busa fighter build
- Thread starter spart666
- Start date
You have skills my friend!
spart666
Registered
some help guys
loads of niggly probs all now sorted
was up at bills for a couple of days utilising his dyno
got the leads for the ecu, software, holeshots mapping ect
try to keep this short
mapping is pretty spot on tick over is now spot on not hunting for fuel
running rich at approx 8k revs
the problem is not boosting
using an eboost 2 which is set to 8psi but when on the dyno only getting about 3.5 psi
wastgate is working blow off valve working no cracks in plen chamber headers not cracked all plumbing checked and correct turbos running
mappings correct
any ideas ?
have been told what it possibly could be but before i post it wanna see what you guys think
heres the spec
fully stripped and rebuilt new mains and big ends
cylinder head had the valve seats re-cut and lapped and some minor porting
bearings and seals heavy duty headstuds
heavy duty clutch springs
forged je pistons, barrel spacer
modded clutch basket billet clutch slave support bracket
garrett gt25 turbo charger
tial 38mm wastegate
small dump pipe k&n cone filter
alloy plenham chamber
fuel m,ment MBE 9A4 ECU
MODIFIED HARNESS TO SUIT ECU
3 BAR MAP SENSOR
h/d FUEL PUMP
HEAVY DUTY FUEL INJECTORS
TOP HATS AND CLIPS
EBOOST 2 BOOST CONTROLLER
NEW REGULATOR/RECTIFIER
ohhhhh yea and a vid of bill giving it some
loads of niggly probs all now sorted
was up at bills for a couple of days utilising his dyno
got the leads for the ecu, software, holeshots mapping ect
try to keep this short
mapping is pretty spot on tick over is now spot on not hunting for fuel
running rich at approx 8k revs
the problem is not boosting
using an eboost 2 which is set to 8psi but when on the dyno only getting about 3.5 psi
wastgate is working blow off valve working no cracks in plen chamber headers not cracked all plumbing checked and correct turbos running
mappings correct
any ideas ?
have been told what it possibly could be but before i post it wanna see what you guys think
heres the spec
fully stripped and rebuilt new mains and big ends
cylinder head had the valve seats re-cut and lapped and some minor porting
bearings and seals heavy duty headstuds
heavy duty clutch springs
forged je pistons, barrel spacer
modded clutch basket billet clutch slave support bracket
garrett gt25 turbo charger
tial 38mm wastegate
small dump pipe k&n cone filter
alloy plenham chamber
fuel m,ment MBE 9A4 ECU
MODIFIED HARNESS TO SUIT ECU
3 BAR MAP SENSOR
h/d FUEL PUMP
HEAVY DUTY FUEL INJECTORS
TOP HATS AND CLIPS
EBOOST 2 BOOST CONTROLLER
NEW REGULATOR/RECTIFIER
ohhhhh yea and a vid of bill giving it some
spart666
Registered
Hi guys
aint posted for a while because all weve managed to do is find problems but we are getting there
last post we had the bike boosting pushing 242bhp @ 8 psi bill (Mustapha dump to you lot)
couldent get the bike to boost higher than 8 psi so reckoned since the wiring loom has been hacked about so many times could be creating an issue with the eboost
his answer redo it he got rid of the over complicated eboost i got hold of some new guages
and sorted them to fit bill rewired them and cut another hole in my tank
result was 288bhp 160lb/ft at 12 psi.
bill says "This was the first test of the new boost control system.
The new spec is
1st stage 8psi on the wastegate spring alone 240bhp, push the button and 2nd stage is engaged which sends boost pressure to the top of the diaphram, when the boost pressure reaches the desired level the adjustable boost pressure switch in the plenum
switches the 3 way air solenoid and the wastegate opens, the new system allows boost pressure from 8 to 18 psi, simply by winding in the adjuster on the pressure switch in the pleneum. The system is designed that in the event of power failure or component failure the boost will default to the low setting
A latching push button is mounted between the new digital boost gauge and matching digital temp gauge supplied by Visual Performance, when the 2nd stage is active a red warining LED in between the gauges illuminates, this LED goes out when the wastegate opens.
seperate subloom was built for the new boost control to avoid having to do anything to the existing wiring system. The valve clearances on several of the intake valves were far too tight and the intakes were holding open slightly when the motor got hot.
