Project JetBLICK by JetBLICK

9 minute(s) of a 162 minute read

Yea, i got it from smudger, dunno if he's still around at the mo tho, ent seen him for a while. Try curley for a quote. If you want the weave showing for show purposes tho, i wouldnt bother, especially on the bonnet. What happens is the heat from the motor turns the laquer a milky colour very quickly, its not so bad on the boot, however the sun still has an effect on it. Ideally, if you can get someone to do it, you want pre-preg stuff, it'll look much much better, and will be much stronger too.


Small update, took it for MOT, nearly passed was surprised as i was expecting a massive list of problems Nothing major, just a few loose bolts, a missing split pin and the emissions.

Now the standard rockers are on, its running silly rich hence failing emissions, i dont dare touch the carb tho incase i completely fluff it up and i cant get to the rollers again. Its booked in for saturday on the rollers now and re-test on Monday, touch wood it should sail through now

2-12-2008

Yaaaay, it goes.... and its got MOT  

Its taken long enough, considering it was ment to be done for christmas!

Made somewhere between 80 and 85 bhp on the rollers on saturday (at the wheels), not 95 as pie optimistically said! because its analogue, its just got a big dial with bhp goin up in 5hp incruments, so its hard to tell exactly how much power its got when teh needle shoots up... especially when tryin to see the revs at the same time.

S'all good so far, if you keep it in the right gear, it goes like stink. You really do need to use the gears tho, especially now that they're all a little higher, i tend to use 1st loads now.

Its rubbish on petrol too!

All that said tho, its imense fun! And it goes just as well as a sorted 1380.

Cheers peeps,

2-20-2008

lol



On another note.... check out ma drive





Well, its our uni drive anyway, stuff of dreams... its so rare that all our cars are working at the same time!

Those are the GB's on too, just seein what they look like

Been out for a drive last nite, it seems the 1071 is fairly similar to the 1380, infact with a passenger in mine, the 1380 has got the legs! So, i went with craig to southam today for a chat, and so craig can book a quick tune up. We came to the decision that in a couple of weeks when both our cars are run in properly, we'll go back for a tune up and they're gonna advise me on where i can get more power.

After a quick chat tho, it seems getting real power from 1071's requires engine management, and lots of other trickery thats very different compared to what you'd normally need, like the way the head is modified. Not something i'd be lookin to do anytime soon tho but somethin to think about in the future


I got some old stuff for sale too, a close ratio box, the ol' weber 45 and an alloy inlet, all to be found here

3-23-2008

Erm... i don't know, and i try not to think Like a lot of people tho, i keep getting new ideas and trying something different.. so the cars been through loadsa different stages before its got to this, and its still got a way to go in my eyes. I dont think i could tell you how much its cost to get it this far, but its more than i'd ever imagined.


On another note... it turns out my pistons ent great at handling nearly 12-1 CR and over 8000rpm on a regular basis, and one of them has gone all wobbly. Hopefully its just a piston ring and the bore looks fine, so just need a hone and a new ring-set.

3-31-2008

Well, heres a little update for you.... Its all gone tits up!

I was driving along the other week and the motor started clonking... we pulled over straight away, to cut a long story short i left it on my drive at uni and didnt drive it, then towed it home a few days later. We got the motor out and found this... one knackard piston..




I'll get pictures of them tomorrow but the big end bearings where also destroyed. The crank however looked okay. Turns out it wasnt I went to the engineers today to have it polished and we noticed a great big ridge in the crank... with the big ends being on 60thou, this means its game over.  

We dont have a clue what went wrong, it apears that the broken piston had hit the head, which is understandable because it was flapping about without its skirt on. What i dont understand tho is how the big ends are so trashed, but the mains are immaculate. Its evedent from the mains bearings that there was a little oil contamination, but this could just as easily happened after the big ends got trashed. Gutted as i am, theres sod all i can do about it now anyway, the crank is effectively scrap.

6 weeks it lasted... it was an awesome 6 weeks, but im dissapointed after taking so much effort to make sure it was all correct, that it let go so soon.

Never-the-less, i have a backup plan and the 1071 will be back one day, stronger than ever before

4-1-2008

The pistons still flat i think, its got marks on it where its hit the head, but i think thats most likely because of it wobbling in the bore. Bromsgrove engine's said it wasn't to do with high compression due to the fact the top half of the piston is fine. They mentioned that the con-rod stretch could have lead to all the pistions just kissing the head, which would take out the bearings, but i dont think theres any marks tho on the other 3 pistons. Tis definatly weird

The motor was run in on the rollers, then i took it fairly easy for a week or so with occasional moments of ragging the tits off it. Should have been fine, it was due an oil change, previously when i changed the oil inbetween the countless trips to the rollers, nothing showed up... so i'm pretty stumped as to what happened.


The hazard switch was from Auto Electric Supplies


Hope yours goes better timbo, i think this was a freak accident, if i find out what the cause was i'll let you know so you dont make the same mistake. I will be keeping the 1071, but its gonna be a bit different next time, even more speshul, and built to be bomb-proof!

