what turbo?
23-06-2007, 08:41 AM
#1
PassionFord Post Troll
Thread Starter
what turbo?
hi there basically my engine was built to the same spec as a rally engine and the turbo the same. its an md240. ive searched this and it should flow enough for 450hp but the back housing externally is the same as a t28 escos! the engines are obviously built for quick spool up time but no top end power?? as it was on full boost (36psi) by3000 rpm. i want to use it for drag racing i hope
it high comp, think 9.1 : 1, massive custom cams, inlet more than exhaust, isky springs, lots of head work- massive inlet ports, think thats all you need to know. what spec turbo should i go for as i want to change.
it high comp, think 9.1 : 1, massive custom cams, inlet more than exhaust, isky springs, lots of head work- massive inlet ports, think thats all you need to know. what spec turbo should i go for as i want to change.
23-06-2007, 12:09 PM
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Originally Posted by tabetha
Yep way too high at this, the amount of boost you could run would be tiny, before det.
tabetha
tabetha
Yes, i agree, but rally cars use a high compression ratio so how does this work?
Pete.
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23-06-2007, 12:50 PM
#8
PassionFord Post Troll
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Originally Posted by tabetha
Yep way too high at this, the amount of boost you could run would be tiny, before det.
tabetha
tabetha
23-06-2007, 12:52 PM
#9
PassionFord Post Troll
Thread Starter
Originally Posted by Nash
What power are you after bud? Who are you going to give it to for mapping? I would ask them what they reccomend.
the engine was built and then the turbo specced afterwards. road and rally who built it said if you bolted a set of twin 50's on it would make 250bhp?!
23-06-2007, 12:55 PM
#10
PassionFord Post Troll
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the back housing just seems too small. it can het loads of air in thru the big front housing, big head and cams but surely restricted thru the turbo. motorsport said it should be around 450hp 500lbs torque when they mapped it but i think this is too high really
23-06-2007, 03:08 PM
#12
PassionFord Post Troll
Thread Starter
100% sure yeah, it had a 40psi guage was on air injectors and with them un plugged it did 30psi. it never went on the rollers thats why im a bit jubious at what motorsport claimed it was. it was my mates car before i bought it n re built it
23-06-2007, 03:22 PM
#13
PassionFord Post Troll
Thread Starter
Originally Posted by tabetha
36psi on 9.1:1 !!!, are you sure ?
What torque did it make ?
tabetha
What torque did it make ?
tabetha
23-06-2007, 03:24 PM
#14
PassionFord Post Troll
Thread Starter
end of day with turbo situation should i just get it mapped as it is and if the mapper (torque of the devil) says there will be good gains from a turbo swap then go for it then remap again?
23-06-2007, 10:34 PM
#15
9.1:1 is not high!!! Simon Norris built a YB with comp a bit higher than this that engine ran custom cams etc and a GT30 or 35 it made 632 bhp
Same with JEMS big power yb, build a n/a motor as well as possible then turbo it
With the flow of these turbos being greater and less restrictive heat it not too much of an issue so more comp can be used to create more power!!!!
IMO yes the 2wd manifold
Chris knows his stuff
Same with JEMS big power yb, build a n/a motor as well as possible then turbo it
With the flow of these turbos being greater and less restrictive heat it not too much of an issue so more comp can be used to create more power!!!!
IMO yes the 2wd manifold
Chris knows his stuff
24-06-2007, 12:55 AM
#16
PassionFord Post Troll
Thread Starter
Originally Posted by costina
9.1:1 is not high!!! Simon Norris built a YB with comp a bit higher than this that engine ran custom cams etc and a GT30 or 35 it made 632 bhp
Same with JEMS big power yb, build a n/a motor as well as possible then turbo it
With the flow of these turbos being greater and less restrictive heat it not too much of an issue so more comp can be used to create more power!!!!
IMO yes the 2wd manifold
Chris knows his stuff
Same with JEMS big power yb, build a n/a motor as well as possible then turbo it
With the flow of these turbos being greater and less restrictive heat it not too much of an issue so more comp can be used to create more power!!!!
IMO yes the 2wd manifold
Chris knows his stuff
24-06-2007, 10:04 AM
#18
Nothing wrong with Higher compression imo. Some people hate it but if you use Proper engine management and get it mapped correctly you shouldnt have a problem.
TurboShed Have a word with PJ motorsport i think they mapped Dave4x4 Escort, thats running a T4 on standard compression.
TurboShed Have a word with PJ motorsport i think they mapped Dave4x4 Escort, thats running a T4 on standard compression.
24-06-2007, 01:30 PM
#19
Originally Posted by TurboShed
So, not meaning to hijack this thread, on my standard CR bottom end, how do I go above 400bhp?
24-06-2007, 01:33 PM
#20
Originally Posted by Nash
Nothing wrong with Higher compression imo. Some people hate it but if you use Proper engine management and get it mapped correctly you shouldnt have a problem.
TurboShed Have a word with PJ motorsport i think they mapped Dave4x4 Escort, thats running a T4 on standard compression.
TurboShed Have a word with PJ motorsport i think they mapped Dave4x4 Escort, thats running a T4 on standard compression.
It all gose back to basic's (flow) in quick out quick and a quick ecu to cope with it all
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