All the way on stock internals....

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V8Killer
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Re: All the way on stock internals....

Post by V8Killer »

Andy Conroy wrote:
V8Killer wrote:Andy...

not trying to come across as a d1ck mate, its all good pushing the engine to its limits, but do you know what is involved in rebuilding an engine to a high spec? Are you understanding the cost of parts, labour (assuming your not building yourself), the cost of machining, etc etc etc?

But...good luck to ya...your gonna need it :?



As Pete says i am well aware of any costs that will be brought upon me IF THE THINK WILL BLOW? I am an adult and i'm not the average run of the mill chav who just turns up the boost without looking into anything else... Allot of theory and research has been put into the Project and every upgrade will be tested and monitored....... :)


Thanks for all the comments, they are well appreciated and everything has been took into consideration, Cheers Guys!


Really look forward to the results :shock: :o :D
M5
V8Killer
Posts: 1678
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Re: All the way on stock internals....

Post by V8Killer »

firstmk1 wrote:Peter, I'm guessing some people don't know your engine building history or the number of current projects you have?


Maybe this will be a good oppurtunity to chime in, Peter? Maybe you can push some business your way :D

Give us an idea of your history? Many 3SGTEs? What are the current projects?

Cheers
M5
Fred

Re: All the way on stock internals....

Post by Fred »

Happy New Year :D .

I've just read the thread and noticed a couple of people mention uprated head gaskets .
This started me thinking about 'Wills Rings' and I was wondering if anybody has any experience with these (I don't).

For those of you who don't know , they are gas filled rings that fit into grooves that are machined into the block/head that surround the combustion chamber , they are supposed to be VERY reliable at preventing head gasket failures due to high chamber pressures .

I haven't heard them mentioned in years and don't know if it's because they are more difficult to fit than the benefits they offered .

Also , with having to machine grooves into the block/head , maybe this is has the potential of creating weakness in the head/block due the material being removed , who knows ?

On a similar vein , my buddy told me his Escort Cosworth had a metal rubber laminate head gasket which allowed some movement under thermal expansion/contraction , stopping the 'seal' being broken , is there anything similar available for the 3SGTE ?

Cheers , fred .
GeoffC320
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Re: All the way on stock internals....

Post by GeoffC320 »

Fred,

I've heard of the method you mention but only on Cosworths, never on a 3S-GTE. I think the reason for this is that there are well-established alternative headgaskets which provide all the reliability we need.

In fact the Revision 3 standard gasket is extremely good compared to the Rev1/2 item and has only rarely been known to fail (so I understand).

On the general topic of this thread, one thing I have noticed is that compared to other engines such as Cosworth/Renault 5 turbos etc, the MR2 crowd rarely seem to run 'excessive' boost (like 2 bar+). Now I know several people on here have experienced cracked blocks at 1.4-1.6 bar (Muhsin, Jonno) and wonder if it's just not a good idea to run much more on this engine.

From what I can gather the phenomenon of the cracking blocks has never been adequately explained nor has any 'reliable' method of avoidance been identified. To me this means that probably all anyone will ever know is the limits of that particular engine.

I'm assuming from what I've read above that this engine is being prepared with a turbo that flows a healthy amount of air compared to CT-series, with all appropriate supporting mods. Therefore the next logical step (bearing in mind this will produce good power with relatively low boost levels) is to up the boost and see how much she'll take (since 400bhp+ seems to be the aim).

From my dealings with Peter I have plenty of confidence that mechanically all will be done to an excellent standard as the boy knows his stuff. I do feel that it's the mapping that will be 'make or break'; experience with my own engine tells me that when set up by the right person the engine can run reliably at 1.2 bar even with stock turbo & IC so don't see why higher levels can't be reliable if all else is upgraded - with the block cracking issue maybe being the only fly in the ointment.

Await the results with interest.
RaceDesign(NiteraMR2)

Re: All the way on stock internals....

Post by RaceDesign(NiteraMR2) »

were Muhsin and Jonno using the early thinner wall blocks or the later thick wall?

Also, did they use oversize pistons at all?

Just wondering
Hellboy

Re: All the way on stock internals....

Post by Hellboy »

my 2 pence.

Stock engines internal with supporting mods and decent tune can and will run big boost.

But it will fail at somepoint if abused, same goes for some dogs b0ll0x engine!! it Murphys law , what can go wrong will go wrong.
Its called pirmid effect. the more power you give a engine the longevety will go down if you make massive power all the time.
Its not a BHP number that will kill a engine its a detonation theshhold, exceed that and any engine is dead you could have the bestest strongest block , but it could be killed a number of things letting go.

