super awesome turbo now in bits again

Pol Anorl · Banned Joined: 13 Apr 2010 Karma :

CHR15 is a myth it is now proven.
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TQ · Trackday Trickster Joined: 17 Dec 2009 Karma :

I assume when you're finished you're going to do at least one power run on a dyno?

Are we going to have a sweepstake on BHP?
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P. · Red Rocket Joined: 14 Feb 2008 Karma :

225hp.

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

virus · World Chat Champion Joined: 17 Aug 2006 Karma :

Chris, throw up a parts list/engine spec so we can have a decent guess at HP?

Cheers
John
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own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

CHR15 · Turbo nutter bastard Joined: 14 Jun 2008 Karma :

1216cc
8.8:1
forged pistons
forged rods
knife edged polished crank
1052 steel clutch with 2 stage lock up
stock gearbox
mistral engineering ported head on stock valves
108/108 timing
gsxr1000k2 tb's
siemens deka iv 630cc injectors
microsquirt v3 running v2xtra firmware
dyna 2.2 ohm coils with bosch 2 channel driver
gt2860 (not the rs version... yet!)
some sort of intercooler perhaps atw just as an interesting project
will probably start out around 15psi to be safe.

some of those things aren't relevant to power output.

before i really thrash it, it could do with new shells though.
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_Iain_ · Banned Joined: 01 Feb 2012 Karma :

TwoWheelsDail... · Scooby Slapper Joined: 23 Oct 2012 Karma :

im think its going to be very near 300. lets say 291rwhp
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P. · Red Rocket Joined: 14 Feb 2008 Karma :

virus · World Chat Champion Joined: 17 Aug 2006 Karma :

sounds like the makings of 300hp there, nice spec BTW, how much did the porting cost? Im thinking of getting another bandit head to skim, port and cam until I can afford something a bit more boosted.

Cheers
John
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own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

hmmmnz · Super Spammer Joined: 22 Aug 2006 Karma :

hmmm my mate has a similar spec bike less the worked head, at 15psi he is getting 240hp
so thats my guess as well
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CHR15 · Turbo nutter bastard Joined: 14 Jun 2008 Karma :

stevo as b4 · World Chat Champion Joined: 17 Jul 2003 Karma :

Sounds like a bargain, as you can't really get much worthwhile head work on anything for £250.

Chris are you planning on running a boost controller and one possibly linked into the ECU for progressive boost and or gear dependant boost?

I assume that this is more important on a straight line competition bike than it is on a road machine, where a simple XXpsi spring could be used in the wastegate for keeping it light and simple.

CHR15 · Turbo nutter bastard Joined: 14 Jun 2008 Karma :

dunno about boost control yet. i have the abaility to run it, dont know if i will.

tried to fire it up tonight. made some very impressive bangs and blew the tb's off the engine a few times. also managed to backfire so hard it undid the bolt that holds the sprag clutch onto the crank lol.

i got pissed off with it so its been put to bed for today.

i was sat having a beverage and it occurred to me that i might have set the wrong tooth#1 offset.

tooth#1 is 80 clockwise degrees before tooth#tdc1 so i entered 80 into the offset. i think i should have entered 280 instead because your always supposed to measure from tooth#1 to tdc1 in the running direction of the engine which is clockwise.

which would explain the lulzy explosions / backfires because the plugs would be firing just after bdc exhaust on 1 and bdc compression on 4.

on the plus side theres no fuel leaks and it doesn't leak too much oil (for a bandit engine)

will play again tomorrow.
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Turbocharged drag thing / project death weapon / GK73A
Ste: I'm not entirely sure how you'd go about verbally abusing someone with a potato but I'm sure it's possible.

CHR15 · Turbo nutter bastard Joined: 14 Jun 2008 Karma :

i tried again today with the 280 degree setting and it just blew the tb's and undid the starter clutch again.

ive got a windowed ignition cover somewhere and a timing light so thats tomorrows job.

the only other thing is that the revs seem to jump around like mad when cranking and the 'sync' light flashes from red to green.

ive done like 2000 miles with that rotor / hall sensor so i dont understand why its playing up.

is it possible to wire a hall sensor in backwards?
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Turbocharged drag thing / project death weapon / GK73A
Ste: I'm not entirely sure how you'd go about verbally abusing someone with a potato but I'm sure it's possible.

spikenipple · Crazy Courier Joined: 20 Nov 2007 Karma :

I shouldn't have thought that they are polarised as it's simply picking up an electromagnetic pulse.
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chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

I showed my girlfriend that video of the backfires on FB, I explained that you had built the majority of the bike yourself and had made many parts completely from scratch. Her response, "If he went to all that trouble why won't it start?" Laughing

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CHR15 · Turbo nutter bastard Joined: 14 Jun 2008 Karma :

you can tell her its because i may have wired the vr sensor into the opto1 input channel and the signal is bypassing the vr conditioning circuit which is why its losing sync whilst cranking.

or it could be because she didn't make any goddamn sammiches yet.
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Turbocharged drag thing / project death weapon / GK73A
Ste: I'm not entirely sure how you'd go about verbally abusing someone with a potato but I'm sure it's possible.

Doovy · World Chat Champion Joined: 21 Jul 2008 Karma :

I've just seen a video of it running Shocked

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CHR15 · Turbo nutter bastard Joined: 14 Jun 2008 Karma :

.
.
.
<< my face.

https://youtu.be/6DWMGIDdzwA

long way to go, but its a start.
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Turbocharged drag thing / project death weapon / GK73A
Ste: I'm not entirely sure how you'd go about verbally abusing someone with a potato but I'm sure it's possible.

P. · Red Rocket Joined: 14 Feb 2008 Karma :

Huge amounts of win. Thumbs Up

Nobby the Bastard · Harley Gaydar Joined: 16 Aug 2013 Karma :

I think I just creamed...
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CHR15 · Turbo nutter bastard Joined: 14 Jun 2008 Karma :

https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-prn1/t1/q80/s720x720/60884_10151876549638365_931326236_n.jpg

https://scontent-a-lhr.xx.fbcdn.net/hphotos-frc3/t1/q81/s720x720/1526737_10151876549643365_1260635532_n.jpg

need some liners and some big pistons.
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Turbocharged drag thing / project death weapon / GK73A
Ste: I'm not entirely sure how you'd go about verbally abusing someone with a potato but I'm sure it's possible.

Howling Terror · Super Spammer Joined: 05 Dec 2008 Karma :

Great job so far Chris.
Always enjoy reading this thread. Thumbs Up

Can't believe you're actually going to pilot it.
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P. · Red Rocket Joined: 14 Feb 2008 Karma :

Did you get that all on video? The milling part Mr. Green