PRO250

I have been down this road and been 250 rod and 200 rod combos with my engine there was no real gain that we could see on the dyno or in the car for that matter with 262@50 cam and 4 barrel I never tyred it with webers

I just sold 2 200 rod engines people think its better and in something like rob has it is, on a engine that does not turn past 6200 theres no need the 250 rod will put up with it and love you long time

can you but the rings for the 200 rod pistons again? I have a set of new 200 rod pistons  in the shed ive never done anything with cause you cant seem to get the ring sets for them anymore so I bought these to nick the ring set for the my engine that I killed a piston ring

 

find a C4 ive been here there rubbish box a 150rwhp with smash one in a short amount of time just go a C4

Good brakes only slow you down mate

Good brakes only slow you down mate

If building one for performance you will swap and change parts anyway so there is no real gain on a lower reving engine as far as blocks go. But if you want to turn it past 6500 the XF block is better as far was you can just drop a EF crank into it under 6000 I would not bother unless it was for a race car or something that sees revs for a while at a time

Heads again you just chop and change to suit what you want and the comp ratio you are looking for. The old XDs have a open chamber one the later ones have a smaler chamber one, some will say some are better then others but other then chambers to suit the comp ratio your looking for there all about the same give or take in a few places

Your budget is decent id consider boost at that budget, mine cost less then that and made some nice numbers and real good TQ at no revs you could do 250 300rwhp with that budget if you can spin the spaners yourself mine runs LPG and I did mine for about 3k but the turbo hotside was 2nd hand but that was cooler piping cooler so on and a LPG system that would support a turbo setup. But as has been said a barra turbo even a stock one will stomp most NA 250s back to the stoneage and is a off the shelf engine you can buy anywhere and it would drive like a new power plant and be good on fuel all the pros of a newer engine but a old school car  

post the engine number we can tell you what the engine is out of

When running them as a pickup purple and orange wires on your MSD. or a module using the white wire? if your running a module I think your using the white wire

If hooked up as a pickup it does not matter witch way the wires are, it will not hurt the pickup it will either run off song or not at all if it does this do the wires the other way

If its just hooked up as the white wire its still red to red an green is where the black will go

Your not running a electronic dissy in a points block? as they have different shaft size it will work but it flogs the bush in the dissy and causes the issue your having where the trigger wheel touches the pickup causing a miss or backfire, it will aso break the trigger wheel in extreme cases. I only ask as its a pre XD car in your stig it may have a points block and will do the same thing again 

When running them as a pickup purple and orange wires on your MSD. or a module using the white wire? if your running a module I think your using the white wire

If hooked up as a pickup it does not matter witch way the wires are, it will not hurt the pickup it will either run off song or not at all if it does this do the wires the other way

If its just hooked up as the white wire its still red to red an green is where the black will go

Your not running a electronic dissy in a points block? as they have different shaft size it will work but it flogs the bush in the dissy and causes the issue your having where the trigger wheel touches the pickup causing a miss or backfire, it will aso break the trigger wheel in extreme cases. I only ask as its a pre XD car in your stig it may have a points block and will do the same thing again 

There's guys doing basic Barra looms for a few hundred bucks now, use original ecu, get all the security stuff turned off. Bolt in a ba pedal and you're laughing.
 
Between Barra and Ls conversions car guys have never had it so good.

For 5k I'd just put a Barra in there.

to much reading in here my head hurts

all I can read is blar injector electronic blar blar cant find anything refering to a turbo so im out

good looking TBs but jonstons did this in the late 90s 11.7 and driven to the track not bad for a 250 back then

Is your dizzy a genuine Bosch or one of those Chinese repros? My engine came with the latter and besides having a dud vac cannister, the advance was way too aggressive. Too.much timing and too early. I'd get it running nice at cruise and light throttle, cranked over fine, but under load above 2500 it would knock its head off. So I'd knock it back to where it was happy under load, and it was too doughy down low.
 
Then Mr MSD 6AL-programmable came along, with an MSD billet dizzy, solved all the dramas. I then proceeded to throw that stupid Bosch copy into next week. What a piece of shit!

M-motors were considered shit because from start to finish they were only ever made in the smog era (ie open chamber, low comp, retarded cam, two barrel only, smog pump heads, etc) but if you want to compare apples with apples, throw some go-fast clevo bits at one and lol at the stupid midrange torque and still decent top-end.
 
They're spinning them to over 6500 in the States, now they're really waking up to what before was considered a boat anchor motor. They're stroking them too, even though it's already the longest stroke that Ford ever made in a V8.
 
Don't forget, 460s were mostly shit smog engines too. And they were heavy... 80 kg more than a clevo and 60 more than an M. That's like carrying an extra passenger, but on your bonnet.
 
But you can get some decent cubes out of them. 557 seems to be the most they go out to. That's 9.1 litres!

111psi is fubar, most crossys no longer run on all banks that low and would also be the miss it has

I would not be chasing issues till you fix that the engine is never going to run any good as its about dead 

and im very surprised that engine does everything you say it does cause that's dead as far s a crossy goes mine had more comp then that with 2 broken comp rings and a side off a piston and it still run on 6cylinders like that was just a chugger out the breather pipe as it would just blow the comp past the rings into the sump

a happy good stock crossy has around 180PSI across the board a few PSI drop is fine as theres a fair bit to a engine, but that things 28psi down from 1 to 6 id almost say the engine had a broken comp ring on 1 being that low or a rather large valve issue

I have a 120.000km crossy in the shed no head $250 if you want it, fit a head (little dave will sell you a brand new one ill ask him if you want. and a $100 for a gasket set and some valve springs and dump it in the hole

or build a new one. a stock crossy cost very little to build last slapper I did cost $670 and about $400 in bits I already had as I have boxes of crossy bits

RIP little crossy
  

 

 

you can look for the issue but I think you have found it, upto you how you go about it. like I said most crossy don't run on all cylinders when there that low



 

HAHAHAHAHAHAHAHAHHAHA bottom line  

How long since it rained on the roads in your area?
This was the first rain in a while up here, there will always be a build up of oil on the road after a dry period making it very slippery.

Not even women

No one knows that
 
 
Cortina for life

I don't fucking know women

id get a wizzor C4 but you can still bolt the crossy bell to the clevo c4 input shaft older c4s where 24/24 in there input shaft and later ones 24/26 either run a 24 spline convertor or swap the input shaft and run a 26 spline convertor 

drag only 4litre and a 250 shot of NOS would be cheap racing and go easy mid 12s with a little track time and the engines cost $250

just a windmill and valve springs could see 300hp just boost the fooker

and get a c4 my bw40 lasted 4 seconds when I boosted mine

XD/XE alloy head is around 55-57cc from memory

I don't have Anything constructive to add but that's a very oil free looking crossie. Can't have any in it.