been a NAUGHTY boy
Discussion
just bought the janspeed manifold, flexi pipe, gearlinkage kit, quick shifter and CRP...oh and a heat wrap
no doubt my credit card is plotting revenge as i type, but i wanted to know if i need to strengthen any parts of the engine (head gasket maybe?).
im also running a 160 throttle body, ptp induction kit and now these gems, on a vvc engine.
geary thinks this is not necessary, but i just wanted a few more opinions (no disrespect tp the big-man).
>>> Edited by dragstar on Monday 29th September 10:15
no doubt my credit card is plotting revenge as i type, but i wanted to know if i need to strengthen any parts of the engine (head gasket maybe?).
im also running a 160 throttle body, ptp induction kit and now these gems, on a vvc engine.
geary thinks this is not necessary, but i just wanted a few more opinions (no disrespect tp the big-man).
>>> Edited by dragstar on Monday 29th September 10:15
dragstar said:
yep, but a heat wrap should do the same job, no?
My understanding of heat wrap is that it's designed to stop the engine bay getting too hot. A friend has it fitted to his Westfield because he has a very highly vtuned engune in tehre and overheating is a problem. The alternator heat shield will stop your alternator getting so hot, end of story whereas the heat wrap will keep the engine bay marginally cooler but the ventilation is pretty good (think of all the black mesh on the back of the car as well as the duct on the undertray). Also the heat wrap must be on the exhaust as it passes the alternator (in the pic on the site it's on the manifold).
As far as performance goes, heat wrap will keep the exhaust gas temp up, so it will have a greater volume and not be able to escape so fast through an exhaust of a given diameter but as we're not engineering the latest Lotus F1 car I don't think that'll be a problem.
I have no idea where that ahem, 'technical' rant came from but basically it won't do any harm and you won't need to strengthen anything.
Good luck passifying the credit card
cuzza said:
Can't you get a heat shield for the alternator from Eliseparts? I know I've seen one but I can't remember where
Yep, Elise Parts do one. I fitted it at the same time as I did my manifold as I was having a hell of a time getting the manifold on with the OEM heatshield.
I also used exhaust wrap, just make sure you get enough. I got 10m of 50mm and only just got to the secondary pipes. The performance theory with exhaust wrap is that is that by keeping the gasses hotter they travel faster through the pipes. No idea if that's true but it does help keep the heat down.
Dragstar, have you thought about fitting it yourself? Chris Neils will cost you a fortune in labour!! It's a pretty hellish job but can be done in under a day if all goes well and you prepare the job properly. Alternatively you could try Bruce at RagTop:
www.med-reg.co.uk/about.htm
He'll fit for much less than CN and do a better job, trouble is he's very busy.
cheers for that... will give him a call!!
called him and he says not to worry/bother with an alternator shield or even with the wrapping!!!!
he says the age of my car (1999) will cope with the excess heat as the exiges/sport 160s have the manifold without a special shield/wrapping.
what you all think?
(booked in for november)
oh and chris neil want £350....not paying that!!
>> Edited by dragstar on Monday 29th September 15:02
called him and he says not to worry/bother with an alternator shield or even with the wrapping!!!!
he says the age of my car (1999) will cope with the excess heat as the exiges/sport 160s have the manifold without a special shield/wrapping.
what you all think?
(booked in for november)
oh and chris neil want £350....not paying that!!
>> Edited by dragstar on Monday 29th September 15:02
I think he's probably right! I haven't heard of anyone complaining of a melting alternator, it could possibly, potentially after an extended period, maybe become slightly compromised by being near the exhaust but as it's bolted to a hot engine anyway I wouldn't worry - life's too short - the sun is shining, get the roof off and get out there!
A lambda sensor measures the oxygen level in the exhaust gas. It tells the engine management system if the amount of fuel being injected is rich/lean/just right. it should only need replacing if it is busted or if you trash it taking it out of the old manifold. Or maybe if you now need one with a longer lead. Save yourself some ££. If it's trashed the engine warning light will come on.
you dont need to touch the head gasket for a few bolt-ons - its only worth doing if you are going 190bhp + ...the bolt ons will prob give you 155-60bhp ish out of an S1 111S VVC
Dont touch it unless it needs changing - if you have a good un then you may go forever without suffering HGF
When you get to the next stage and are looking at cams/headwork/ECU/DTHTBs to go for 190bhp...then get an upgraded gasket
Dont touch it unless it needs changing - if you have a good un then you may go forever without suffering HGF
When you get to the next stage and are looking at cams/headwork/ECU/DTHTBs to go for 190bhp...then get an upgraded gasket
cheers bogie...i feel so (wrongly) "intelligent"/technical after seeing howstuffworks.com!!
glad nothing extra needs doing to the car!!
whooo hooo...so excited...pencilled in for sunday 23rd of november at ragtop!
next on list....
1)light flywheel
2)ap clutch
p.s. i am aware all this is making my car unsellable...but i dont care!!
glad nothing extra needs doing to the car!!
whooo hooo...so excited...pencilled in for sunday 23rd of november at ragtop!
next on list....
1)light flywheel
2)ap clutch
p.s. i am aware all this is making my car unsellable...but i dont care!!
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