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Running a LET at 2 bar

4K views 116 replies 24 participants last post by  TOBYC 
#1 ·
OK, what stops you from doing this? As Turbo engines hit high boost levels they tend to hit their 'limit'. Now what stops a LET running at 2 bar? Is it pressure (2 atmospheres breaches the head gasket or something like that) or is it because the mixture and the engine just get too hot and can't be cooled enough?
 
#53 ·
Chris_H42 said:
As the new boy I am trying not to step on toes or anything, but I can appreciate the annoyance of trying to explain things to people that don't want to listen. I may have pissed off a few people and if I have then sorry.

I used to get people (kids with their nova's and so on) asking me questions cos I knew what I was on about. They read crap in the comics and take that as gospel. Every mag I have read contains at least some crap. I used to sit and talk to them, being as simple as I could when they would then ask the same question but worded differently or "would a chip sort that?" or some other crap statement. Now I just say F*** off.

I have all the time in the wolrd for people who want to learn though. I am not a patient man but if someone asks then and actually want to learn and listen then I will talk to them, not a problem.

Its just when you get the constant barrage of "my mate who changed a spark plug told me this" it really gets to you.

Prime example is 2 headgaskets. I would regard that as a botch.

I think ATC is just fed up like i am of saying somethign that is right then some muppet coming along and questioning it cos the latest Max Power or whatever said something else.

Chris:)
Well said, but theres no space on this board for people who actually know what they are talking about, If you cant quote from max power(ladybirds book of tuning for under 5's)then im afraid your in danger of being chucked off this post.
 
#54 ·
Turbo nutter said:
Blimey, Phase kit owners to the rescue.

all 2 of you, I never new there were that many out there.
I want to see you at the TV day this year to show us how fast this gsi of yours is on the strip, then i will be convinced! what power is your putting out by the way?
 
#55 ·
Well said, but theres no space on this board for people who actually know what they are talking about, If you cant quote from max power(ladybirds book of tuning for under 5's)then im afraid your in danger of being chucked off this post.
As a moderator this post will stay open, TBH it has been very sensible by Mig standards lately!:D
 
#56 ·
Turbo nutter said:
Well said, but theres no space on this board for people who actually know what they are talking about, If you cant quote from max power(ladybirds book of tuning for under 5's)then im afraid your in danger of being chucked off this post.
Are you ATC's alter ego? Hank? Is that you? lmao
Only joking.

ATC certainly offers a nice product/service. And would be the route I would take if I had a LET and the money. But all these posts are doing no favours for the company image. Odd really, I would have though MIG is a very good indirect advertisment.
 
#57 ·
RDS said:
I want to see you at the TV day this year to show us how fast this gsi of yours is on the strip, then i will be convinced! what power is your putting out by the way?
looking foward to it matey, the beauty of Autronic is i can run it on any power/torque i want just by altering the map, but im sure what ever figure it is, it will be more than enough.
 
#59 ·
Just outta interest what sorta time do you expect to be turning in considering your power to weight ratio? I am interested what you would expect to see with your setup! I will be genuinely pleased to see you breaking late 12's if thats what you are aiming at!

Rob
 
#61 ·
Truth be told I only had a quick glance at ATC's site. Not a detailed read. but fromt he breif glimpse it looked good. I have been blessd with an ability or being able to smell BS from a mile and a quick glance at the site is usually all I need to know if the guys worth arguing/talking to!

If people want to learn then fine I can waffle on about very boring things like cooling systems and why just optimising the coolant flow will gain power and so on.

Chris
 
#62 ·
Chris are you seriously telling me that a vauxhall 2.0 16 ECOTEC will run 2.7 bar on standard internals? If you do i seriously doubt some of your credabililty too, and you are very credible upto this point;) The cossie lump doesnt even like these sort of pressures and you are having to spend 10-15k to even make the cossie lump reliable enough, let alone a C20XEV engine to be running this sorta boost pressure and looking at power figs of circa 500hp which vauxs shitty gearboxes would be going bang at as well!
I am a fairly realistic sorta person and i am happy with my mid 13'sec quarter mile time last year which i am sure i will bust easily this year once i have the phase 4 all sorted out! :)
 
#63 ·
No RDS I never said that. Couldn't you tell from my earlier posts? There was some sarcasm there.

I wouldn't trust any stock engine with 2.7BAR for more than a few seconds. Split bores etc.

But hey if his manages it then there you go!

I have on occasion seen some silly pressures being endured by engines. The RS500 I was tooling about in had a seized actuator, we got it running and when the boost got silly high and all 8 injectors were running once it went over 3 BAR, the turbo blew to bits though about an hour later! lol The MAP sensor blew apart as well.

The YB was rebuilt shortly after this and was an in properly and with sensible boost levels and a nice big hybrid with a nice dollop of lag thrown in. If a cossie doesn;t have lag then its just not right!

