stealthy55

[QUOTE=Fat Boy;8299162]About 370/380 ftlbs - 2 litre and RCM GT35 P20 hybrid turbo. The relatively low torque explains how my box has held together uuntil now ( although it's beginning to complain). based on those figures why did you have the p20 instead of the p18?

Fat Boy

I'm only talking about the torque levels there in response to Skullfudge's question - my car runs about 440-450bhp and 370/380ftlbs of torque - I haven't put it on a dyno so I don't have an exact quote, but the original engine owner did getting in the middle of the above, and Bob Rawle's Bum Dyno (patent applied for ) thought that it was around that level too

Clearly the P18 wouldn't be up to the job - the P20 shrouded port (which is the one I have) can deliver up to 480bhp at 2.1 bar, whereas the P18 is good for a max of 430 bhp. Matt and Olly chose the parts carefully to provide a balanced and appropriate set of kit - as ever.

stealthy55

thanks for the reply

SkullFudge

Agree with that FB. That would be a good idea.

Davey P

iTrader: (1)

Fat Boy, what sort of components have been fitted to your engine?

SkullFudge

Bad News !

I've been speaking with Mark at RCM and I am not going to achieve the 600bhp
when the twisted kit is fitted. 580 - 590 has been suggested.
To achieve the Projects 600 will mean either twin mapping with a separate 10 Ltr tank for race fuel or NO2.

With 590bhp being so close to the Projects goal I have come to the realistic conclusion that I have a great car with ample power and that 700 or more would be bordering insane, so after much thought and talks with my wife I am having the nitrous

Olly was saying that using regular kits with a 50Bhp jet giving a further 80bhp would create a weak point in the engine namely the head gasket.

Knowing the engine had a weak point would be like knowing your tadger is going to drop off, but you don't know when !.......... so I am having the same system as "The Bitch", which is a headgasketless Gas O Ring system.

Olly & Matt just need to find the best way of running it through the M800.

SkullFudge

Fatboy.. when the car is finished your more than welcome to a spin mate.

dazdavies

iTrader: (22)

Here was the result of the afore mentioned wrong gear selection.




My latest Engine isn't far off Skulls or Marty's sort of spec I've just managed to save on labour .

Mine's based on a closed deck 2.5 though.

Fat Boy

Fairly lengthy list - and as I was explaining above, all a bit old school now compared to the likes of Marty and Skullfudge who represent 3-4 years of learning since mine was built by RCM. Rough engine spec:


(all new parts)
RCM tubular EXHAUST MANIFOLD
HYBRID GARRET GT35 VF TURBO P20
TURBO FITTING KIT
740CC INJECTORS
FUEL PRES REGULATOR
REGULATOR FITTING KIT
INDUCTION HOSE 76MM
ALUMINIUM TRUMPET
K&N FILTER
UPRATED SPARK PLUG
DEFI 60MM DEFI BOOST GAUGE KIT
DEFI 60MM DEFI OIL PRESSURE
DEFI 60MM FUEL PRESSURE
DEFI 60MM EXHAUST GAUGE
DEFI 60MM OIL TEMP GAUGE
SPE392 GAUGE PILLAR POD
DEFI CONTROL CONTROL BOX II
MPE12 EXHAUST GASKET HKS
UPRATED FUEL PUMP
OPEN NECK DOWNPIPE 3"
BIG INDUCTION HOSE 4 TRUMPET
OMEGA RCM PISTON HIGH COMP 5CC
PISTON RING SET
MODIFIED OIL PUMP
UPRATED DUMP VALVE
RCMS WRC H SECTION CONROD
RCMS WRC BILLET CRANKSHAFT
MAIN BRG SET MODIFIED
GPA BIG END BRG SET
HEAD DOWEL
KNOCK LINK DISPLAY
KNOCK LINK SENSOR
MOTEC ECU
MOTEC LOGGING MEMORY
CAN ADAPTER
3 BAR MAP SENSOR
3 PORT BOOST SOLENOID
APS FRONT MOUNTED INTERCOOLER
LH CYLINDER HEAD
RH CYLINDER HEAD
INLET VALVE / EXHAUST VALVE
BLOCK PAIR
JUN HIGH LIFT CAM KIT
RCM 4.7 KG FLYWHEEL
AP RACING CLUTCH KIT
CLUTCH RELEASE BRG
RCM 3" EXHAUST SYSTEM
MAPPING SESSION
GAUGE DASH POD ASSY
DEFI BLOCK ADAPTER
WATER PUMP ASSY
IDLER PULLEY
TIMING BELT
OIL COOLER MODINE
ALLOY PULLEY KIT BLUE
ZERO SPORTS THERMOSTAT
VERNIER CAM PULLEY
RCM OIL CATCH TANK
RCM OIL CATCH TANK FTTG KIT

That's most of it - plus of course the carbon fibre RCM slam panel - worth at least 0.015bhp

Fat Boy

700!! Not sure I even want to sit in it now

Sounds amazing, will take you up on that ride offer as long as I've got some horse tranquillisers to hand

Daz -nice one, I've been following yours on the other thread - wish i had your mechanical aptitude.

