rob wild Posted July 17, 2008 Share Posted July 17, 2008 (edited) Yep me as well I will document the project over the next few coming months: Heres a few starting photos of it in my garage. Starting point The engine came from Gaz1 (thanks very much for your help) and was at AFR with Matt (again cheers for the packaging etc ) The goal for this project is to build an engine for a reliable single street car. Its reported to have bore scoring on all 6 cylinders. Although it will have to be checked. So yes i bough it fully in the knowledge that although it was running it does obviously have a problem and will need stripping and rebuilding. May I just add that this is purely a technical exercise! There is nothing wrong with my car (bar the crappy BL gearbox which keeps leaking!) and its as strong as ever engine wise! What i wanted todo with this project is build something that tests a few different theory's/urban myths that i have read over the years of supra ownership. This build will be a mixture of new OEM stock components and only after market part which i feel will help achieve the goal. I may also if i get a chance do some back to back comparisons between the stock bottom end and the new built one. First things first i've just organized my tool kit: Got Engine stand GotPiston ring extractor tool GotPiston ring groove cleaner GotPiston ring expander need to buyA DTI with 0.001mm resolution. GotA Bore gauge Got External micrometer Got Feeler gauge set with resolution of at least 0.01mm from 0.03mm. need to buyVernier calipers. need to buyPlastigage strip. GotTorque wrench. GotValve spring compressor. GotValve stem seal pliers. GotGasket scraper. Got someSelection of wire and nylon brush's. GotValve lapping tool. need to buyCylinder ridge reamer. need to buyToyota SST 09213-70010, 09330-0021. GotEngineers blue. GotLoctite 242. GotLoctite 577. (As recommended by Mr License cheers ) I've also bought some garage flooring and wall paint to keep the area as clean as possible Current spec of engine 86.5mm CP Pistons HKS 256 / 264 cams Head ported and flowed:- 5 angle inlet and 3 angle exhaust valve. HKS 2.0mm headgasket ARP Head ARP Main ARP Rod Studs. New OEM oil pump Compression Ratio Current Compression Ratio (Some estimations) Enter Bore: 8.65 Enter Stroke: 8.6 Total in CC: 505.38cc Compressed Volume Diameter gasket bore hole: 8.6 Compressed gasket width 0.2 Total in CC: 11.62cc Piston volume: 15cc(estimate will update) Combustion Chamber Volume: 45.7 Subtotal: 72.32 Compression Ratio: 7.99:1 So basically with the calculation it looks like the current CR is 8:1 which is .5 lower than stock. Although keeping a lower Compression ratio will allow me to run more boost especially on pumped gas it may make the engine 'laggy'. In the interest of keeping the car a 'fast' street car one of the big characteristics for me is lower down power. Therefore I may rework the above figure to give me a 8.5:1 ratio. Again this may be an area which after the project is complete be very interesting when comparing it to my current stock engine which is 8.5:1 Anyway im off on holiday tomorrow But start updating more when i get back Edited July 17, 2008 by rob wild (see edit history) Quote Link to comment Share on other sites More sharing options...
UltraFlynn Posted July 17, 2008 Share Posted July 17, 2008 Quote Link to comment Share on other sites More sharing options...
DaveSupTT Posted July 17, 2008 Share Posted July 17, 2008 subscribed as well! Quote Link to comment Share on other sites More sharing options...
Jellybean Posted July 17, 2008 Share Posted July 17, 2008 subscribed Quote Link to comment Share on other sites More sharing options...
Trig Posted July 17, 2008 Share Posted July 17, 2008 Quote Link to comment Share on other sites More sharing options...
jevansio Posted July 17, 2008 Share Posted July 17, 2008 Nice one Rob, you putting it your Supe when it's done, or are you getting another? Quote Link to comment Share on other sites More sharing options...
rob wild Posted July 17, 2008 Author Share Posted July 17, 2008 All welcome Nice one Rob, you putting it your Supe when it's done, or are you getting another? Not decide TBH mine is running really well engine wise and is really good to drive so I think i would find it really hard to start messing with it! But on the other hand with the prices of N/A these days I may build another car up Quote Link to comment Share on other sites More sharing options...
bignum Posted July 17, 2008 Share Posted July 17, 2008 Nice, i would love to have a go at this, just need to get divorced 1st, Quote Link to comment Share on other sites More sharing options...
hiten55 Posted July 17, 2008 Share Posted July 17, 2008 ooh i love these threads Quote Link to comment Share on other sites More sharing options...
bolarbag Posted July 17, 2008 Share Posted July 17, 2008 Subscribed! Quote Link to comment Share on other sites More sharing options...
Aero-M Posted July 17, 2008 Share Posted July 17, 2008 subscribed Quote Link to comment Share on other sites More sharing options...
Aero-M Posted July 17, 2008 Share Posted July 17, 2008 I love those lexus wheels on the supe, really suit it, I think I will change for these next Quote Link to comment Share on other sites More sharing options...