Chris
 
#64 ·
ChrisB said:
Are you ATC's alter ego? Hank? Is that you? lmao
Only joking.

ATC certainly offers a nice product/service. And would be the route I would take if I had a LET and the money. But all these posts are doing no favours for the company image. Odd really, I would have though MIG is a very good indirect advertisment.
Atc are in no way shape or form responsible for my posts,
I have bought Atc products purly because i want to go as fast as possible with no compromises.
results of his recent projects speak for themselves.
 
#66 ·
Turbo nutter said:
Atc are in no way shape or form responsible for my posts,
I have bought Atc products purly because i want to go as fast as possible with no compromises.
results of his recent projects speak for themselves.
Thats fair enough, and i respect that! As i have said many times i am willing to consider all routes with engine tuning and im sure when someone lets me go in an ATC car i will be convinced also:)
 
#67 ·
Turbo nutter said:
Atc are in no way shape or form responsible for my posts,
I have bought Atc products purly because i want to go as fast as possible with no compromises.
results of his recent projects speak for themselves.
Fair enough, thats what I thought. I don't understand why you need to post the "EDS is crap, MIGWeb users are dumb" stuff in every LET thread though. :rolleyes:

I'm with Rob, i'd like to see the ATC stuff do what it should at santa pod or wherever. Proof is in the pudding as they say. :D
 
#68 ·
Nova_Turbo said:
Seriously Rob, the Autronic probably has a ¼ mile time setting.
It does everything else
I thought ATC was the best until I installed EDS management!

Im not sure whether this post is a poor atempt at humor or whether your being serious?

however i think you and i both know that the signature to the post is abit much, have you ever tryed out an Atc developed car for yourself?
if not, you cant make coments like that without proof.

I have had experience with phase kits and i cant say i was impressed with the results I got. hence my signature.
 
#69 ·
Chris_H42 - Reading through this post you've not insulted anyone and have nothing to appologise for, don't worry.

ATC and Turbo nutter - Will you stop implying that we are all stupid because I for one am getting pretty bored of it. Wow mappable managment is better? This is no surprise to anyone, we all know its better, people don't use it because they either don't want the agro of mapping it or they can't afford it.

Oh and guess what...thats allowed :eek: And even more surprising, someone who purchases a fixed map chip may still actually know something! :eek:

I would be very interested in seeing an ATC car on a 1/4 mile run, anyone actually got any times?
 
#70 ·
Cool Rob.

Got a mate (renault mate) whos up from england coming to see me on thurs! Gits watching the footy meeting me (and I am lowerignhis torsion beam AFAIK) then hes off up north skiing! lol

I have seen theres a few members from up here, theres no ren guys though.

Ahh well.

Chris
 
#71 ·
I think Rob was using a hint of sarcasm, as his Nova with phase 3.5 will sit on the limiter in 5th gear for a past time!
That car of his see's off just about anything thats on the road as well;)

Did you program the ECU yourself on the Autronic or did you have a rolling road sort your car out Turbo Nutter?

Ps what the feck is your christian name as calling you turbo nutter is silly!

Rob
 
#74 ·
Hi my name is jon,

I am slowly starting to learn the art of mapping, however I can't take credit for Atc's work.
Greame did indeed map the vehicle initially on a rolling road and then finished off on the dear queens highways(welllll what else do we pay our road tax for it certainly aint for fixing the roads)

I appolagise for implying thatallpeople on Mig web are stupid, as clearly now its only some i regard as a bit silly sometimes. Only the other day a post was started that involved discussions on how heavy certain makes of wiper blades were-What the fek was all that about?

quote:- Cemesis
ATC and Turbo nutter - Will you stop implying that we are all stupid because I for one am getting pretty bored of it. Wow mappable managment is better? This is no surprise to anyone, we all know its better, people don't use it because they either don't want the agro of mapping it or they can't afford it.

I must stress again that I have nothing to do with Atc apart from buying his products, if you keep mentioning this your going to get me in trouble.
 
#76 ·
After reading posts on here which were quite persuasive jhon bought his phase kit and suffered no end of problems.

I had the opertunity to do the car and he will be happy.

If he wants to brag about his car and persuade others , then let him thats allowed too right,

My posts are not intended to offend, they offer a balance to the altrenatives, i only mock some of the methods employed by some of the users not imply that they are stupid.

RDS, ChrisB, you both have on occasions have implied in posts that I have no idea. you have both pointed out that the Autronic systems are a joke

If someones opinion does not agree with yours are their comments not valid?

It strikes me that people are affraid of what they dont know, excuse the alternative purely on cost


My cav does indeed run 40 psi, yes it is on pump fuel and it has steel internals.

regarding this, the only car i know of is a "tuned" road cossie from MAD

I have employed the same methods as MAD he uses Autronic too surely that is testimonial enough?

.


As for the space shuttle joke , that was bad taste you should be ashamed
 
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