Do i need it or get rid?

Oedipus Rex · August 22, 2007, 04:04:13 PM

what about stock twins with the engine ported?

Pip seemed to have real trouble bringing my boost under control on stock twins, decat, downpipe and a street port. Put a bigger pill in, still couldn\'t do it. I ended up buying a SBC ID from ebay to bring it under control eventually.

Carl · August 22, 2007, 05:30:31 PM

Quote from: Oedipus Rexwhat about stock twins with the engine ported?

Pip seemed to have real trouble bringing my boost under control on stock twins, decat, downpipe and a street port. Put a bigger pill in, still couldn\'t do it. I ended up buying a SBC ID from ebay to bring it under control eventually.

When I port the engines even on stock twins my ports are much bigger than I have seen from anyone else and I have had no trouble getting boost under control with Apexi ecu on any that I have built.
Regards
Carl

Hayward North · August 22, 2007, 07:12:15 PM

Quote from: CarlAlso what is the point of running 10psi with an open exhaust?
The reason for mods in the first place is to make more power,with the same boost pattern the power hike would be nominal.
Around 0.9 to 1 bar boost is safe on stock twins with the right map.
Regards
Carl

There are a lot of people who would disagree with you, you only have to troll the RX7club.com forum to see.

Even Chuck westbrook the guru from the US advised me to get a boost controler to keep things under control with a open exhaust and the standard twins.

I take my hat off to you if you achive this on every car you deal with but for the general public who duznt have your knowledge its better to keep the boost under control imo.

Hayward North · August 22, 2007, 07:15:23 PM

The original question was aimed at weather he should take it off, your advising him to do so as he duznt need it, that COULD mean a blown engine, your happy to let him risk that ? on your head be it.

I say keep it or take it to carl to map out.

Carl · August 22, 2007, 07:23:30 PM

So how do you control the boost with an aftermarket boost controller?
Simply by playing with the settings until you gain boost control.They don\'t do it straight away out of the box but you have to sort them by playing with the available parameters of control.
Same applies to the Apexi ECU,it does exactly the same as any boost controller in that it controls solenoids for opening and closing of the wastegate,only difference is that it uses stock solenoids to do it.
Using an after market controller works yes,but so does, as I have said a "Properly Mapped" Apexi,which means playing with boost control settings to get control during tuning.
All I can reiterate is that as yet I have not come across any that I have not been able to get control of.
Regards
Carl

Carl · August 22, 2007, 07:24:37 PM

Quote from: steve garbuttThe original question was aimed at weather he should take it off, your advising him to do so as he duznt need it, that COULD mean a blown engine, your happy to let him risk that ? on your head be it.

I say keep it or take it to carl to map out.

Bit strong that Steve.
Regards
Carl

interloper393 · August 22, 2007, 07:29:07 PM

id be more than happy to take my car to Carl but its like a 7 hour drive for me

Hayward North · August 22, 2007, 07:38:20 PM

Quote from: interloper393id be more than happy to take my car to Carl but its like a 7 hour drive for me

Dont get me wrong i dont doubt that he can do what he says, i to would love to have my car maped by carl but not all us can afford his knowledge as the round trip and mapping would be exspensive.

Im probably right in thinking it couldnt be maped out with just a standard maping sesion.

So if its running fine then leave it on :Laugh

Hayward North · August 22, 2007, 07:44:22 PM

Also i would love for carl to have a look at my map with my logs and mod list to see what he thought

I started with a safe map from a very reputable person only with only a list of my mods (got the map via email) and i have slowly tuned my car myself from 10psi to 13psi opeing up the exhaust, induction and loads of other mods.

Hayward North · August 22, 2007, 07:56:57 PM

Quote from: CarlBit strong that Steve.
Regards
Carl

Appologies but it was a very simple question that was answerd without all the knowledge you have attached.

The answer i sore but not in as manny words was " you dont need it take it off".

Im sure you will agree with me in that he should not just take it off.

Like i say Appologies if it sounded strong but im sure you know that posts can be read in manny ways, read my posts again with a smile and a beer and you will see them as i wrote them.

Maybe if i included more smilies

Oh and debate is my way of gaining knowledge, i have learned something here

Hayward North · August 22, 2007, 07:59:50 PM

Quote from: CarlSo how do you control the boost with an aftermarket boost controller?
Simply by playing with the settings until you gain boost control.They don\'t do it straight away out of the box but you have to sort them by playing with the available parameters of control.
Same applies to the Apexi ECU,it does exactly the same as any boost controller in that it controls solenoids for opening and closing of the wastegate,only difference is that it uses stock solenoids to do it.
Using an after market controller works yes,but so does, as I have said a "Properly Mapped" Apexi,which means playing with boost control settings to get control during tuning.
All I can reiterate is that as yet I have not come across any that I have not been able to get control of.
Regards
Carl

You must admit a boost controler is very simple to understand compaired to a PFC ?

Like i say read my posts with a