I know a man that holds the UK record for 1/4 mile for Renault 5 GTTs, this engine in its NA form produces 70 to 80 HP (turbo form 120BHP)
This engine dates back to 1940s(block pistons and head!!) its a push rod , carb fed engine 8v with a crap head bad inlet manafold and exhasut manfold, has no piston oil sprays nothing fancy. Now in the R5 world its laden with as much mis information as the Mr2 world and most other car clubs. its all hear say.
The engine in the car in question runs 11.4 standing 1/4 miles and is road leagal. in the last year its has done over 200 1/4 runs on the same engine.
This engine runs stock Pistons, crank,oil pump,oil cooler, its been blueprinted and put together correctly. It runs a GT28r RB turbo , at 2.5bar!!!! its head and exhaust manfold have been gasflowed and matched.
Now it has no fancy managment or EFI, it still runs a Solex DIS 32 Carb for fueling and still has stock distributor and stock leads.
It makes 290HP at the wheels.

Now my point is that on a well put together and setup engine as bad as the C1J and as dated as it is you can do things that will take abuse if setup right.
With the fact that the 3SGTE is a far more advanced engine and with far more advanced 21century forms of engien managment and ignition and cooling options theres is no reason that you cant do it right.

Sticking in Forges just to hide bad tuning that has killed a stock lump is a mistake. With Forges the tuner should be able to suppass and tune the engine even more before it reaches the point of BOMBING out( with supporting mods) at the moment to me at least Forges seem to be a easy answer to bad tuning. :)
Im not sayign Im right and others are wrong, but being around turboed motors for nearly 10years I have seen alot of bad information rear its head and people just lap it up cos they dont think or check things out for themselfs.
:D
jonb-
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Re: All the way on stock internals....

Post by jonb- »

Fantastic post Hellboy, this is a very interesting thread.

You know, i've never been that bothered that mines an NA (for a number of reasons, the main on being i'd not be much, if any quicker in my local twisties with a tubby and i do a lot of dull motorway driving which i thought the na would be better for) but reading all this has made me want a turbo transplant rather a lot just so i can play with all these mods and toys. That's for another thread entirely though.
Bender Unit
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Re: All the way on stock internals....

Post by Bender Unit »

I back andy going to mod it on standard internals, as long as the fuelling and cooling etc all there give it a try

mine's only being rebuilt because it blew up (ringland destroyed which cracked the piston) otherwise i'd be running approx 400bhp on standard internals

good luck to you bud


Just to carry on from what Screech has said I seriously think that his engine failed due to a split in the vacuum line leading to the FPR. Meaning that fuel pressure wasnt rising in accordance with boost pressure, it under fuels, massive detonation and two dead pistons. However mapping shouldnt be ruled out as they should have spotted this IMHO?
aaronjb
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Re: All the way on stock internals....

Post by aaronjb »

Hellboy wrote:I know a man that holds the UK record for 1/4 mile for Renault 5 GTTs, this engine in its NA form produces 70 to 80 HP (turbo form 120BHP)


Totally off topic, I know - but who owns that one? Ages since I was in the R5 scene, just wondering if I still know them :)

(Last time I checked Sparkie had a pretty quick car, as did Mark @ MS Motorsport, and a couple of others - wonder if they're still around :))
Hellboy

Re: All the way on stock internals....

Post by Hellboy »

Good old golden fingers Mark "Sparkie" Branston! lol , hes a good mate.

The guy that hold the 1/4 mile record is a chap called Stuart Clarke, home built and devloped.

Mike Spencer runs his own business (horror stories LOL) and manged 12.1 secs last year, but now every man and his dog are hitting 12s last year - Without rip off tuners help.

I even built a 5 Campus , modified the the campus bottom end ( angle grinded the pistons to low comp lol) whacked on turbo head , built a carb and whacked on a T25 turbo i had lying around and hit a 13.7 ( on 145 section tyres lol) 1/4. All for under £100 cost including the car off ebay. \:D/

check out the runs
http://www.pmtrackdays.co.uk/vids/camparse.wmv
http://www.pmtrackdays.co.uk/vids/camparse2.wmv
http://www.pmtrackdays.co.uk/vids/camparse3.wmv
http://www.pmtrackdays.co.uk/vids/camparse4.wmv
http://www.pmtrackdays.co.uk/vids/camparse5.wmv
http://www.pmtrackdays.co.uk/vids/camparse6.wmv
http://www.pmtrackdays.co.uk/vids/camparse7.wmv

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aaronjb
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Re: All the way on stock internals....

