Andy Forster Dyno Results From Thor Today 407bhp at hubs!

[Hedgehog Dodger]

need to get mine on the dyno now......

*anticipates list of excuses why car can't make it that day*

YAWN!!!

You will see.

[V8Killer]

I'd be extremely suprised if it turns out to be the water pump. Has anyone heard of a water pump failing?

At a guess i'd suspect the fact you've used a Rev 3 head on a Rev 1/2 block. But then again Ian A has this setup on his own car and has no problems. Which HG did you use out of curiosity and for, which revision was it?

[JJ]

Following on from what JJ said, I'm just wondering if it's to do with the mix of Rev3 head and HG and block.

I wished I paid more attention the block and heads ! Though I was mainly concerned about just fitting the Rev 3 HG to a rev 1/2 engine... none of this bolting a rev 3 head onto a rev 2 block. I can remember the cooling passages from the rev 2 block to feed the head are in a different position on the rev 3's.

Possibly coolant allowed to fill the cavitation but no way out ??... when gets hot, the lack of circulation creating a gassing of the area above the gasket ? in the head area and thus pressurising the coolant ?

Pity I havent a rev 2 HG kicking about as my rev 3 heads on the floor as we speak.. might have shed some light. I'm sure I still have my old chocolate one from 2/3 years ago when it blew - souvenier !

Have you tried jumping on the gt4OC.... theres a few ST185's with St205 heads on... basically what you've done.... see if they've experienced any coolant problems ?

I'd be extremely suprised if it turns out to be the water pump. Has anyone heard of a water pump failing?

as muhsin has mentioned... totally unlikely unless its losing coolant.... and a hell of a lot of labour to check its function. Its only a pulley with an impellar at the end of the day !! I've fixed a couple of water pump failures MB, normally the bearing housing cracks and starts to emit coolant out of a side channel to the pump ( designed ! )... so mainly under pressure around the block ( upto normal running temperature ) it'll start throwing it out - thus can draw air in too !!

The bearings on mine went too, but the water pump also went out of alignment too... real pain as it starts to chew the timing belt away and starts cutting into the oil pump !! hateful times of ownership then !

[JJ]

BTW, you've got to get used to using these quote things, matey!

He can build an engine and strip it without problems, but he can't use the bloody quote button at the top what esmonds kindly set up !! [/quote]

[JJ]

The Rev1/2 heads have a channel around the combustion chambers, right? So if you're fitting a Rev3 head (which has holes, not a channel) onto an earlier block, would you not just make sure that the holes on the HG line up with the holes in the head?

Theres just something ringing about the way the coolant is delivered through to the head thats different, I will see if I can work it out over the next few days.

Yes, I guess it would be a matter of lining up the holes with the holes in the head, where I'm coming from is ( I'll have to confirm this later ) the the water jackets around the cylinders supply the coolant through the HG, but then if you note.. ( again confirmation later - I could me completely wrong ) where it exits through the head is directly above the hole through the HG ? Now this hole say for this example is to the left of the cylinder( in the HG ), I'm sure the coolant is supposed to travel across the top of the gasket and exit to the right of the head..... thus a circulation flow across the area before exiting the head.

Now if the hole in the HG is directly above the hole in the head ( left for examples sake ), do you think this may cause an air pocket / hot spot to the right above the HG / head where there is no true flow through

Hope your understanding what I'm trying to get across. !

[Andy F]

The Rev1/2 heads have a channel around the combustion chambers, right? So if you're fitting a Rev3 head (which has holes, not a channel) onto an earlier block, would you not just make sure that the holes on the HG line up with the holes in the head?

Theres just something ringing about the way the coolant is delivered through to the head thats different, I will see if I can work it out over the next few days.

Yes, I guess it would be a matter of lining up the holes with the holes in the head, where I'm coming from is ( I'll have to confirm this later ) the the water jackets around the cylinders supply the coolant through the HG, but then if you note.. ( again confirmation later - I could me completely wrong ) where it exits through the head is directly above the hole through the HG ? Now this hole say for this example is to the left of the cylinder( in the HG ), I'm sure the coolant is supposed to travel across the top of the gasket and exit to the right of the head..... thus a circulation flow across the area before exiting the head.

Now if the hole in the HG is directly above the hole in the head ( left for examples sake ), do you think this may cause an air pocket / hot spot to the right above the HG / head where there is no true flow through

Hope your understanding what I'm trying to get across. !

There i did it

What your saying is bang on i thinl JJ, i had a HKS rev2 HG at first, but Ian prefered to use a rev3 (standard) so we did.
At one point i had both HG and i laid them on top of each other and marked the different holes, sure there was more holes in the rev3 ???

[poyntesm]

Andy,

Now all you need is to get down the strip and fill in your 1/4 mile times.....Just finished the section and placed it live...You could be the one to knock JJ off the top spot.

Link is at the top beside the usergroup icon.

Regards
Esmond

IMOC-UK-Admin

[Andy F]

Andy,

Now all you need is to get down the strip and fill in your 1/4 mile times.....Just finished the section and placed it live...You could be the one to knock JJ off the top spot.

Link is at the top beside the usergroup icon.

Regards
Esmond

IMOC-UK-Admin

As soon as the overheating problem is sorted...........im off

[Andy F]

Have you tried jumping on the gt4OC.... theres a few ST185's with St205 heads on... basically what you've done.... see if they've experienced any coolant problems ?

Well had a couple of replys 1 guy said his doesn't overheat but it throws water out of the expantion bottle, then someone else said they had no problems, both use rev3/ HKS gaskets and ARPs

[michael]

What happened to the previous number 1 time?

[poyntesm]

What happened to the previous number 1 time?

People have to enter their times themselves, once they do they will appear in the list. So whoever was first needs to enter their time back in. Sorry but I am too lazy to re-enter the old data.

Regards
Esmond
IMOC-UK-Admin

[michael]

Silly me, I forgot that the 1/4 mile info is on our new profiles, I thought you'd just imported the old stuff across

Looks good anyway

[stevecordiner]

Andy I thought you had a gen 4 caldina 3SGTE head not a rev 3 head?

[JJ]

"Well had a couple of replys 1 guy said his doesn't overheat but it throws water out of the expantion bottle"

eerrrm.. isn't this overheating !!

Let me elborate - coolant being pressurised, temp will go up !

"Andy I thought you had a gen 4 caldina 3SGTE head not a rev 3 head?"

Steve, the area of the bolting up to the block is the same, the gen 4 caldina heads differed on the intake ports being somewhat larger

[stevecordiner]

Ahaa

[ENSMR2]

Great results Andy.

So am I right in saying you've relocated the ic to the other side of the engine bay ie the side where the induction kit is? Doesnt this block flow to your induction kit/box? Or do you mean youve moved it backwards?

Can I see a piccy of this so I can see where youve run the piping etc.

Cheers.

[michael]

The mentalist has also relocated his induction kit.

[Andy F]

http://www.megaboost.co.uk/andy/andy-ic-00.jpg

Had to elbow the inlet to point down

[ENSMR2]

http://www.megaboost.co.uk/andy/andy-ic-00.jpg

Had to elbow the inlet to point down

So the intake is right down by the vent?

does the ic get enough air to it up there then?

Has this fabricating increased lag in anway? I suppose you cant tell unless you had it set up the normal way first of all.

[Andy F]

Andy I thought you had a gen 4 caldina 3SGTE head not a rev 3 head?

Hi Steve
No mate rev3, its giving me some grief tho

You asked about the rev limit...............dont know, next time i go i should have bigger injectors, this bloody water thing sorted and up the rev limit, should be on the way to 500 i hope