Birkin42 Posted November 15, 2007 Share Posted November 15, 2007 I weighed my S2000 engine & transmission last night. It came in at 375 lbs. This weight includes the complete engine/trany with clutch, starter, alternator, engine & transmission mounts. Pretty much everything but the wiring and AC compressor as well as no exhaust parts. I was curious how this compares to others. In particular, I'd like to know how this compares to a Zetec with T9 trany as would normally be put in a Birkin. Link to comment Share on other sites More sharing options...
slngsht Posted November 15, 2007 Share Posted November 15, 2007 Well, compared to my V8, it is light. I didn't weigh my combo, but it's pretty well documented... Dressed complete LS1 engine, including all accessories and exhaust manifolds = 430. I believe this may include AC compressor, which I don't have. T56 Transmission = 140 lbs... This is a HEAVY unit. A built T5 is about 50 lbs lighter. I believe a TKO500 is 30 lbs lighter. So, my combo weighs in at 570 lbs. Link to comment Share on other sites More sharing options...
yellowss7 Posted November 15, 2007 Share Posted November 15, 2007 Save over 100 lbs. get a Rover K Series Tom Link to comment Share on other sites More sharing options...
Birkin42 Posted November 15, 2007 Author Share Posted November 15, 2007 How light is a K series complete with transmission? The engine was never available in Canada as far as I know so it definitely wouldn't make the most convenient donor for me. Now a bike engine based V8, now we're talking. Link to comment Share on other sites More sharing options...
JohnCh Posted November 15, 2007 Share Posted November 15, 2007 Someone in the UK weighed a ready-to-install Duratec with most of the standard mods at 262 lb. (see breakdown below). A Type-9 weighs 70lb and I weighed my Raceline bellhousing at 8.4 lb. Add another couple of pounds for the clutch master cylinder, and a ready to install Duratec/Type-9 combo is roughly 342lb. A Duratec running the very common Denso lightweight alternator (-5.5lb) and the later plastic valve cover (-2.2) would come in at ~334lb. Duratec engine (c/w steel flywheel) 94.07kg AP Clutch friction plate 1.159kg AP Clutch cover plate 4.369kg Starter motor (c/w solenoid) 3.118kg Oil Filter 0.721kg Throttle Body (cyl. 1 & 2) 1.125kg Throttle Body (cyl. 3 & 4) 1.064kg Brkt T.Body/accel cable mounting 0.111kg N/Side engine mount 1.057kg 4No. Bolts for above mount 0.056kg O/Side engine Mount (c/w rubber) 1.458kg Fuel rail c/w 4 injectors 0.921kg N/Side top fan belt mount/idle pulley 0.392kg Oil pressure switch & sender set up 0.256kg Idle Pulley 0.385kg Idle Pulley & Alternator tension brkt 0.512kg Alternator mounting brkt 0.305kg Alternator (Standard Ford) 5.10kg Raceline water rail, t.stat & housing 1.615kg Coil Pack & 4 plug leads 1.00kg 8 x exhaust studs & nuts 0.27kg (total for 8) Engine Total (ready to install inc. mounts) 119.064 kG -John Link to comment Share on other sites More sharing options...
yellowss7 Posted November 15, 2007 Share Posted November 15, 2007 Total weight for engine and Caterham 6 speed is about 270 lbs. It's pretty too! http://www.usa7s.com/aspnetforum/upload/956381293_hp_scanDS_710410582938.jpghttp://www.usa7s.com/aspnetforum/upload/956420069_gearbox and engine.jpg Link to comment Share on other sites More sharing options...
Dave W Posted November 15, 2007 Share Posted November 15, 2007 Toyota 4AGE with alternator and T-50 transmission, no engine mounts or exhaust manifold 273lbs. Link to comment Share on other sites More sharing options...
JohnCh Posted November 15, 2007 Share Posted November 15, 2007 Did a search on BlatChat and came up with this interesting thread. -John Link to comment Share on other sites More sharing options...
SR27.Seth Posted November 15, 2007 Share Posted November 15, 2007 All weights taken by me- all 'prepped' to go into a Seven or some other conversion: Miata 1.6L Motor: 252# Trans 80# total 332# SR20DET Motor 375# (I know it is heavy for an all aluminum block, but the turbo and manifold weigh 32 lbs alone and the Crank weighs a bit over 35lbs!!- more than some v-8s, but how else would you expect a stock bottom end to take 600 horsies?) Trans (5spd) 90# total 470# CA18DET Motor 365# Trans 90# total 460# Toyota 22re Motor 311# Trans 125# total 436# MGB 1800 motor 365# trans (4O/D) 135# total 495# Link to comment Share on other sites More sharing options...