The graph attatched was the first test of the new system and managed 288bhp and 160lb/ft of torque at 12psi.
on high boost, bill was going to turn the boost up and get it to 300bhp but the ****ing wiring gremlins have raised there ****ing heads again bill managed a couple of runs but the ignition keeps breaking down one minute its fine next not
result you touch the wiring loom you dont know if the bike will start or not or how its going to behave and to give bill his due his worry is it fails me whilst im overtaking or mid corner ect ect
the other major point is we want realiability so got to bite the bullet
pretty sure bill will add his two pence worth at some stage
so blasted off an email to jack at holeshot with the issues and the result
a full wiring harness for mbe ecu
Injector Sub loom
Map sensor input loom
and bill is going to build a seperate loom for the lights ect
hes already built a subloom for the boost control part of system
so when we get this sorted bill can finally map it in and fine tune it
aint posted for a while because all weve managed to do is find problems but we are getting there
last post we had the bike boosting pushing 242bhp @ 8 psi bill (Mustapha dump to you lot)
couldent get the bike to boost higher than 8 psi so reckoned since the wiring loom has been hacked about so many times could be creating an issue with the eboost
his answer redo it he got rid of the over complicated eboost i got hold of some new guages
and sorted them to fit bill rewired them and cut another hole in my tank
result was 288bhp 160lb/ft at 12 psi.
bill says "This was the first test of the new boost control system.
The new spec is
1st stage 8psi on the wastegate spring alone 240bhp, push the button and 2nd stage is engaged which sends boost pressure to the top of the diaphram, when the boost pressure reaches the desired level the adjustable boost pressure switch in the plenum
switches the 3 way air solenoid and the wastegate opens, the new system allows boost pressure from 8 to 18 psi, simply by winding in the adjuster on the pressure switch in the pleneum. The system is designed that in the event of power failure or component failure the boost will default to the low setting
A latching push button is mounted between the new digital boost gauge and matching digital temp gauge supplied by Visual Performance, when the 2nd stage is active a red warining LED in between the gauges illuminates, this LED goes out when the wastegate opens.
seperate subloom was built for the new boost control to avoid having to do anything to the existing wiring system. The valve clearances on several of the intake valves were far too tight and the intakes were holding open slightly when the motor got hot.
The graph attatched was the first test of the new system and managed 288bhp and 160lb/ft of torque at 12psi.
on high boost, bill was going to turn the boost up and get it to 300bhp but the ****ing wiring gremlins have raised there ****ing heads again bill managed a couple of runs but the ignition keeps breaking down one minute its fine next not
result you touch the wiring loom you dont know if the bike will start or not or how its going to behave and to give bill his due his worry is it fails me whilst im overtaking or mid corner ect ect
the other major point is we want realiability so got to bite the bullet
pretty sure bill will add his two pence worth at some stage
so blasted off an email to jack at holeshot with the issues and the result
a full wiring harness for mbe ecu
Injector Sub loom
Map sensor input loom
and bill is going to build a seperate loom for the lights ect
hes already built a subloom for the boost control part of system
so when we get this sorted bill can finally map it in and fine tune it
Stainless Steve
Registered
I had all sorts of problems with my car loom, but the dedicated MBE loom sorted it all out. I run a 9A4 like you.
Good luck with it mate.
