ATTENTION all Speedvision Headgasket users!

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TurboDave

TurboDave

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What you found Adam is a definate problem but it is proving tricky to make a rad cap which will cover the hole properly.

I made one up and it is much better but I also snapped the overflow nipple off so I am now getting a new top welded on the rad which I will then be able to fit a normal rad cap on.

Dubs findings are interesting aswell although when off boost I would think that water would be sucked into the engine through the broken gasket.
 
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A

Adam_Glanza

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i no this is the problem :(

i tried like every rad cap i could think of but there all the same, none has a extended spring on it!

i was hoping i could get a custom one made but i dont no where from?

but im glad you managed to test it last time so i no where onto something lol
 
A

Aidan-G

Member +
Adam_Glanza said:
i no this is the problem :(

i tried like every rad cap i could think of but there all the same, none has a extended spring on it!

i was hoping i could get a custom one made but i dont no where from?

but im glad you managed to test it last time so i no where onto something lol
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your onto a winner there adam..
ive just checked it out,with a trd cap on a wepr rad,i can suck the water out of the rad no probs myself,(from the overflow pipe)
so i then put the same trd cap on my standard old radiator and tried to suck the water from the overflow pipe,and could not get anything!so where to get a good rad cap:confused:,cause im hoping it isnt my GH:(
 
Gee

Gee

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The rad cap I was using previously was from a Nissan 200sx S13. Have a look at one of those cap to see if they are extended?

Right now I am using the standard cap that came with my XS Power rad with no issues. Lots of people have this overflowing coolant issue. Some using standard rads and standard caps! Some using uprated turbo's, some standard turbo! Some with stock gasket and some uprated gaskets! So to try and say that a Speedvision HG is probably causing this problem is stupid.

There are a few theories as above which are valid suggestions, but people rant and rave but don't try what has been suggested or even acknowledge the theory!

It is very weird I do admit.

Oh and Dave, I am using Ross pistons.
 
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S

speedvision

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ben_j said:
No, not necessarily, because if he's keeping the system topped up like we had to we never saw temps over 90 degrees EVER on my cooling system.

and Sam.... wats your opinions, comments on the pictures?
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ben to see the pics of the gasket cut like that is very surprising indeed.after seeing that i would automatically assue bad overheating issues but as u said ur car didnt overheat so i will go by that...headgaskets are mass produced at 100's a time and maybe a few are slipped aside as being bad but in no way i can know this before i sell them to a customer..remember i do not make these but simply try to supply a quality product to the best of my knowledge and for a manufacturing company who produce these i cannot comment becuz i am not there to witnessed quality control..i will tell you they are made in california by a well known racing company in the USA. i am not allowed to give the name via a public forum and i hope u all understand this...

i would certainly blame the headgasket material and quality if all that were used were damaged but as u can see there are alot of them running high boost with no problem, so maybe the posibility of tuning, bad material, overheating, and a number of other factors which can play the role of it being damaged..

before it was produced i had a few samples which i tested on my race car and my cousin's race car...him a 4efte glanza and me a 5efte ep82....i have a gt28rs which ran 18 psi if i can rem correctly and he had a tdo4l or gt28r at the time...our climate is very hot at 80-90 degree f all yr long and we ran out standard radiator becuz we made manifolds to suit the stock rad.....these cars ran circuit and drag..mine the drag ..cousins the circuit car....after the results of them i had no reason to doubt the quality of the gasket....
this is all the info i can give on what i know..

sam
 
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ben_j

ben_j

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Adam_Glanza said:
guys i explained why it does this on the last thread that was going but u all shrugged it off except turbodave i think it was,

basically with the wepr rads that are used, the standard rad cap DOESNT cover the overflow exit, so when under load the extra pressure is being forced out into the overflow bottle.

i guarantee you if you have no fluid in the overflow bottle it wont happen.

if you take a look at your rad cap youll see the spring isnt long enough to cover the overflow hole.

turbodave ( i think it was him ) somehow adapted the cap and made it long enough to cover the hole and never had that problem again. im 99% sure that is wat everyone is having problems with.

and no the engine doesnt overheat its just due to the pressure escaping!