Birkin42 Posted November 15, 2007 Author Share Posted November 15, 2007 Interesting thread. I will have to go and weigh my transmission separately so I can see what the break down is. The hard thing to know is what parts are all included when someone states engine weights, or are they troughing on light weight parts like altenators, clutches, etc. Looks like the S2000 will be very similar weight to the standard Zetec with T9. Nice to know. Looks like the newer Duratec is a bit lighter still. Those K series seem to be really light. I guess the ultimate in weight savings is a BEC. Maybe some day. Link to comment Share on other sites More sharing options...
WestTexasS2K Posted November 15, 2007 Share Posted November 15, 2007 S2000 motor isnt bad but the trans weighs 96 lbs. I think it is a nice package for the power and the reliabilty you get. Link to comment Share on other sites More sharing options...
slngsht Posted November 16, 2007 Share Posted November 16, 2007 All weights taken by me- all 'prepped' to go into a Seven or some other conversion: Miata 1.6L Motor: 252# Trans 80# total 332# SR20DET Motor 375# (I know it is heavy for an all aluminum block, but the turbo and manifold weigh 32 lbs alone and the Crank weighs a bit over 35lbs!!- more than some v-8s, but how else would you expect a stock bottom end to take 600 horsies?) Trans (5spd) 90# total 470# CA18DET Motor 365# Trans 90# total 460# Toyota 22re Motor 311# Trans 125# total 436# MGB 1800 motor 365# trans (4O/D) 135# total 495# Seth, do these weights include exhaust manifold? Link to comment Share on other sites More sharing options...
Birkin42 Posted November 16, 2007 Author Share Posted November 16, 2007 Measured the weight of my trany last night and got the same 96 lbs. That makes the engine about 280 lbs, maybe not the lightest out there, but not bad considering out of the box hp, stock Honda reliability, and relatively cheap to buy used. Those Toyota motors aren't particularly light. Link to comment Share on other sites More sharing options...
BusaLoco Posted November 16, 2007 Share Posted November 16, 2007 For what it's worth, my Hayabusa (with transmission) weighs in at 188 lbs. Power vs. Weight ... Brilliant http://www.usa7s.com/aspnetforum/upload/1072019541_DSC00706.JPG Link to comment Share on other sites More sharing options...
Birkin42 Posted November 16, 2007 Author Share Posted November 16, 2007 I'm guessing a small amount of the weight savings will be lost to a heavier more complex drive shaft, and the mechanics to provide reverse, if you have it. Needless to say, it is way lighter then any auto based drivetrain. Link to comment Share on other sites More sharing options...
BusaLoco Posted November 16, 2007 Share Posted November 16, 2007 Well actually the prop shaft is specially made for bike engined cars (and lighter than yours) and (if one goes for a mechanical reverser) a Quaife In-Line Reversing box weighs 14 lbs. The good news is that this extra weight would sit right in front of the differential. Therefore better balance front to rear. Link to comment Share on other sites More sharing options...
Birkin42 Posted November 16, 2007 Author Share Posted November 16, 2007 The drive shaft in my car will be about 18" long and won't be too heavy. I believe you have a Deman. I helped Dan sort out his drive shaft issues a few years ago when I was considering buying one of his cars. I agree that BEC have unique drive shaft requirements, but this does not make them light weight. I'm not sure if you have the 2 pc version with the hanger bearing or the 1 pc long shaft. In either case, the total length of the shaft is about 4 1/2 ft I believe. Either version but particularly the 2 pc version is going to be significantly heavier then what I will end up with. The torque that each need to transfer isn't likely too much different either. The S2000 has a bit more torque, probably has a lower first gear, but uses a 4.11 rear end. Your Busa doesn't produce as much torque but has a significant primary reduction in the engine which slows down the speed of the drive shaft and increases the torque load on it. This is reflected in the 3.08 rear end. I think in the end it will be close to a wash. I am not trying to pick a fight or anything, just trying to add my opinion. Anyway, the point of my previous post was to agree that a BEC will be significantly lighter even with a few unique bits that a more conventional drivetrain wouldn't require. Link to comment Share on other sites More sharing options...
BusaLoco Posted November 16, 2007 Share Posted November 16, 2007 I would never pick a fight with a fellow Canadian (unless he was a Leafs Fan), ... and of course, your argument is perfectly logical. :cheers: PS I have the 2 piece shaft. I am getting so many different opinions about reverse. I am beginning to think that the best option is to buy the Quaife Box. It's just 7 1/2 inches long and will fit nicely in the tunnel. The Quaife has British Ford flanges so I guess I will have to get some machining work done too! I don't know if the existing shaft will reduce enough (by 7 1/2 inches) so I will probably be looking for a new shaft as well. Got any good ideas? Link to comment Share on other sites More sharing options...
Mandurath Posted November 17, 2007 Share Posted November 17, 2007 Don't have the weight for my 2.3, but, i understand it weighs about the same as slngsht's v8. Link to comment Share on other sites More sharing options...
xflow7 Posted November 17, 2007 Share Posted November 17, 2007 There's a useful list of many, many engine weights here: http://www.bacomatic.org/~dw/library/txt/engfyi.htm (believe it or not, this is not mine; different Dave Williams) Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now