Good luck with it mate.
spart666
Registered
Hi all
quick update bikes was on the backburner for a while no funds new job and major doggy surgery was going to sell it off but got talked out of it bill called me a few choice names and spouting stuff like you know how much time ive spent on that you kent or something like that
and busa dave just said we will sort it no dramas
this was my turbo rebuild £1000 worth of stiching ouch!!!!
bill finishing up the mapping when i sort the oil return on the turbo and fit a one way check valve as its to low
now sorted just waiting for the check valve then i can whip off the turbo and get the oil seals done
when we got the bike home the bike would.nt fire up changed the battery still no joy
bikes was running rich so checked fuel pressure electrics bill done a sterling job changed the fuel lines as they needed re-routing all good
pulled the air filter off that wasent helping ****ed so needs replacing
rigged up the laptop and error was bad tooth pattern talked to sbd who were brilliant sent them the map and he emailed me back with a tweeked map all in 10 mins loaded it back on
bike starts first time every time
doing some detail stuff on it over the next couple of months keep you posted
quick update bikes was on the backburner for a while no funds new job and major doggy surgery was going to sell it off but got talked out of it bill called me a few choice names and spouting stuff like you know how much time ive spent on that you kent or something like that
and busa dave just said we will sort it no dramas
this was my turbo rebuild £1000 worth of stiching ouch!!!!
bill finishing up the mapping when i sort the oil return on the turbo and fit a one way check valve as its to low
now sorted just waiting for the check valve then i can whip off the turbo and get the oil seals done
when we got the bike home the bike would.nt fire up changed the battery still no joy
bikes was running rich so checked fuel pressure electrics bill done a sterling job changed the fuel lines as they needed re-routing all good
pulled the air filter off that wasent helping ****ed so needs replacing
rigged up the laptop and error was bad tooth pattern talked to sbd who were brilliant sent them the map and he emailed me back with a tweeked map all in 10 mins loaded it back on
bike starts first time every time
doing some detail stuff on it over the next couple of months keep you posted
spart666
Registered
hi all
some updates bikes back on turbos gone off to be rebuilt
wiring all sorted headlight brackets being made up out of billett
turbo guages redone and new surround made of to be mapped and sorted by feb
dave sorting out a headlight cover in the next two weeks
now the bad news
so how to put this
This isn't about sadness its about a celebration
those of you who know spart the boxer
was a big 9 stone white boxer 12 years old with a massive heart
always in trouble and my best friend he grew up
with my daughter and was the centre of our lives
In August he had a big op and he pulled through however as fate would have it
the tumor grew back
i wanted more than anything spart to have this xmas with us
so the stubborn bastard started perking up gave me my wish
at 4 pm on xmas day he went for his normal walk and had a heart attack and
died in the field where we have walked him for 12 years
so I got my wish the best xmas present that I could have got
With that i want all that knew him to offer up a big bigup for
spart and may he cause havoc in the afterlife
rest in peace mate xxxxx
some updates bikes back on turbos gone off to be rebuilt
wiring all sorted headlight brackets being made up out of billett
turbo guages redone and new surround made of to be mapped and sorted by feb
dave sorting out a headlight cover in the next two weeks
now the bad news
so how to put this
This isn't about sadness its about a celebration
those of you who know spart the boxer
was a big 9 stone white boxer 12 years old with a massive heart
always in trouble and my best friend he grew up
with my daughter and was the centre of our lives
In August he had a big op and he pulled through however as fate would have it
the tumor grew back
i wanted more than anything spart to have this xmas with us
so the stubborn bastard started perking up gave me my wish
at 4 pm on xmas day he went for his normal walk and had a heart attack and
died in the field where we have walked him for 12 years
so I got my wish the best xmas present that I could have got
With that i want all that knew him to offer up a big bigup for
spart and may he cause havoc in the afterlife
rest in peace mate xxxxx
spart666
Registered
thought it was time to update
first up say hello to henry the thug a white boxer black eye and a mohawk will never replace spart but we had this gap which just had to be filled
turbo got sorted new seals which were shot and all cleaned up and balanced
whilst i was at it repainted the engine block and sorted out that crap radiator
