sleepercorty Posted November 12, 2011 Report Share Posted November 12, 2011 (edited) bad things happen when i get bored, i have a yn85r hilux as my run around to pick up parts and so on and have been driving it a fair bit lately so ive had boost withdrawals from not driving the cressida. so i bought a wrx standard turbo off a mate for $100 and I'm going to do a blow through weber carby set up. i spent today doing half of the job so all i really have to do is make a J pipe for the turbo, exhaust and boost pipe. ive done as much as i can so its still drivable and will try do the rest next weekend. first thing i did was pull the sump off and weld a fitting in for the oil drain then i pulled dissy apart and drilled two holes and put screws in to stop the mechanical advance, i set it to 20 degrees but was was to gutless so its now probably around 28 degrees. then found a t-piece in the shed that will run the oil feed line for the turbo from the oil sender, and also drilled and tapped a thread in the bottom side of the fuel pump (under the diaphram). the theory behind the fuel pump is that if you add boost pressure under the diaphram it makes up for the pressure of the boost in the carby. if you don't do this the pressure of the boost pushes the fuel out of the carby and back to the fuel tank. so technically i don't think it adds fuel pressure it just equalises it, a mate of mine gave me the idea and he said hes done it before and worked well so will see. worst case if it doesnt work will just buy a fuel reg and electric pump. then made a boost hat for the carby, id already put the carby on a while ago so that part was already done. i didnt have an air filter to suit so you will see my quality alternative if all goes to plan it should only cost about $300 and I'm thinking on around 8-10psi should double my power. i have a dyno graph somewhere from when i put the weber carby on, it was the first carby id tuned and turned out okay for a stock 2y (1.8 litre) with a weber, think it made 62rwhp so i suppose the goal will be around 120rwhp heres a picture of the parts rig in action its about the only one of have of it, its not something i really would normally show off Edited November 12, 2011 by sleepercorty Quote Link to comment Share on other sites More sharing options...
Figjam14 Posted November 13, 2011 Report Share Posted November 13, 2011 weapon boii Quote Link to comment Share on other sites More sharing options...
Ella Posted November 13, 2011 Report Share Posted November 13, 2011 well played sir! Quote Link to comment Share on other sites More sharing options...
oh what a nissan feeling! Posted November 14, 2011 Report Share Posted November 14, 2011 Ha ha, nice work, its kind of addictive isn't it. sometimes the most budget builds are the most fun. :y: Quote Link to comment Share on other sites More sharing options...
sleepercorty Posted November 15, 2011 Author Report Share Posted November 15, 2011 yeh budget builds are always the most fun, i figured out today that the vacuum advance isnt working so will need to get a new diaphram for it so i can have advanced under vacuum and it will retard as soon as boost comes in Quote Link to comment Share on other sites More sharing options...
azza91 Posted November 16, 2011 Report Share Posted November 16, 2011 wow love backyard spec budget builds Quote Link to comment Share on other sites More sharing options...
sleepercorty Posted November 18, 2011 Author Report Share Posted November 18, 2011 fisinhed this last night. i guessed with the drill bit for the jet size but couldnt of got it more perfect, if you look at the dyno graph it has 12.0 afr's as flat as ive ever seen with any car. drove it around last night and started with 10 degrees of timing wasnt enough so went to 20 degrees and left it there, then added an extra 5 degree on the dyno. so has 25 degrees static and vacuum advance takes it to around 35 degrees off boost and when boost comes in its back to 25 no sign of any detonation. its just running 8psi straight off the actuator, will drive it for a little bit then will probably see how 14psi looks :lolcry: . the dyno graph is before and after boost so made a good improvement 1 Quote Link to comment Share on other sites More sharing options...
GJM85 Posted November 18, 2011 Report Share Posted November 18, 2011 That is f@$king cool! Quote Link to comment Share on other sites More sharing options...
Ella Posted November 18, 2011 Report Share Posted November 18, 2011 well done mate! Quote Link to comment Share on other sites More sharing options...
ae824ate Posted November 18, 2011 Report Share Posted November 18, 2011 (edited) Holy f@$k mate, almost reached your double power aim. Good job, i am so doing my 4k! Edited November 18, 2011 by ae824ate Quote Link to comment Share on other sites More sharing options...
SLO-030 Posted November 19, 2011 Report Share Posted November 19, 2011 Certifiably Cool! Love it man :cool: Quote Link to comment Share on other sites More sharing options...
PMP020 Posted November 19, 2011 Report Share Posted November 19, 2011 awesome. made the power (close enough) BUT the question is, how did the budget end up? Cheers, Scott Quote Link to comment Share on other sites More sharing options...
sleepercorty Posted November 19, 2011 Author Report Share Posted November 19, 2011 awesome. made the power (close enough) BUT the question is, how did the budget end up? Cheers, Scott cost was under $300 Quote Link to comment Share on other sites More sharing options...
azza91 Posted November 22, 2011 Report Share Posted November 22, 2011 nice double the power for SFA Quote Link to comment Share on other sites More sharing options...
blktoy35 Posted November 23, 2011 Report Share Posted November 23, 2011 thats great result for small $. you have some skills! must feel so much better to drive... when u wind the boost up you going to run a ic? Quote Link to comment Share on other sites More sharing options...
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