SimonB Posted July 17, 2008 Share Posted July 17, 2008 Nice one, engine building is obviously in fashion this year! I can't think why you'd need a DTI accurate to 0.001mm - they are pretty expensive and they only things you need that level of accuracy for are bores and diameters of things. I doubt you'll need a ridge reamer either unless it's really coked up. My 80000 mile stock engine had no ridges - I'd have a look before buying one. Good luck with it! Quote Link to comment Share on other sites More sharing options...
paul mac Posted July 17, 2008 Share Posted July 17, 2008 i fully agree with your thinking on the compression ratio with regard to losing bottom end torque, i am going to do the same with mine, ie keep the stock compression ratio and run as much boost as possible on v-power until it begins to det, for me this makes much more sense than lowing the compression ratio to run a bit more bhp when bouncing off the rev limiter, are you going to stick with the auto ?, good luck matey and we'll have to compare notes, mines on hold at the moment till our shutdown when i'll get more money to carry on, trying to move house and build a 2JZ motor really drains the resources Quote Link to comment Share on other sites More sharing options...
hoff Posted July 17, 2008 Share Posted July 17, 2008 Im looking forward to seeing the reasults Rob mate. Good luck:) Quote Link to comment Share on other sites More sharing options...
kylestt Posted July 17, 2008 Share Posted July 17, 2008 Awesome! Goodluck with it all Rob! Yell if you need anything ;-) Quote Link to comment Share on other sites More sharing options...
rob wild Posted July 17, 2008 Author Share Posted July 17, 2008 Nice one, engine building is obviously in fashion this year! I can't think why you'd need a DTI accurate to 0.001mm - they are pretty expensive and they only things you need that level of accuracy for are bores and diameters of things. I doubt you'll need a ridge reamer either unless it's really coked up. My 80000 mile stock engine had no ridges - I'd have a look before buying one. Good luck with it! Good advice Simon cheers there is a really good shop near me that specializes in engineering tools and the guy i've know for a good few years said i could borrow one i fully agree with your thinking on the compression ratio with regard to losing bottom end torque, i am going to do the same with mine, ie keep the stock compression ratio and run as much boost as possible on v-power until it begins to det, for me this makes much more sense than lowing the compression ratio to run a bit more bhp when bouncing off the rev limiter, are you going to stick with the auto ?, good luck matey and we'll have to compare notes, mines on hold at the moment till our shutdown when i'll get more money to carry on, trying to move house and build a 2JZ motor really drains the resources Yeah will have to have a chat about specs at some point matey or you could always pop over mine for a brew once i've got it stripped. Always good to get a second opinion Im going to see if I can get a Auto box that actually works i suppose 3rd time lucky TBH i'm not shooting for big numbers here because I don't think that really works with the goal of it being a street single and as many have said before (including yourself) just how much power do you need in a street supra!?! Plus at above 650RWHP i start to worry about grip, chassis strength, forces on suspension components, down force etc etc Mine already 'tail flicks' at 40-50mph when put into WOT and kickdown @ 1.1bar So I think that if i can get a good uprated box hopefully it should be able to hold the power. Awesome! Goodluck with it all Rob! Yell if you need anything ;-) Cheers Kyle Fancy doing some sponsorship Don't worry I will be send you a spec list very shortly for you to price up Quote Link to comment Share on other sites More sharing options...
MarkR Posted July 17, 2008 Share Posted July 17, 2008 Quote Link to comment Share on other sites More sharing options...
garetheves Posted July 17, 2008 Share Posted July 17, 2008 Good luck mate, sounds interesting. Would love to come give youa hand for an afternoon/day at some point. Im not much of a mechanic but i can hold the tools, make the brews and bacon butties Quote Link to comment Share on other sites More sharing options...
gaz1 Posted July 17, 2008 Share Posted July 17, 2008 good luck with it rob;) oh and first dibbs if selling when rebuilt:D Quote Link to comment Share on other sites More sharing options...
Sted Posted July 17, 2008 Share Posted July 17, 2008 Looking forward to this Rob good luck matey Quote Link to comment Share on other sites More sharing options...
rob wild Posted July 18, 2008 Author Share Posted July 18, 2008 Good luck mate, sounds interesting. Would love to come give youa hand for an afternoon/day at some point. Im not much of a mechanic but i can hold the tools, make the brews and bacon butties No problem matey I'll give you a shout when I get back you're more than welcome to come for a brew and look buddy good luck with it rob;) oh and first dibbs if selling when rebuilt:D Cheers Gaz You know matey (PS the money has left my account so should be with you shortly ) Looking forward to this Rob good luck matey Cheers dude Quote Link to comment Share on other sites More sharing options...
paul mac Posted July 18, 2008 Share Posted July 18, 2008 Good advice Simon cheers Yeah will have to have a chat about specs at some point matey or you could always pop over mine for a brew once i've got it stripped. Always good to get a second opinion yeah give me a shout when you get back from your hols, hopefully this time we meet up i wont be going home on a transporter Quote Link to comment Share on other sites More sharing options...
paul mac Posted July 18, 2008 Share Posted July 18, 2008 Im not much of a mechanic but i can hold the tools hey Gaz how come you've never offered to hold my tool Quote Link to comment Share on other sites More sharing options...
Ian Ian Posted July 18, 2008 Share Posted July 18, 2008 give me a shout Rob when you want a brew and some "chilli" ............seriously i would love to watch and help out, love to learn some more about the oily whirly things that happen under the bonnet Cheers -Ian- Quote Link to comment Share on other sites More sharing options...
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