redone the clocks with a decent piece of carbon fiber
got some more space in the engine bay and changed the standard engine breather with a low profile unit loads of room now
so with that lot done bike was sent off to tim who mapped the bike problem we had was that the bike was running really rich and on power felt like we had a fueling problem all was checked that we could check busa dave went through it with a fine toothcombe all was good so when tim got it within 5 mins on the dyno sussed the prob tps was wired wrong that sorted bike was mapped and running lovely 230bhp low boost
still got to map high boost but we need to rewire that part as tim wasent happy with the set up so thats a job for him after summer
so all thats left for me to do noz bottle powdercoated being done this week new air filter ordered brackets for lights being done this week new lock up clutch on order due next two weeks
first up say hello to henry the thug a white boxer black eye and a mohawk will never replace spart but we had this gap which just had to be filled
turbo got sorted new seals which were shot and all cleaned up and balanced
whilst i was at it repainted the engine block and sorted out that crap radiator
redone the clocks with a decent piece of carbon fiber
got some more space in the engine bay and changed the standard engine breather with a low profile unit loads of room now
so with that lot done bike was sent off to tim who mapped the bike problem we had was that the bike was running really rich and on power felt like we had a fueling problem all was checked that we could check busa dave went through it with a fine toothcombe all was good so when tim got it within 5 mins on the dyno sussed the prob tps was wired wrong that sorted bike was mapped and running lovely 230bhp low boost
still got to map high boost but we need to rewire that part as tim wasent happy with the set up so thats a job for him after summer
so all thats left for me to do noz bottle powdercoated being done this week new air filter ordered brackets for lights being done this week new lock up clutch on order due next two weeks
Last edited by a moderator:
spart666
Registered
took out the bike over the weekend found that on tickover it was hunting and what sounded like an air leak
so gave mr bruno a shout had a good look around and found no leaks from the turbo system but what was concerning was throttle body no4 was lifting
first thoughts bad spark ruled that out then coil breakdown again ruled out as we went through every thing i spoted a spark from the inside of the engine bay dave then investigated and spoted the vapour coming out of the bottom of the throttle body checked the rubbers all fine so somehow i had a hole in the throttle body
cut a long story short we went looking for a second hand set just so happened dave had a spare set of busa throttle bodys in his garage as you do
the scary bit was what we found
1.the hole for the injectors were not drilled out correctly every single hole had damage which someone had sealed with sealent on one side
and on the other the had used chemical metal to seal and then repainted them
2. throttle body four was resembling a combustion chamber
3.even the boots mounting to the engine were silocined it looks like someone tried everything to stop any leaks couldent have been much worse just lucky we caught it in time
result
a nice new pair we replaced the boots all the lines the injector holes were already properly drilled out bike started first time all balanced no air leaks not hunting off the road for 24hours many thanks dave
so gave mr bruno a shout had a good look around and found no leaks from the turbo system but what was concerning was throttle body no4 was lifting
first thoughts bad spark ruled that out then coil breakdown again ruled out as we went through every thing i spoted a spark from the inside of the engine bay dave then investigated and spoted the vapour coming out of the bottom of the throttle body checked the rubbers all fine so somehow i had a hole in the throttle body
cut a long story short we went looking for a second hand set just so happened dave had a spare set of busa throttle bodys in his garage as you do
the scary bit was what we found
1.the hole for the injectors were not drilled out correctly every single hole had damage which someone had sealed with sealent on one side
and on the other the had used chemical metal to seal and then repainted them
2. throttle body four was resembling a combustion chamber
3.even the boots mounting to the engine were silocined it looks like someone tried everything to stop any leaks couldent have been much worse just lucky we caught it in time
result
a nice new pair we replaced the boots all the lines the injector holes were already properly drilled out bike started first time all balanced no air leaks not hunting off the road for 24hours many thanks dave
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