Deleted User Posted April 11, 2006 Share Posted April 11, 2006 post removed on request of author Link to comment Share on other sites More sharing options...
dougiewood Posted April 11, 2006 Share Posted April 11, 2006 Hi,I have been reading some of the posts above about the mods and I remember my father saying the other day that SJW548S easily had around 340bhp. I don't know what bits and pieces where done to it but I do know that my father changed alot from the 'works' engine, through his own mods. If anybody is interested I can get the full spec from him and post it or any suggestions that may arise from questionsRegardsDoug Link to comment Share on other sites More sharing options...
Deleted User Posted April 11, 2006 Share Posted April 11, 2006 post removed on request of author Link to comment Share on other sites More sharing options...
steve1365 Posted April 11, 2006 Author Share Posted April 11, 2006 I assumed that going the a very highly regarded expert would be the safest bet. Obviously until the car is running we won't know for sure but I'm starting to worry now! My faith will remain with the man though until proved otherwise... Link to comment Share on other sites More sharing options...
leylandracer Posted April 11, 2006 Share Posted April 11, 2006 This is a quote from the V8 forum last year, Still not sure if he ever got it sorted, interesting??Anyway, hope they work out ok SteveI will try to disribe the history of the progress fault best i can but im not a engine whiz and def not technically knowlagedThe engine was fully built setup and dynoed by JE DevelopmentsThe main jet mixture i would say was correct on his dyno but im led to believe pogression is hard to set on a engine dyno His setup included 38mm choke Using F7 em/tube + 150 main jet dont know about air corrector size or idle jet sizeDriving the car steady around town on a steady trottle you could here the carbs chuffing or slight poping back every now and againIf you acelerated slightly the car would cough and splutter (anywere from 1200 rpm to 3500 rpm) as if no fuel was goin through the carb but give it a swirt of throttle it would jump into life even at 3500 rpm on a constant throttle if you acelerated slightly it would cough and splutter ( not nice trying to balance the car mid corner and then splutter)Get the car rolling in first gear 12/1500 rpm floor the trottle it would just pull like a train snaking up the roadAt the SVA co was 8.5 % and the offside hydrcarbons 200 nearside bank 4500 yes 4500 Took the car to a local Rolling road recomended by webcon and he said on the rolling road when you squized the throttle you basically got no fuelSet the idle mixture and balanced the carbs bank to bank but not pair to pair on each bank which i realized later but the hydrocarbons on the nearside are still high and unsteady (going up and down on there own)they range from 300 to 1400 He increased the main jet from 150 to 165 which then produced the 24" flames on the over run which would last for 4/5 seconds so i would presome this is masive overfuelingTold him to leave it as was as my SVA was the next day but driving home it was poping a lot from the exhaust and carbsAfter SVA next day refitted the 150 main jet and fitted the 36mm choke to icrease air speed over the main jetThis inproved the light trottle response by quite a large degree but still did a bit of poping/chuffing back through the carDrive the car 70 mph in top pulling 2200rpm steady trottle and you start to drive up a hill the car would start to splutter as if no fuel squeeze the trottle it woul vertually cut of give it a quarter stab of throttle it coughs into life and throws you back in the seatThe chuffing back from the carbs i am led to believe is lean runningJohn eales had it last week and drilled out two of the progression hole in the carbs (one top one bottom in each carb) by 0.2mm and drilled out the idel jet this has made the car pull a lot stronger 1000/1800 rpm but if you set of from a junction on a lightish throttle taking the revs up to 3000 it starts to splutter when it reaches 2500 rpm and only a stab of the throttle wakes it upCruising up a hill is a lot better and will on a very light throttle it would even accelerate slightlyI can now see as you squirt the throttle black smoke puffing out of the exhaust and economy and gone down by 40% so would say now its very rich Also get a lot of popping from the exhaust but none from the carbs and the tickover rises as the heat in the engine bay rises starts of with 1000 rpm tickover but within 5 mins this has risen to 1250 onthe run home it increases to 1500 rpm stop the car fill up with fuel 1000rpm again but soon back to 1500 rpmSorry to faffle on but hope this give you a understandable discription of the running problemWhat do you thinkIan you set up sound great were are the pictures Mark Link to comment Share on other sites More sharing options...
Deleted User Posted April 11, 2006 Share Posted April 11, 2006 post removed on request of author Link to comment Share on other sites More sharing options...
