[Mk2] [Turbo] REBUILD COMPONENTS QUESTION.

[Bobby (aka Shaggar)]

Right, need some final questions answering as in the fianl stages of engine rebuld quotes and need to suss a few final issues.

1) wheres the best/cheapest place to get reputable pistons from. Need 86.5mm forged items. Have been offered Wisecos at £400, though I see GTSChris selling a JE set , same size, for £349. Does it get any better than this. With so many build happened recently/happening now seems a good time to ask.

2) headgaskets. The company currently talking to is putting forward a Cometic 1.2mm item. They have trouble sourcing thicker. Question is, do i 'want' thicker as this will obviously alter the capacity and introduce fuelling issues as the engine will have no standalone for a while. Will the engine run lean OR will the rev1 setup realise whats happened and fuel apprpriately? While on the subject, again, whats the best/cheapest source for a reputable h/gasket?

3) fianl one, honest! Whats the going rate for a refurbed LSD gbox? have a quote into the £500s to rebuild my rev1 box using later internals BUT i have no lsd. Best route to go?

a)go with this
b)buy a bu88ered lsd box and get that rebuilt
c) get an lsd fitted to this box
d) buya used lsd box from a trusted source
e) buy a refurbed box from a trusted source.

If any of you have ideas and sources for your suggestions this would be greatly appreciated.



Thanks in advance.



Bobby

[paulmann]

I got my Forged pistons from the states. The exchange rate is the best it has ever been. If they wrap it as a present it might bypass customs, but even with a customs charge it would be cheaper. There would be no chance of returning them tho!! I havn't had any issues though.

I have used cometic H/G a few times, if you are going to get a different size headgasket you are going to be changing the compressions ratios of the cylinders. Less compression equals less heat build up. BUT there are many factors to think about of which i have no idea. Changing compression shouldn't be done without knowledge.
As for reliability they are fine, much better than the standard paper one!

[Bobby (aka Shaggar)]

Anyone? Come on guys, where are all the opinionated engine builders when i need them?!

[nisnos]

ok my build - similar component wise to julian kv

wossner race pistons
eagle rods
acl bearings throuout
TTE head gasket
piper 272 bp300 cams and springs
ats cam gears
spyder shimless bucket conversion
800cc injectors ats rail
sard fpr and liquid gauge
walboro pump

box wise peter g usually has one ready to rock and rebuilds them fully, however if you simply want a single component rebuild then a refurb is an option.

clutch is choice too, i like the rps max i have - not too heavy and very driveable.

[cantfindausername]

Bobby, I have my old turbo LSD laying in the garage if you chose to go that route. Alternatively, get an aftermarket diff. You can spend as much or as little on a box as you want. I won't tell you how much my box has cost me... all I'll say is that it wants to hold together forever!

HG wise, I've tried to stick to the stock 9.0:1 CR as close as possible. I had the head CC'd and there seems to be quite a bit of difference from what various people find. A reputable US buolder swears the heads are 49cc... mine came in at 51cc. Guess it depends what the history is of the head in question with regards to skimming etc. Worth getting done though if you ask me. you want to pick a CR and go with the HG that gives as close to that figure as possible.

Pistons... I went for CP pistons from the states as I think alot of people do. You're not talking alot of difference in money if you get them here tbh.

[Grajey]

CP pistons- chosen because I was told they have less expansion than other pistons on the market. THis means less clatter when engine cold which, from my point of view, is preferable for a road car.

NB. IIRC I read somewhere that JE pistons CR is accurate with 1.4mm HG but don't hold me to that. A lower CR should allow more boost but engine will be slightly less responsive when off boost. You pay your money etc as they say.

Stock rods
Clevite bearings - big ends and mains
New stock oil pump
New water pump
REV3 metal HG - easy choice as I have REV3 motor.
Stock head
Stock cams
SARD FPR and gauge
SARD 800 injectors on stock rail
Walbro fuel pump
ATS TD06
SPEC stage3 clutch - lighter pedal than stock
Fidanza flywheel

HTH

[nisnos]

oh forgot

ATS TD06 too!
my wossner pistons are silent too.

[Bobby (aka Shaggar)]

So any ideas for the best UK prices guys?