Post by aaronjb »

Hellboy wrote:Good old golden fingers Mark "Sparkie" Branston! lol , hes a good mate.

The guy that hold the 1/4 mile record is a chap called Stuart Clarke, home built and devloped.

Mike Spencer runs his own business (horror stories LOL) and manged 12.1 secs last year, but now every man and his dog are hitting 12s last year - Without rip off tuners help.


Good to hear Sparkie is still around :) And no doubt still cobbling together bizarre combinations of parts and achieving astounding results (last clip I saw was the film of him on the dyno hitting stupid-rpm)

Stuart Clarke rings a bell, too.. can't think why, though.

And I meant Mike, not Mark.. d'oh #-o

And :lol: :lol: at the Campus :D
The Morris
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Re: All the way on stock internals....

Post by The Morris »

aaronjb wrote:
Hellboy wrote:I know a man that holds the UK record for 1/4 mile for Renault 5 GTTs, this engine in its NA form produces 70 to 80 HP (turbo form 120BHP)


Totally off topic, I know - but who owns that one? Ages since I was in the R5 scene, just wondering if I still know them :)

(Last time I checked Sparkie had a pretty quick car, as did Mark @ MS Motorsport, and a couple of others - wonder if they're still around :))


I had one, it broke every time i breathed on it :D
light

Re: All the way on stock internals....

Post by light »

Andy Conroy wrote:I'm going for 25psi with my ats td06 kit..... most of you will think i'm nuts.... but with the right amount of cooling and fuel and a good state on tune why not.....
:)


Hi, If ur mapping/tuning and the charge temps are good then the weakist link in the engine is the HEAD gaskit, that will go first.Because if the engine is mapped well with fuel/ignition and stable good charge temps the engine will not dett.What will happen is the high boost and extra fuel u have mapped for the car and not forgetting the stable cool charge temps will produce a stronger more powerfull combustion, the shear power and heat of the stronger combustion will eat at the head gasket over time and eventually it will need replacing when it shows signs of overheating.

The rev3 onward stock internals can run reliably even at higher boosts then 25psi at short terms and can produce huge power with the right IC, Turbo, Fuel, Ignition and management.Rest assure that if ur car is mapped well and charge temps are kept at resonable temp and stable the only thing that will pop is ur HEAD GASKIT after a long peroid of enjoyment.

Jeff Fazio's cars head gaskit went first before anything else did :-k its not that hard to work it out and JEF ran his car 200,000 [email protected] and he thrashed it good and proper, is'nt that saying something. :D 8)
light

Re: All the way on stock internals....

Post by light »

cantfindausername wrote:
Peter Gidden - sbITs wrote:
Andy is well aware of the proven limits of the 3S-GTE


What are the proven limits of the 3S-GTE?


Hi, the proven limits are around 500-600hp on stock internal, But not reliable everyday use, just the odd 7/8 drag runs until the head gaskit pops.
Boost wise around 2.1bar for short term and 1.5-17 bar reliably with the acception of the head gaskit going eventually.
End of the day its down to what decision a individual will take, fine tuning to around 1.5 to 2.0 bar is very very hard and requires skill and experiance.Results for one person may differ for another, no two engines are alike and I have to say if ur going to take the stock internals to 1.5/.17bar then u must be prepaired for the worst just incase things go pop.
If u have no budget problems and are not bothered if things go wrong, then go ahead.But if u are budget limmited then my advise is to stick to doing the job properly and go for a Forgie rebuild.
The Morris
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Re: All the way on stock internals....

Post by The Morris »

If you can afford to repair it, then go for it. Because it will go at somepoint. and if you are lucky it might just be the HG
light

Re: All the way on stock internals....

Post by light »

The Morris wrote:If you can afford to repair it, then go for it. Because it will go at somepoint. and if you are lucky it might just be the HG


That depends on how well its tuned, the risk is always there and no tuner can guarantee tuning without risks.Its down to the individual decision.Then again things can go wrong which ever way u go as there are so many unfortunate miss haps that happen to the cars that are not even linked to dett and the engine pops eg, oil pump failure, oil leeks and so on. :roll:
Mikejc
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Re: All the way on stock internals....

Post by Mikejc »

light wrote:
cantfindausername wrote:
Peter Gidden - sbITs wrote:
Andy is well aware of the proven limits of the 3S-GTE


What are the proven limits of the 3S-GTE?