P20SPD

iTrader: (1)

Re the 6 speed problems. I personally have not had an issue with the change from 4th to 5th all year. However, the box i have now had low mileage. More importantly though, the linkage looked brand new, and the oem bushes were pretty stiff compared to slack/sloppy ones i have seen/fitted/used in the past.

Maybe something like the Kartboy bushes might be a cheap upgrade for those with iffy 6 speeds.

John (FB) will let you know next time i am down that way.

dazdavies

iTrader: (22)

For the what they cost in comparrison to the potential cost of a bad gearchange these bushes would be worth trying. Thanks for that Steven, I'll try that when I get the next 6 speed.

trails

iTrader: (41)

Cheers John...I think I'm going to go PPG and continue to go easy and sell the P1 box on, its only done about 4k and only 1500 of that at this spec. Better to sell it on while its still on one piece

SkullFudge

Fatboy.. your spec may be different to to current equivalent but I bet you still give most a good run for their money.
Sounds a nice car. Any pics?
Be good for a few of us to meet around the Blackheath area one evening?

SkullFudge

Daz.. nice looking motor mate.
I guess your occupation is related to auto. I do not have the knowledge to build
engines, and if I did I would not have the time that is required.

dazdavies

iTrader: (22)

No Mate, I'm an IT Nerd for a living.

Prior to rebuilding my first scooby the biggest mechanical job I'd done was an inlet manifold gasket on a 2.8i capri I had when I was 19

STI_Baly

iTrader: (23)

If possible could i join you? I'm down in Gravesend so not to far from Blackheath.

Daz that made me giggle, i'm presuming your not far off 20 years of age now?

Fat Boy

Skullfudge

It gets about - to the distress of some big bikes and expensive italian/german cars

No recent pics as I'm in the process of refreshing it really so, being a sensible type, have done it all **** backwards - nutty engine first, then remembered about shot brakes, tired suspension, whiny gearbox and, last but not least ,tatty cosmetics - loads of P1 spoiler/ splitter stonechips, kerbed wheels, one cracked headlight, one cracked spotlight, two nicked prodrive wing badges (thank you sarf london *******). So all abit tired looking at the moment - new two piece discs en route to sort brake situation, pennies being put aside for 6 speed with dccd and exe-tc in the New Year , new lights, badges ready to be put on to be followed by respray etc.

Happy to meet up around Blackheath or somewhere in between all other locals like Sti baly Will send pms

trails

iTrader: (41)

I'm not a million miles away, if you don't mind I'd like to gatecrash too

Fat Boy

As long as you promise not to use all your turbinator

SkullFudge

Be good to meet up trials

SkullFudge

Fatboy... muck fee, that was a funny description of your car lol. Your be a happy bunny when you get that EXE "under ya butt". That is serious fun.
Your getting there though, that's the main thing.

My brakes have bedded in now and are mad. If ever I picked up some ol' boy wearing a wig, I would find it very necessary to hammer the brakes at least once

trails

iTrader: (41)

great thanks gents, let me know when and no turbinator...promise

dazdavies

iTrader: (22)

Mid thirties actually lol

Fat Boy

When I had a nicely bedded in set of alcon/prodrive discs some years ago I remember taking out an mX5 driver as a passenger on a track day at Bedford GT circuit.

I was running full sticky slicks and DS3000 pads in the calipers on a nice hot day and I can recall him saying things like " Whoa, these are a bit nippy through the bends, aren't they? ha ha..."and other nice comments as we belted down the main straight, before he went quiet and then starting involuntarily stamping on an imaginary brake pedal a good 50m before I was even going to begin thinking about braking. When I finally stood on the brake, his specs flew off his face, out of his openface helmet and battered into the dashboard . At lunch I could hear saying things to his mates along the lines of "he's completely mad", "quick car" and "grips really well, but eff me when it brakes!!! Omigod, I nearly brought my liver up" We aim to please...

I like the calipers and am keeping them, it's just been the one piece rubbish discs that have been a pain - two piece AP Discs should sort that.

SkullFudge

LOL I know what you mean Fatboy. I have heard funny comments. My car is like it is purely for my own pleasure but when others are in it their comments and actions can be really funny and sometimes weird.
One occasion back fired on me. A diamond rep wanted a spin and when I launched it my sat nav left the dash holder and hit me square on the chin.
This is weird and has happened on 3 different ocassions now,(2 women and a 9 yr old boy).
When I floored it they all stretched their arms out in front of them???
Surely that's a natural instinct when braking hard isn't it?? not when accelerating ?.

olliecampbell

iTrader: (3)

Maybe it's the G's you're pulling and they don't have the muscle to pull them back in

On that note, imagine the strain bra straps get put under! You lucky man!

SkullFudge

LOL bra straps...mmmm if I ever hear a large "twang" I guess I will have no option but to quickly look to my immediate left

olliecampbell

iTrader: (3)

Midst that rapid gear changing it might be difficult to help 'restrain' the lady in question.

Anyway, enough of this...get on with your build

eureka

iTrader: (1)

im in scull if thats ok , my mere 400+ starting to sound slow now
compared to a couple of you lot thinking of stripping the car now to rid some weight