Rogeyboy

iTrader: (2)

I've got a standard T3 manifold which i have exhaust wrapped, but some people tell me it will crack once wrapped. Mine glows red after even gentle driving and im worried it might crack...
Whats the opinions on this?
Is it normal to glow red?

ZTSI

Mine glows red after a spirted drive. T3 manifolds are cheap, wrap it and see what happens.

muz

Mine cracked after it was wrapped. Whether it was a coincidence I don't know, but your not supposed to wrap cast.

Rogeyboy

iTrader: (2)

Muz - Did yours glow red after driving?
Mine seems to glow quite easily... Just wondered if they'll crack after a while, but alot of ppl seem to wrap them. Twins has his wrapped etc.

zetecherb

on my old rs at one point it glowed white, i had ago at wrapping it and after i got a telling off from a car garage so off the wrap came it was a t34

essexRSTSouthend

I always see aftermarket manifolds saying warranty void if wrapped.my manifold cracked and thats without wrap.

Karlos G

iTrader: (4)

Then there is something wrong mate, either too lean or to retarded, get it setup asap IMO!

muz

I missed that, Karl. It shouldn't glow red after gentle driving. Points to a fueling or timing issue. Has it been set up?

muz

Also Dave (twins) car isn't running big power, so he wouldn't see the same heat as some of us. Mine craked where the headers meet the the turbo flange.

mattseries2

iTrader: (1)

Mine too.

Rogeyboy

iTrader: (2)

When i say "Gentle Driving" i mean bringing it on boost at mid throttle/mid revs and then driving off-boost for 2-3miles after and pulling up and checking the manifold! Ive got the Idle CO set to around 3% but it needs a good set-up. I'm refraining from driving it hard until it's setup!
Maybe that'll cure my hesitation as it comes on Boost in 4th and 5th too!
My Inconel 4 branch on my NA CVH would glow after hard use once it was wrapped!

martinmilne

i had mine wrapped and it blew the gasket it did glow red but after a good thrasing

Ade

Glowing manifolds are bad news! Usually running really lean, get it seen to!

essexRSTSouthend

The flange gasket blew?

martinmilne

no the manifold gasket

essexRSTSouthend

Ford item? Just wondering.

martinmilne

no wasnt just all parts jobby

essexRSTSouthend

Ok.cheers

orionmojo

iTrader: (1)

I had mine wrapped for a bit Roger, i wouldn't bother personally. it did f**k all to underbonnet temps and it wsa nigh on impossible to get to a couple of bolts when it came to the refitting of it. once it was gone it was good riddence.

I did wrap my downpipe until past the gearlinkage though and that helped ever so slightly imo. (for underbonnet temps)

Rick

No.

Rogeyboy

iTrader: (2)

I wrapped it to keep underbonnet temps down, but if its gna do more harm than good when i swap the turbo i'll unwrap it... Wrapping the whole system is on my to-do list, double on the downpipe!
Im just worried about it cracking as it glows red... Maybe i'll get it set-up and see how it goes!

Rick

it's the exhaust valves you need to worry about. cracked manifold is the least of your worries.

essexRSTSouthend

Problems with valves only apply to standard?

Rogeyboy

iTrader: (2)

What happens to the exhaust valves? Arent they sodium filled to dissapate heat?

Does wrapping the manifold retain the heat in the valves... Won't the head still cool the valves?

muz

I thought only Series One exhaust valves were sodium filled? Not Series Two.

Rogeyboy

iTrader: (2)

Well i don't know, now you've said that lol!
I thought all CVH Turbo's had sodium filled exhaust valves...?

essexRSTSouthend

Im running big valve head,thought id ask lol.but then still got the problem of the manifold cracking i spose..

Karlos G

iTrader: (4)

Yes
No

lol

muz

Yay! I win the prize!

essexRSTSouthend

If these valves were that good,surely ford would of carried it on to s2...
Seems strange to me

Chopshop85

iTrader: (4)

I'm running 15psi making around 170bhp and my manifold has never changed colour lol, even after a spirited drive.

Get that car set up!

Karlos G

iTrader: (4)

At 132bhp Sodium filled valves are utterly pointless, the chambers do not see temps any where near high enough! lol
I can only assume that as the S1 was more motorsport inspired they carried the valves over, remember they had them producing 250bhp+ for touring car racing back then.

essexRSTSouthend

Yay it was the 260 mark,as my uncle had a road version.crazy.

Rob_DOHC

iTrader: (4)

Just better head transfer to the head, they are bastard expensive to get made, haven't found any off the shelf

Wouldn't have thought heat wrapping the manifold would have any effect on actual valve temperature tbh.

Rob,

essexRSTSouthend

Since this topic started i've been trying to find out if it worth the hassle lol.

Rob_DOHC

iTrader: (4)

What, sodium filled valves or wrapping the exhaust?

Both are worth it, just not practical.

essexRSTSouthend

wrapping.i just keep coming across cracked manifolds due to wrap..

Rob_DOHC

iTrader: (4)

Manifolds are cheap, give it a go and let us know lol

Rob,

essexRSTSouthend

haha.Nah im ok thanks

Karlos G

iTrader: (4)