4-2-2008

Tis a bit chicken and egg, its hard to figure out what went first really. I wouldnt say slots are necessarily bad, they are perfectly fine in many peoples motors, and these pistons where given a hard time. I was warned that long periods above 8/8500rpm was their limmit, and occasionally i did go above that, but never for an extended period, only really went over 8k in first.

Need to see the other pistons to determine whether they where all hitting the head, which would explain why it happened - which so far is the most reasonable explanation. The engineers said that every 1000rpm accounts for 3thou conrod stretch. If you work this out at 9000rpm max...

9x3=27 + the 12thou my pistons sit above the block face = 39thou

And i believe that the compressed thickness of a head gasket is around 33thou? if it is, then its plain to see what happened.

Whats not plain to see tho, is how this motor ever ran with its previous owner. It would have been interesting actually to see what it was like if i'd have just left it alone and plonked it all straight on a gearbox and took it for a drive. From what i've learned so far... it shouldnt have worked

oh, and for jackman and others who like engine failures.... this is what happens to a std 998 piston at 8000rpm when you time your 286 cam in wrong....

10-3-2009

maaaan... i ent been here for aaaages

firstly.. let me say.. BUY MY WHEELS http://www.theminifo...uct/5158/cat/15

Yea, new motors all up and running now, an 1188.

Based on a south african 70mm crank, 73.5mm floating forged pistons, 'h' section rods, new head from southam mini an metro centre, split webers, bp300 cam.. erm.. i think all the rest is the same as the old 1071, gearbox and flywheel-wise. It made 90bhp at the wheels on southams rollers.

Dissapointingly only managed to get a 16.9 on the dragstrip at santa pod. So not that quick yet, needs taller gearing i think, its currently on a 3.9 diff, but i'll probly change it to a 3.7 or 3.6 soon.


The 998 i had was a standard battered bottom end, smoked horribly. You wouldnt want it if you wer driving it every day. Just had a 286, standard rockers.

11-7-2010

Heres some answers to all your questions.. I've been tooling around in this for over 2 years now and its time for more power.. so its for sale. £4k is a starting price, i'll listen to any offers.  

Copied from the ad you can find in teh classifieds



























Its consistantly made 90bhp at the wheels on both southam's rollers and Sam's @DNG in malvern. Thats about 110/105bhp at the fly.


The spec is as follows...


A south african sourced 1071 crank on 10/10. Backdrilled, balanced and lightened.


Pre A block offset bored to 73.5mm (makes 1188cc total). decked to achieve desired 11-1 CR. new camshaft and crank bearings 2000miles ago, enlarged 5/16 gearbox studs. MED braided oil pipe. ARP studs. Centre main strap.


Piper BP300 deg cam


Minispares 1.3 ratio roller rockers


MED Forged Ultra Leightweight pistons


Specialist components H-section conrods modified with smaller little end bush by Farndon cranks to accept MED lighter gudgeon pin.


Southam Mini centre trackday head 31/36 valves ported and skimmed (ported especially for use with split webers. Isky springs with titanium valve caps.


Split weber 40's (36mm chokes)


Ultralight flywheel with grey spring plate and minispares heavy duty friction plate


Minispares clubman s/c gear kit and 1.08 ratio s/c drop gears.


3.44 final drive with cross pin diff.


Right. Im not going to lie and tell you ive never ragged it. Instead, I'm going to tell you what its actually like...


Its fast. But not fast like a 1380.. Its as fast as defiantly, but it doesnt have the surge of torque like a 1380 that makes it feel as fast. Insead though, you get an engine you can litterally rev the nuts off. If you forget to change gear, it with just keep going up to 9000 rpm. Realistically tho, changes at 8k are faster. The useable power is great too, 4-8 k on an engine like this is brilliant.


Its not easy to drive at slow speeds, but you get used to it, down twisty lanes is where you'll feel the benifts most. Keep it in the right gear (which with the nicer power curve than a 1380 is easy!) and you'll have so much fun.


Please understand tho, whilst i do drive this engine, I also look after it, no expense spared.. as you can see, the spec for the internals are over engineered far beyond what an engine like this would ever be capable of. It was built 2 years ago with all new parts by myself with help from southam mini and metro centre and the block machine work by bromsgrove engineering. I have recipts for all the work done and all the parts purchased. I also have photos of all the internals before they went in and as it was being built.


Reason for sale is I want to build a SC 1380 16v sprint engine, I cant use two engines and it seems a shame to strip this engine.

Engine is currently still in the car so can be sampled and driven by prospective buyers


£4000 offers, try me...

9-13-2016

Bello, just popped into the forum doing some research and whilst I was here thought I'd update this.. Kind of..

The car was used until 5/6 years ago when it was taken off the road for rust repair. Which has escalated into a sprint conversion and major rebuild. The engine was never sold, that's being kept in the hope of finding a nice mk1 to put it in. A new engine is being built for the sprint, still short stroke, but to a much higher caliber. I set up an instagram account for the car which you can find @combustionguild Updates are slow as I don't have as much time to work on it now, what with being a kind of adult of sorts, I have a job which have to attend.

Thanks for the continued interest :)