i unfortunately never got the chance to actually fix it as i had a prang in it a few weeks later but im pretty sure this is the cause. what do yo think
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It was dismissed because we dont not even have a WEPR rad. And on the old thread where jones36 did have he replaced it all and stil had the probs until the HG (headgasket) was changed.
 
ben_j

ben_j

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speedvision said:
ben to see the pics of the gasket cut like that is very surprising indeed.after seeing that i would automatically assue bad overheating issues but as u said ur car didnt overheat so i will go by that...headgaskets are mass produced at 100's a time and maybe a few are slipped aside as being bad but in no way i can know this before i sell them to a customer..remember i do not make these but simply try to supply a quality product to the best of my knowledge and for a manufacturing company who produce these i cannot comment becuz i am not there to witnessed quality control..i will tell you they are made in california by a well known racing company in the USA. i am not allowed to give the name via a public forum and i hope u all understand this...

i would certainly blame the headgasket material and quality if all that were used were damaged but as u can see there are alot of them running high boost with no problem, so maybe the posibility of tuning, bad material, overheating, and a number of other factors which can play the role of it being damaged..

sam
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Well there are no signs whatsoever of DET on the pistons , nor does my knock sensor alert me of DET (and yes it works).

I can 100% gaurantee my car has never overheated as i have greddy electronic data link gauges montioring everything in my car. As well as the standard gauge which has never shown overheating.

Also i monitor my car alot, i know my tune isnt to blame i have an AEM wideband in my car to show me my AFR's. And i have tested that gauge with others used on my car/and used at the dynos and i know its spot on. So can people stop saying its the tune. Its nothing but the headgasket simple as you can clearly see in the pictures. Now yes not all the gaskets have failed but a good few have. Maybe there was a bad batch that came out?!
 
A

Aidan-G

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what to do?

ive been trying to sort my problem out with still no joy..

i got a genuine civic rad and cap..bolted the wepr fan on it and used my trd cap..just filled up the rad and didnt put any water in the expansion bottle..even when the car isnt even fully warmed up it drips into the over flow bottle?

so i tried the civic cap and it was doing the same..this is all being done at idle mind you:flame:

so what do i do?its pissing me off now!should i get a new headgasket??
i cant tink of anything else to do or check?:homer:
 
Gee

Gee

Member +
The standard rad cap I got with my XS Power rad works fine. Maybe you got a dud or read a few pages back for the theory on why it can happen..
 
dantheman

dantheman

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i used a speedvision hg and had no probs for the time it was on the car, since put a big valve head on so bought a zep gasket and compared the 2 and they were pretty much identical to look at. use some 'wel seal' and it will be fine.
 
N

Nick@TD.co.uk

Registered Trader <a href="http://www.TuningD
dantheman said:
i used a speedvision hg and had no probs for the time it was on the car, since put a big valve head on so bought a zep gasket and compared the 2 and they were pretty much identical to look at. use some 'wel seal' and it will be fine.
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Well funny you said that, i compared the speedvision one to the cruise headgasket, and they did not look the same, the cruise one look far better quality and from what people have said zep and cruise ones are made in same factory.

~Nick
 
weeJohn

weeJohn

Lifer
Ben what sort of oil temps does your car run on the track and do you have an oil cooler, and are the tracks you use short and twisty or have they long straights?
 
Kelly

Kelly

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weeJohn said:
Ben what sort of oil temps does your car run on the track and do you have an oil cooler, and are the tracks you use short and twisty or have they long straights?
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Has a huge oil cooler oil temp never ever rises stays at 75 or 80 sorry cant remember exactly.

Tracks vary but the speedvision HG never made it to a trackday.
 
ryan_v

ryan_v

Lifer
kelly is your headgasket problem sorted? what gasket did you use? did you do anything different this time?
 
N

Nick@TD.co.uk

Registered Trader <a href="http://www.TuningD
ryan_v said:
kelly is your headgasket problem sorted? what gasket did you use? did you do anything different this time?
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Hey Ryan

My car is now sorted, running a Cruise Metal Headgasket with no problems or any signs of problems, held up perfect round track.

~Nick @ Tuning Developments
 
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