apexi or simtek
04 January 2009, 09:37 PM
#1
apexi or simtek
would like the anti lag feature, but i was told i cant due to my heads and shim over bucket, and that one may drop out, so damage engine.
is this true.
whats the real difference between them both in terms of getting more performace from car
is this true.
whats the real difference between them both in terms of getting more performace from car
04 January 2009, 09:50 PM
#2
I dont see why the anti-lag would cause the risk of loosing the over bucket shim. Surely only high revs would cause this. After all thats why the STI heads allow you to raise the rev limit over WRX heads. 
The way the anti lag would run is not "full blown" its more fuelling on over run.
From my understanding:-
Simtek allows for 2 full maps so you could have a map for 10% meths etc
But the Apexi is just as good if you only want 1 map.
You could always use an AVCR for a second boost setting. It also allows for in gear boost setting. - Not sure if the Simtek allows this???
Thats how I understand it anyway
The way the anti lag would run is not "full blown" its more fuelling on over run.
From my understanding:-
Simtek allows for 2 full maps so you could have a map for 10% meths etc
But the Apexi is just as good if you only want 1 map.
You could always use an AVCR for a second boost setting. It also allows for in gear boost setting. - Not sure if the Simtek allows this???
Thats how I understand it anyway
05 January 2009, 07:50 AM
#3
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Not had any issues with buckets; even on "full blown" ALS set ups on rally cars......Just a case of getting the map correct.
2 maps including 2 different boost levels if you wish.SimTek has full closed loop boost control; rpm adjustable, in gear variable targets and duty cycles.Also dispenses with MAF.
2 maps including 2 different boost levels if you wish.SimTek has full closed loop boost control; rpm adjustable, in gear variable targets and duty cycles.Also dispenses with MAF.
05 January 2009, 08:41 PM
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So just so I get this right in my mind, you can have anti lag on standard internals etc?
Or is anti lag to harsh for say my UK 2000. And best just go for some over run to get the pops and bangs or is it all the same?
Or is anti lag to harsh for say my UK 2000. And best just go for some over run to get the pops and bangs or is it all the same?
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05 January 2009, 08:49 PM
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05 January 2009, 11:20 PM
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so by dumping the avcr it wont have any affects on my boost thats great i wouldnt be bothered for 3 maps. 2 maps are usually more than enough one for low boost and one for high boost. the only disadvanatage for now is you wouldnt be able to monitor your boost. unless you look at your boost gauge, any news on the new handheld commander with simtek?martin,simon,or steve?
05 January 2009, 11:49 PM
#24
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Hello anger mate.
Simon, didn't realise there were three posting on here. The choices.
All I want to reach is about 320 maybe a tiny bit higher, bit worried as mine is only a UK turbo. Which turbo is good for this, and anything else I need to go for. Stuff I already have is, full decat, fuel pump, ported headers, I also have a bigger top mount soon to be going on.
Simon, didn't realise there were three posting on here. The choices.
All I want to reach is about 320 maybe a tiny bit higher, bit worried as mine is only a UK turbo. Which turbo is good for this, and anything else I need to go for. Stuff I already have is, full decat, fuel pump, ported headers, I also have a bigger top mount soon to be going on.
06 January 2009, 12:02 AM
#25
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VF34 would be top choice for that imho.. followed by vf35.. td05 16g is also a good option.. the older VF's will also do it but are not as strong but can be picked up very cheap.. vf28, vf29 etc
Simon
Simon
06 January 2009, 09:42 AM
#26
As Simon has mentioned a VF28 or VF24 will get you around the 320BHP mark and are alot cheaper then the later VF's
IMHO the simtek is a bit overkill if your target is only 320BHP. but then I suppose if you must have anti-lag/launch control then it's your best choice (although you have to pay extra for the ALS/Launch control hardware).
Also be aware that the VF's are not as strong as the TD range.
The VF's have been know to spit blades just by the back pressure caused running without a Dump Valve.
IMHO the simtek is a bit overkill if your target is only 320BHP. but then I suppose if you must have anti-lag/launch control then it's your best choice (although you have to pay extra for the ALS/Launch control hardware).
Also be aware that the VF's are not as strong as the TD range.
The VF's have been know to spit blades just by the back pressure caused running without a Dump Valve.
06 January 2009, 11:14 AM
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As Simon has mentioned a VF28 or VF24 will get you around the 320BHP mark and are alot cheaper then the later VF's
IMHO the simtek is a bit overkill if your target is only 320BHP. but then I suppose if you must have anti-lag/launch control then it's your best choice (although you have to pay extra for the ALS/Launch control hardware).
Also be aware that the VF's are not as strong as the TD range.
The VF's have been know to spit blades just by the back pressure caused running without a Dump Valve.
IMHO the simtek is a bit overkill if your target is only 320BHP. but then I suppose if you must have anti-lag/launch control then it's your best choice (although you have to pay extra for the ALS/Launch control hardware).
Also be aware that the VF's are not as strong as the TD range.
The VF's have been know to spit blades just by the back pressure caused running without a Dump Valve.
Simon
06 January 2009, 11:30 AM
#30
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I changed over from a powerFC to a Simtek, I didnt plump for anti-lag (pointless and just for show in 99% of cases) or launch control (not necessary unless chasing hundreths on the drag strip) as they were cost options I didn't deem necessary.
I cant say whether I've noticed a difference or not as I'm only 75% of the way built and mapped, but you could ask my mapper to comment as he knows waaaay much more than me
running 415bhp 420ft-lbs
I cant say whether I've noticed a difference or not as I'm only 75% of the way built and mapped, but you could ask my mapper to comment as he knows waaaay much more than me
running 415bhp 420ft-lbs