275 at the hubs
290 BHP and 190 LB’s 
given mine is similar spec I reckon 275@hubs
what size injectors are you using?
In the words of 'The Price is Right"…
The winner will be the nearest, without going over…
… WINS a set of valve caps! 
[quote=ade]given mine is similar spec I reckon 275@hubs
what size injectors are you using? [/quote]
Standard 330’s …
It also has a straight cut dog box so trans losses should be less than normal, I hope…
[quote=ade]given mine is similar spec I reckon 275@hubs
[/quote]
So whats that in Flywheel numbers? (measured please. not the usual 15% for trans losses or what ever guess people seem to use)
[quote=seriouslylotus][quote=ade]given mine is similar spec I reckon 275@hubs
[/quote]
So whats that in Flywheel numbers? (measured please. not the usual 15% for trans losses or what ever guess people seem to use) [/quote]
Dave - mine is broadly similar spec, and I’ve got dyno graphs ranging from 288 through to 315 at the fly. Essex Autosport quoted 30bhp loss when both Ade and I had ours dyno’d, so that would be 305bhp at the fly.
[quote=seriouslylotus][quote=ade]given mine is similar spec I reckon 275@hubs
what size injectors are you using? [/quote]
Standard 330’s … [/quote]
You will need 550cc at least and I know your are joking with the 330’s
Just don’t want you to run 440 and run out of fueling, been there done that!
[quote=ade][quote=seriouslylotus][quote=ade]given mine is similar spec I reckon 275@hubs
what size injectors are you using? [/quote]
Standard 330’s … [/quote]
You will need 550cc at least and I know your are joking with the 330’s
Just don’t want you to run 440 and run out of fueling, been there done that! [/quote]
Thanks Ade, yes also been there etc etc
I have denso direct fit 550’s fitted but also have denso direct 650’s in the pipe line if i need them.
[quote=N17VES][quote=seriouslylotus][quote=ade]given mine is similar spec I reckon 275@hubs
[/quote]
So whats that in Flywheel numbers? (measured please. not the usual 15% for trans losses or what ever guess people seem to use) [/quote]
Dave - mine is broadly similar spec, and I’ve got dyno graphs ranging from 288 through to 315 at the fly. Essex Autosport quoted 30bhp loss when both Ade and I had ours dyno’d, so that would be 305bhp at the fly. [/quote]
Thanks, If the dyno run is done properly they should measure trans losses on the overrun with the clutch dipped. These are the numbers I am trying to establish. Some of the posts ive read seem to suggest guestimates… I’m sure you know what i mean!
The dyno measures torque, not hp ( that’s a calculation) - gets anorak.
But flywheel is always going to be a best guess unless your engine is on a bench and the dyno is strapped to the flywheel.
And… different dyno’s may read slightly differently depending on the accuracy of their calibration.
Best guess would be 12-13% loss to hubs??? So 275 calculated at hubs is 316ish.
Shoot me down
Any reason for using the 2.9 rather than a 2.8/2.7 ?
If you have sorted the achilles heel out ,then why not unleash more potential?
Yeap dyno can measure torque in both power and over run.
So i dont want a guess for trans losses, i want it measured.
Not really interested in headline numbers as they can change hour by hour day by day. But want the numbers to be as accurate as possible for future reference.
Fly wheel is not a guess if the overrun laosses are done correctly (they can be as accurate as the power run/ wheel power. But ultimately and engine dyno is more accurate.
All IMO obviously, dont want to start a silly thread…
[quote=jfk]Any reason for using the 2.9 rather than a 2.8/2.7 ?
If you have sorted the achilles heel out ,then why not unleash more potential? [/quote]
I havent fixed the achilles heal… I’ve covered it up.
I think spinning the charger faster and faster could end in tears. This will do until I build a proper engine with pistons rods etc then fit a harrop 1320
[quote=seriouslylotus][quote=jfk]Any reason for using the 2.9 rather than a 2.8/2.7 ?
If you have sorted the achilles heel out ,then why not unleash more potential? [/quote]
I havent fixed the achilles heal… I’ve covered it up.
I think spinning the charger faster and faster could end in tears. This will do until I build a proper engine with pistons rods etc then fit a harrop 1320 [/quote]
I’m with you there, been on a 2.9" pulley for a long time and don’t feel the extra 10hp ish is worth it versus the extra risk to the ring lands failing due to excessive cylinder pressures.
I also think a built engine and the 1320 is my next step, just got no cash other things keep taking my money 
[quote=ade][quote=seriouslylotus][quote=jfk]Any reason for using the 2.9 rather than a 2.8/2.7 ?
If you have sorted the achilles heel out ,then why not unleash more potential? [/quote]
I havent fixed the achilles heal… I’ve covered it up.
I think spinning the charger faster and faster could end in tears. This will do until I build a proper engine with pistons rods etc then fit a harrop 1320 [/quote]
I’m with you there, been on a 2.9" pulley for a long time and don’t feel the extra 10hp ish is worth it versus the extra risk to the ring lands failing due to excessive cylinder pressures.
I also think a built engine and the 1320 is my next step, just got no cash other things keep taking my money [/quote]
I now have 3.1 3.0 2.9 &2.8 pullies in stock so when on the rollers we may, if time permits do a bit of testing to see what happens with each…brum brum brum bang…‘‘does anyone want an Anglresey track day’’ may be the result?
[quote=ade][
I’m with you there, been on a 2.9" pulley for a long time and don’t feel the extra 10hp ish is worth it versus the extra risk to the ring lands failing due to excessive cylinder pressures.
I also think a built engine and the 1320 is my next step, just got no cash other things keep taking my money [/quote]
Agreed on the way forward and agreed that presently smaller pulleys have risk and frankly on this SC, it’s the law of diminishing returns.
I must say I’ve been impressed by the way Stephen has handled the build and he’d be on my speed dial if the funds allowed.
Maybe store a library of maps ?
Then if Jonnyfox gets a tad too large in the mirrors it’s into the paddock for a quick pulley swap and a map to suit !
All good …
We’ve built up a library of maps for the new Eliseparts ECU, everything from stock 190 NA, and other standard maps that replicate all the factory options then modified for various upgrades like different pulleys, manifolds, injectors etc
We’ve just configured the variable and non variable traction control which is much better than the Lotus one by using ignition retard, throttle and fuel adjustment instead of ignition cuts.
There will be some dash options as well, JDS have done a lovely AIM dash install on JonnyFox’s car which will be getting set up with the ECU shortly. Then we’ll do Race Technology, GEMS CD25, GEMS LDS4 etc.
Want it all to be as plug n play as poss.