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 380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
6th Oct, 2008 at 07:53:19pm
as title, im going to start my slow winter turbo engine build soon as my mini is nearly finished, and after talking to matty yesterday i think im a bit closer to what i'll need to get a turbo engine im happy with, which is a "basic" engine with between, 100-150bhp and realiable..ish.
Edited by dan_up on 7th Oct, 2008. On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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 6748 Posts Member #: 828 Post Whore uranus |
6th Oct, 2008 at 09:46:00pm
dan , you dont need the turbo vlave guides ,just use stock or bronze ones .
Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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 1346 Posts Member #: 2340 Post Whore Dublin Ireland |
6th Oct, 2008 at 09:49:30pm
IMO lose the SC drops put a 100 quid to there price and buy a Clubmas Mini Spares S/C gear set On 17th Feb, 2009 Rob H said:
I find the easiest way is to super glue the bolt to the end of one of my fingers. ______________________________________________________ |
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
6th Oct, 2008 at 10:36:20pm
On 6th Oct, 2008 robert said: cheers robert, yeah i want to use the t2 and mirage for 2 reasons, 1, being the bulkhead and 2. i understand t2's are better in the low revs and less lag? im not fussed about top end speed yet as its a first build, just need a decent start point. thanks for the info though mate.
dan , you dont need the turbo vlave guides ,just use stock or bronze ones . from what iv read steer well away from morespeed it seems project suicide to go there when you can get it all from other companies ,but thats just from what ive read , i dont have any personal exp.. apart from that looks fine should get you what you want ,you could use a t3 and use a metty manifold and save a wad of cash ,but im guessing you want ot avoid cutting the bulkhead ? On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
6th Oct, 2008 at 10:36:57pm
On 6th Oct, 2008 PaulH said: cheers mate, i'll have a look now.
IMO lose the SC drops put a 100 quid to there price and buy a Clubmas Mini Spares S/C gear set On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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 3249 Posts Member #: 1194 Post Whore Shropshire. |
6th Oct, 2008 at 10:50:26pm
I would use SC drops... dont think the standard ones will last too long at your aimed power. |
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
6th Oct, 2008 at 11:05:09pm
On 6th Oct, 2008 MarkGTT said: thanks mate, i think i'll go for the drops as its one weak point of the gearbox eliminated.
I would use SC drops... dont think the standard ones will last too long at your aimed power. list revised 
On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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 4629 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
6th Oct, 2008 at 11:56:44pm
I'd be adding a steel flywheel, backplate, grey diaphragm & AP rally/race plate to your list. The Verto certainly wont be up to the job. :) |
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 3692 Posts Member #: 1833 Formally mini_majic Auckland, New Zealand |
7th Oct, 2008 at 12:03:16am
without a little fiddling ala Robert anyway! |
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
7th Oct, 2008 at 12:23:56am
On 6th Oct, 2008 Turbo Phil said: ace, cheers for that phil, forgot all those parts!! lol.
I'd be adding a steel flywheel, backplate, grey diaphragm & AP rally/race plate to your list. The Verto certainly wont be up to the job. :) On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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 1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
7th Oct, 2008 at 12:30:38am
I assume you will be using a HIF44?
On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse  On 30th Apr, 2010 Rod S said:
Gary's description is best |
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
7th Oct, 2008 at 12:43:12am
On 7th Oct, 2008 spanner181187 said: i will indeed be using a HIF44, not sure on an intercooler, if it will be needed? and fuel pump wise, ive been told the gravity fed Bosch pumps are the ones to go for.
I assume you will be using a HIF44? Will you be runing an intercooler? What will you be doing fuel pump wise? cheers dan On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
7th Oct, 2008 at 12:48:02am
I would run an intercooler just for peace of mind if you want a reliable motor. It would help prolong head gasket life.
On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse On 30th Apr, 2010 Rod S said:
Gary's description is best |
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
7th Oct, 2008 at 01:09:58am
On 7th Oct, 2008 spanner181187 said: cheers for the advise mate, better look for a small intercooler then!! I would run an intercooler just for peace of mind if you want a reliable motor. It would help prolong head gasket life. Bosch 0 580 464 070 is the metro turbo pump which most people use. I'll be doing the same 
On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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 9812 Posts Member #: 332 Resident Cylinder Head Modifier Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem |
7th Oct, 2008 at 01:34:47am
a good intercooler pays mega divys, Edited by BENROSS on 7th Oct, 2008.