[nisnos]

pm peter gidden at SBITS for the ATS/WOSSNER stuff etc

[TBDevelopments]

i've got nearly all these parts instock you wish and will price match all the price if i'm not already cheaper.

Give me a PM with what you need.

Tim
xxxx

[nisnos]

[paulmann]

Give me a PM if you are interested in a reputable garage with the only catch is that he is in west yorkshire.

[dj_davo]

my rebuild: from top to bottom.

piper 264 cams in/ex & valve springs (sbits)
ats adjustable cam gears (sbits)
shimless bucket conversion (sbits)
tte 1.2mm headgasket (sbits)
arp head bolts (gts chris)
blitz k3t turbo with external wastegate & divorced downpipe (imoc member & rebuild at universal turbos)
wossner 86mm pistons (sbits)
polished crank (arnett engineering)
acl main & big end bearings (arnett engineering)
new stock oil pump (mr t)
arp conrod bolts (fensport)
fidanza flywheel (gts chris)
rps streetmax clutch (srb power)

fuelling & ecu to be upgraded once run in, which is still another 600 miles away!
hth

p.s julian.....i'm coming for ya!

[juliankv73]

ok my build - similar component wise to julian kv

wossner race pistons
eagle rods
acl bearings throuout
TTE head gasket
piper 272 bp300 cams and springs
ats cam gears
spyder shimless bucket conversion
800cc injectors ats rail
sard fpr and liquid gauge
walboro pump

box wise peter g usually has one ready to rock and rebuilds them fully, however if you simply want a single component rebuild then a refurb is an option.

clutch is choice too, i like the rps max i have - not too heavy and very driveable.

A-haaaaa but I have a Tigger air freshener that ramps up the RRRRRRoooooaaaaarrarrrrrrrr factor somewhat

[juliankv73]

I had Wossner pistons fitted as recommended by Rogue and peterSbits....nisnos, the "2" Andys both have them too....

[Bobby (aka Shaggar)]

Bobby, I have my old turbo LSD laying in the garage if you chose to go that route. Alternatively, get an aftermarket diff. You can spend as much or as little on a box as you want. I won't tell you how much my box has cost me... all I'll say is that it wants to hold together forever!

HG wise, I've tried to stick to the stock 9.0:1 CR as close as possible. I had the head CC'd and there seems to be quite a bit of difference from what various people find. A reputable US buolder swears the heads are 49cc... mine came in at 51cc. Guess it depends what the history is of the head in question with regards to skimming etc. Worth getting done though if you ask me. you want to pick a CR and go with the HG that gives as close to that figure as possible.

Pistons... I went for CP pistons from the states as I think alot of people do. You're not talking alot of difference in money if you get them here tbh.

How easy is it to fitan lasd into a non lsd box. Just a case of them removing one diff for a limited slip diff?



Bobby

[dj_davo]

I had Wossner pistons fitted as recommended by Rogue and peterSbits....nisnos, the "2" Andys both have them too....

and me

[Bobby (aka Shaggar)]

Bobby, I have my old turbo LSD laying in the garage if you chose to go that route. Alternatively, get an aftermarket diff. You can spend as much or as little on a box as you want. I won't tell you how much my box has cost me... all I'll say is that it wants to hold together forever!

HG wise, I've tried to stick to the stock 9.0:1 CR as close as possible. I had the head CC'd and there seems to be quite a bit of difference from what various people find. A reputable US buolder swears the heads are 49cc... mine came in at 51cc. Guess it depends what the history is of the head in question with regards to skimming etc. Worth getting done though if you ask me. you want to pick a CR and go with the HG that gives as close to that figure as possible.

Pistons... I went for CP pistons from the states as I think alot of people do. You're not talking alot of difference in money if you get them here tbh.

How easy is it to fitan lasd into a non lsd box. Just a case of them removing one diff for a limited slip diff?



Bobby

guys?

[TBDevelopments]

i believe the lsd will fit into a none lsd gearbox without any troubles. I know the driveshaft splines are different so they will need to be swapped as well.

I think thats about it but not 100% on some of the finer details.

Tim
xxxx

[Century Motorsport]

IIRC the wossener pistons are teflon coated - that means tighter tolerances with less wear. Can only be a good thing!!!