Deleted User Posted April 11, 2006 Share Posted April 11, 2006 post removed on request of author Link to comment Share on other sites More sharing options...
steve1365 Posted April 11, 2006 Author Share Posted April 11, 2006 Quietly confident! :D Link to comment Share on other sites More sharing options...
leylandracer Posted April 11, 2006 Share Posted April 11, 2006 Should be getting mine back this week (Engine in and running i hope) Just hope there isnt a jynx on it lol, i collected the engine last Thursday from V8 Developments and guess what? the hire van broke down 8mls from York :-( ) Only a few more sleepless nights to go, then the moment of truth :-)Like i said Steve, JE is no mug, so sleep easy ;-) Link to comment Share on other sites More sharing options...
steve1365 Posted April 22, 2006 Author Share Posted April 22, 2006 ;D ;D ;D ;D ;D ;D ;DBeen for a drive today ;D ;D ;D ;D ;D ;D Link to comment Share on other sites More sharing options...
chris turner Posted April 22, 2006 Share Posted April 22, 2006 Great news Steve. Link to comment Share on other sites More sharing options...
steve1365 Posted April 22, 2006 Author Share Posted April 22, 2006 Well it's not finished quite yet but it's drivable. Once it was warmed up and the tyres were warm there wasn't a lot to complain about.. a few drops of fuel came out of the offside near carb and dripped onto the exhaust manifold (!)... also worrying... the grip and the power on energetic standing start take off's actually induces motion sickness... Link to comment Share on other sites More sharing options...
leylandracer Posted April 23, 2006 Share Posted April 23, 2006 Glad to know the DCOE 50's are fine Steve :-) i was starting to get worried with my 48's, Mine still isnt rolling yet, but hopfully it should be go for the drag meeting at the end of the month. Link to comment Share on other sites More sharing options...
Beans Posted April 23, 2006 Share Posted April 23, 2006 Good to hear that it turned out allright :)And now offcourse I am very interested in the set up off the carbs (and the rest of the engine that is) ;) Link to comment Share on other sites More sharing options...
leylandracer Posted April 25, 2006 Share Posted April 25, 2006 Just called at the guys who are fitting the V8, Bad news:-( maybe partly my fault? no starter, no alternator bracket together with a few more bits n pieces, think it must have been the exitment og getting the engine back, so it looks like a 200 mile round journy tomoz:-( all for the love of a TR7 V8 lolWhat does concern me more (If anyone has the answer tonight i might sleep lol) the mechanic (non V8 specialist) mentioned that there were no head bolts below the exhaust ports? above yes but below none?holes with threads for the head bolts, he was curious if this is maybe how they should be for some reason? i wouldnt have thought they would have missed them? surly not? So if somone can let me sleep tonight it wold be appreciated :-) Link to comment Share on other sites More sharing options...
Smallfry Posted April 25, 2006 Share Posted April 25, 2006 Rover actually did away with these bolts on later engines, because they were the cause of "tipping" the head, and causing compression and fluid leakage problems.As long as your man has not "forgotten" any of the other bolts or studs, the engine will be better for it.The usual thing (for me) is to plug the vacant holes because it looks messy and they will collect crap. I put the bolts back in with low strength threadlock, but only do them up to 10 lbs/ft, thus not spoiling the head seal. Link to comment Share on other sites More sharing options...
Smallfry Posted April 25, 2006 Share Posted April 25, 2006 Just reading the previous posts, and I have to point out that while JE is highly regarded..........as he should be, but he is NOT a carburation expert. Link to comment Share on other sites More sharing options...
leylandracer Posted April 26, 2006 Share Posted April 26, 2006 Cheers for that;-) Link to comment Share on other sites More sharing options...
leylandracer Posted May 13, 2006 Share Posted May 13, 2006 Its Back!!!!!!! :) 6 months all in from the disaster on the Rolling road, to the rebuild with the new spec at V8 Developments to the engine fitting,Really impressed the carbs are working MUCH better if not perfect, on full throttle im getting AFR readings in the low 14.s light cruise in the 15,s(Innovate wideband highy recomended!!!!) the problem is the transistion from light to full throttle is a little poor, V8D have suggested that my manifolds are possibly flowing better then there's hence running a litle leaner then on there dyno(Custom big bore manifolds and system, Zorstec) so maybe sightly bigger pump jets?Besides the above really pleased, and FAST or what :)Look out Escort Cosworths ;) The RX7 is back on Monday after a re-map and it will be running more boost (450 bhp+) so it will be power v tourqe, as Dragon Performance said it will be interesting :-/Steve Link to comment Share on other sites More sharing options...
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Lister Posted May 15, 2006 Share Posted May 15, 2006 well im going to get my father in law to do mine. He used to build rally cars in the 70's and 80's so he should be used to setting up the tr7. managed to get the head off and the valves all out and cleaned up. even came up really good. so off to the engine people for the head skimming ( slightly ) and then back to be put together before the old one is out .AL ;D Link to comment Share on other sites More sharing options...
stricky Posted May 17, 2006 Share Posted May 17, 2006 125mph....that IS impressive.....nice one Steve, let us know how you get on versus the RX7. What sort of gearbox n diff you using ? Link to comment Share on other sites More sharing options...
leylandracer Posted May 23, 2006 Share Posted May 23, 2006 Still no race ;-( dam rain, Gearbox is the old faithfull LT77 (Rebuilt) so its on or near its limits? Axle 3.08:1 with LSD, Clutch Helix Motor sport, A nice T5 Close ratio with streight cut gears would be nice but that would be risking divorce me thinks ;-) Link to comment Share on other sites More sharing options...
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