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
7th Oct, 2008 at 05:48:24pm
thanks steve, this is great advise, i'll do a search for turbodaves write up and i'll amend my list, at least now i can add up a average price to how much it'll cost me, then i can whore myself out to pay for it all!! lol.
On 7th Oct, 2008 BENROSS said:
a good intercooler pays mega divys, 
add that to your list and all the advice above is good dont forget to machine 1.5mm of the clutch backplate off the 3 lugs as per ... turbodaves write up! use the timking idler with the drop gears minispares north ask for richard they will be in stock in 3 weeks ...................... also uprate the rockers to 1.3 ratios .....and the power figures you are after go for the kent 266 cam .. in my book next best thing the normaly aspirated MG cam is a top cam, well regarded on here BUT..... my monies on the kent 266.... it will feel alot MORE drivable and pull its nut off for Road use and track days. to TOP it off dont froget a well modded head this will place your power spread and torqure throughout some what 30% ++ more! On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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 8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
7th Oct, 2008 at 10:08:04pm
Bunch of amateurs...everyone has forgotten to mention the single most important thing for a powerful A series....
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
7th Oct, 2008 at 10:36:45pm
On 7th Oct, 2008 matty said: nah it looks crap! Bunch of amateurs...everyone has forgotten to mention the single most important thing for a powerful A series.... To paint it Green!  
On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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2490 Posts Member #: 1954 Post Whore Luton Bedfordshire |
7th Oct, 2008 at 10:48:26pm
Not gonna get far without a modified fuel tank. Own the day
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 6274 Posts Member #: 509 Post Whore Isle of Man |
7th Oct, 2008 at 10:55:38pm
lots of people happily use a t piece into the pump feed "Turbo's make torque, and torque makes fun"
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2490 Posts Member #: 1954 Post Whore Luton Bedfordshire |
7th Oct, 2008 at 10:58:54pm
On 6th Oct, 2008 dan_up said: How miss understood these things are. The reason for useing straight cut drop gears is to elliminate the side thrust you get from useing helical gears which when asked to deliver the suddend loads developed by turbo engines can cause excesive wear to the gearbox casing's.
On 6th Oct, 2008 MarkGTT said: thanks mate, i think i'll go for the drops as its one weak point of the gearbox eliminated.
I would use SC drops... dont think the standard ones will last too long at your aimed power. list revised You can transfer more power through helical gears than straight cut's due to the fact that there are always more than two teeth engaged at any one time. Simple engineering fact. to transfer large amounts of power through gears double helical gears are used. these are monstrously expensive to produce so are not widely used in cars as the power produced does not warrent them. Own the day
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
7th Oct, 2008 at 11:09:52pm
i'll be modding my old tank when i do the engine swap over.
On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
7th Oct, 2008 at 11:17:49pm
But with helical gears you always get a shearing effect, and the axiel load will also cause more drag and you will lose more power than with a straight cut gear? Thats the way I understand it anyway?
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380 Posts Member #: 1835 Senior Member Thame, oxfordshire |
7th Oct, 2008 at 11:23:57pm
On 7th Oct, 2008 matty said: i understood the last 7 words so thats what i'll do!! lol, but seriously, it was my understanding that the diff and drop gears were the main gearbox "weak" points on a high output or turbo engine?
But with helical gears you always get a shearing effect, and the axiel load will also cause more drag and you will lose more power than with a straight cut gear? Thats the way I understand it anyway? The advantage of a helical gear is the contact area on each tooth is greater for the same width gear, so in theory should cope with more power as the load is spead over a greater area, but the sideways thrust seems to be the main issue. The other advantage is that they are quieter (if you count that as an advantage lol). I'd say straight cut all the way! On 23rd Aug, 2010 Nic said:
Turbophil had a butt plug made that seemed to be suitable. He may have finished with it now and have it kicking around spare |
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
7th Oct, 2008 at 11:32:19pm
Lol. I had excessive wear on my primary drop gear thrust washer when I was running helical drop gears, but since moving to straight cut, almost bugger all wear. No doubt the teeth are up to the job just wipes out the thrust washer/bearing quicker on the gear.
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