[Mk2] [Turbo] rev1 boost presure on std fueling.

[redmr89]

rev1 with..

ct20
extreme boost downpipe
s/s exhaust
blitz filter
xs power intercooler + hard pipes
magnecor leads
colder plugs
grainger valve
standard fueling and afm

my understanding is that any more than 13-14 psi, the ecu throws 100% duty on the injectors.. thus overfueling.

so the question is. is there any point turning my grainger any higher than 13psi? is it gonna give any more power at all due to the overfueling??

second question is .. if i cant turn it any higher.. was there any point in me doing those mods? should i not have ditched the afm first.

any help appreciated as im still a dunce when it comes to fueling .

[Driftlimits Performance]

Go for a rev3 conversion

[redmr89]

thanks mate.. didnt really answer my question tho.

im busy putting a bodykit on, and saving for other things. (double glasing on the flat) etc. so altho your right a rev3 conversion or a standalone is the way forward i just cant afford it right now.

[Lewis Jay]

Fit dastak unichip and boost module cost £100+£150ish for mapping, these allow the car to run on higher than 13psi boost without the car overfueling uncontrollably and are cheapish.

Here comes the onslaught of, "Dont fit a Dastek, standalone is the only way!"

[redmr89]

sounds like a good idea. may have to save for one of these.

[JAP BOY]

How much Fly did your motor dyno at FWHP also Torque at Fly

[redmr89]

my dyno sheet...



incase you cant read that..

engine power 218.1hp@110mph/6441 1/min
wheel power 188.4hp@110mph/6441 1/min
power loss 29.7@110mph/6441 1/min
torque 208lbs/ft@3681 1/min
pressure/temp 995mbar/15c (din)

that was before the i/c upgrade

main thing the guy said is that it was massivly overfueling. i could be wrong but im sure it was 15% co

strange thing is ive just passed an mot so it cant be soo bad on emitions .

altho everyone that drives behind me when i boot it says it stinks of petrol and has a cloud behnd it..

[JAP BOY]

What boost was that at mate as i've got similar mods except for the turbo also what power is it making at 1bar

[simmo490]

you should be able to run more that 13psi??

i dont think the ecu throws the injector cycle to 100% after 13psi??

i had basically the same mods as you with a fuel cut defender and was running 1.1-1.2 bar with no problems.

granted the injector cycle would have been pretty high but as long as i did not take he p1$$ with the boost (or get spike) everthing should be ok

simmo

[redmr89]

jap boy.. that was at 1bar or maybe even 1.1. the car seems quick but just didnt show it on the rollers. thats why im tryin to find out about the overfuelling thing.

simmo. i was runnin 1.1bar for about a year. but my r/r graph disapointed me a bit. which made me wonder if it was just too much boost for standard fueling. or if theres somethin else wrong.

i just cant work out how the car only made 189whp. it seems so low for those mods. at 1bar.

forgot to put it on the spec list but i do have a fcd.

[Al-sw20]

Gotta find out why it dips like hell at 4500rpm. The first dip then peak between 3000-4000rpm will just be TVIS.

[redmr89]

Gotta find out why it dips like hell at 4500rpm. The first dip then peak between 3000-4000rpm will just be TVIS

any suggestions welcome mate..

i thought the tvis opend at 4000-5000

the torque does drop off at 4000-5000 which i thought was just the tvis but also drops at 5500 am i right in thinkin that if you pull the plug on the tvis. the butteflys stay open? maybe this is worth a try..

[JAP BOY]

RedMr89 i do agree1!!
With your mods and your only getting that sort of hp with running 1bar of boost i think something might be a miss!!

[redmr89]

well id love to know whats going wrong.but since that run ive put on the uprated i/c and disconected the tvis. car feals faster. im gonna get it back to macdonald racings r/r and see what its making now.

im planning a rev 3 conversion as well. so when thats done back to the r/r. be interestng to see the diffrences in power output and delivery.

[jimGTS]

dont go doing a rev3 ecu conversion without an ems to map it....

[redmr89]

why would i need an ems to map a rev 3 conv? surely the rev 3 ecu should run it ok..

[jimGTS]

do a search dude, the cars dont run alright on a rev3 ecu....
there are multiple people, including myself whove done the conversion, have run into problems which can only be fixed on a rev3 EMS and mapped.

[redmr89]

ive done searches and read all of the problems. i just dont understand why they dont run right?

once the convesions done if i put rev 3 cams in . then surely the engine will be identical to a rev 3 engine.

or is there other diffrences between a rev 1 and rev 3?

so what are you saying is the answer.. dont do a rev3 conv. go staright for a standalone with bigger injectors etc?

[jimGTS]

ive done searches and read all of the problems. i just dont understand why they dont run right?

once the convesions done if i put rev 3 cams in . then surely the engine will be identical to a rev 3 engine.

or is there other diffrences between a rev 1 and rev 3?

so what are you saying is the answer.. dont do a rev3 conv. go staright for a standalone with bigger injectors etc?

the engine are quite different, pistons, VE, inlet cam, inlet manifold, TB, all effect VE...
i would bet that if these things were changed (minus the pistons, bit ott), it would run alot better. but that wouldnt make the cost involved werth while (you need a custom adapter plate to fit the manifold also)....cause youd still have a stock ecu at the end of the day. hense you do the conversion, run on the rev3 ecu see if the car can run, lol, then map on an ems.....only way to fix the issues it seems. (and saves the hassle of manifold/TB/cams)/
you realsie just putting a rev3 inlet cam in is gona cost £300+ with all the reshinning etc etc (unless you can do it yourself), you may as well spend this dosh on an ems and map. (youd need more dosh for ems and map, but you see my point).

[redmr89]

thanks for the info.

yes i could fit the cams myself. a pain but its easy enough.

i was thinkin rev3 conv was gonna be a cheap easy option. but now im thinkin whether i should save the money and put it towards an ems.

hmmm . where do i go from here.....