sensitive sedans.... like NASCAR.
that area is where they have the air intake.

but hey, who here really gives a shit about aero or bodymods for performance on their cars?

[frost]

theres a big difference between engine temps and under bonnet temps,
yes ok for daily a to b driving its not worth it, but if your tracking the car (and the car in question is a track car) then i'd be keeping things as cool as i can, for the price of 2 washers its a easy mod.

[Mr Revhead]

Your thermostat should be holding your cooling system at a set temperature... still can't see why this should make a difference.

lower intake air temps for us with itb's / no plenum

why would you run ITBs open to under the bonnet?
may not be such an issue in a RWD car, but youd be mad to do it in a FWD.

[Dragger_Dan]

Your thermostat should be holding your cooling system at a set temperature... still can't see why this should make a difference.

lower intake air temps for us with itb's / no plenum

why would you run ITBs open to under the bonnet?
may not be such an issue in a RWD car, but youd be mad to do it in a FWD.

Again, my evidence against open ITBs:

[RomanV]

where? whos found it works?
all i have ever seen to say it works, is some ppl on forums.

Some motorsport regs (IIRC...) seem to think that it's a no no to have rear facing vents on the bonnet. Presumably so if an oil line explodes or something, you can still see where you're going.

I'm guessing that a hitched bonnet would fall under this category, in which case you're not likely to hear about it from the likes of race drivers etc, as they wouldnt be allowed to do it, even if there was a benefit.

[fangsport]

theres a big difference between engine temps and under bonnet temps,

and you have an ambiant air temp sensor to prove you 2-3 degree drop in temperature? reducing under bonnet temp ain't gonna have much effect on thermostaically controlled engine temp.

yes ok for daily a to b driving its not worth it, but if your tracking the car (and the car in question is a track car)

that car IS not a track car. ok, so he 'might' have taken it to Puke on an open day to bust some skids, but in essence that dosn't constitute a track car.
that thing has so many faults that a scrutineer would take a slight glimpse and say "next, please".

[fangsport]

where? whos found it works?
all i have ever seen to say it works, is some ppl on forums.

Some motorsport regs (IIRC...) seem to think that it's a no no to have rear facing vents on the bonnet. Presumably so if an oil line explodes or something, you can still see where you're going.

I'm guessing that a hitched bonnet would fall under this category, in which case you're not likely to hear about it from the likes of race drivers etc, as they wouldnt be allowed to do it, even if there was a benefit.

rear facing vents are legal, just need to be baffled.

[Dragger_Dan]

I think people need to stop and ask ... "does my car have a cooling problem?" in the first place.

Also, a buzzword I have never had explained to me.... WTF is 'heatsoak'?

[Trls250s]

Flame Flame Flame Flame Flame.

What happened to discussing this Trueno, and when did it become a argument to bonnetlift?