Hi, the proven limits are around 500-600hp on stock internal, But not reliable everyday use, just the odd 7/8 drag runs until the head gaskit pops.
Boost wise around 2.1bar for short term and 1.5-17 bar reliably with the acception of the head gaskit going eventually.
End of the day its down to what decision a individual will take, fine tuning to around 1.5 to 2.0 bar is very very hard and requires skill and experiance.Results for one person may differ for another, no two engines are alike and I have to say if ur going to take the stock internals to 1.5/.17bar then u must be prepaired for the worst just incase things go pop.
If u have no budget problems and are not bothered if things go wrong, then go ahead.But if u are budget limmited then my advise is to stick to doing the job properly and go for a Forgie rebuild.


Are you for real buddy? Unless you can show me an example of the 3S-GTE making the said 500-600 bhp running standard engine internals then I suggest you rethink the advice you offer!? As for 1.5-1.7 bar being reliable on standard internals, (standard HG or not) again I ask for proof!? Infact i'll save you the time of looking for some as I can tell you know, it doesn't exist. Show me a 3S-GTE running more than 1.4 bar with standard internals and I tell you know it's on borrowed time! Regardless of how good the map is and the supporting mods :roll:

In point of fact you'll find that tuning is somewhat of a lottery. The risks of the engine letting go increase ever more the further you step from the standard outputs....fact! Now we all know that these risks can be limited by the application of good solid tuning in relation to carefully chosen parts, but still the risk is ever present!

Worst advice I think i've ever read on this site to date that Light =; [-X

Mikejc
The Morris
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Re: All the way on stock internals....

Post by The Morris »

We should have a poll on how many miles we think it will last.

Every car ive had that ive increased the pereformance on has blown a head gasket. its got to go somewhen.

I go for 1000 miles.
light

Re: All the way on stock internals....

Post by light »

The Morris wrote:We should have a poll on how many miles we think it will last.

Every car ive had that ive increased the pereformance on has blown a head gasket. its got to go somewhen.

I go for 1000 miles.


I gofor 200,000miles proven by Jef Fazio US and just the head gaskit went, the car was running 1.5bar of boost and was thrashed.
light

Re: All the way on stock internals....

Post by light »

Mikejc wrote:
light wrote:
cantfindausername wrote:

What are the proven limits of the 3S-GTE?


Hi, the proven limits are around 500-600hp on stock internal, But not reliable everyday use, just the odd 7/8 drag runs until the head gaskit pops.
Boost wise around 2.1bar for short term and 1.5-17 bar reliably with the acception of the head gaskit going eventually.
End of the day its down to what decision a individual will take, fine tuning to around 1.5 to 2.0 bar is very very hard and requires skill and experiance.Results for one person may differ for another, no two engines are alike and I have to say if ur going to take the stock internals to 1.5/.17bar then u must be prepaired for the worst just incase things go pop.
If u have no budget problems and are not bothered if things go wrong, then go ahead.But if u are budget limmited then my advise is to stick to doing the job properly and go for a Forgie rebuild.


Are you for real buddy? Unless you can show me an example of the 3S-GTE making the said 500-600 bhp running standard engine internals then I suggest you rethink the advice you offer!? As for 1.5-1.7 bar being reliable on standard internals, (standard HG or not) again I ask for proof!? Infact i'll save you the time of looking for some as I can tell you know, it doesn't exist. Show me a 3S-GTE running more than 1.4 bar with standard internals and I tell you know it's on borrowed time! Regardless of how good the map is and the supporting mods :roll:

In point of fact you'll find that tuning is somewhat of a lottery. The risks of the engine letting go increase ever more the further you step from the standard outputs....fact! Now we all know that these risks can be limited by the application of good solid tuning in relation to carefully chosen parts, but still the risk is ever present!

Worst advice I think i've ever read on this site to date that Light =; [-X

Mikejc


Mike, I gave advice with also saying there is a risk if things go wrong, weather this advice is taken or not its down to the individual who makes the decision, the riska are there.

As for proof, Jef Fazio's car stock bottom end producing 440rwhp which at the fly wheel might be around 500hp, And if thats not inuf then Xxxx run his car with stock internals producing 11.26 1/4 @1.893 60ft, to get that kind of 1/4 time u have to be producing around 500-600 flywheel horse power. :roll:
I,v given advice on certain facts, but also have mentioned that risk is there and that u can run rev3 stock internals at 1.5/7 bar reliably without dett and eventually the only weakist link the head gaskit will go.
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