Engine upgrade
Discussion
Afternoon Gentleman
I am on my 2nd Elise, traded S1 for S2 111s. Just wondering whats recommended for upgrading the power and who does it. Fed up of being beaten to 100 by M3's and Porshes.
www.dvapower.co.uk
www.turbotechnics.com/
If your interested in serious HP, Torque, and reliability, take a look at www.prototyperacing.com
hey, been readin the site for ages, but im in a dilemma!!
for my 20th b-day got a sweet 1999 111s. problem is need more power!! looked at the dva and US site, but turbo technics really got me horny!!
just wondering...what wud u lot do? spend 6k on a supercharger or other mods? tell me!!
for my 20th b-day got a sweet 1999 111s. problem is need more power!! looked at the dva and US site, but turbo technics really got me horny!!
just wondering...what wud u lot do? spend 6k on a supercharger or other mods? tell me!!
If you think that 6 grand will do for the supercharger then think again!
You need to strengthen the engine, with a steel ladder and big steel bolts. Then you will need to buy a new management system to map the fuelling. I needed to add an extra 4 fuel injectors, as the engine ran out of fuel, and then I had to add 2 water injectors to keep the thing from overheating and early detonation.
All in all, the engine cost me £18k
The next dilemma, is will the gearbox cope with the extra power? So sequential ones pop into mind.
Sell your house as its the only way you will pay for it all!!!!!
You need to strengthen the engine, with a steel ladder and big steel bolts. Then you will need to buy a new management system to map the fuelling. I needed to add an extra 4 fuel injectors, as the engine ran out of fuel, and then I had to add 2 water injectors to keep the thing from overheating and early detonation.
All in all, the engine cost me £18k
The next dilemma, is will the gearbox cope with the extra power? So sequential ones pop into mind.
Sell your house as its the only way you will pay for it all!!!!!
The TT conversion includes forged pistons, rods etc etc and comes with a warranty....for around £400 you can have a 2 year/60K mile warranty for road/track use which is appealing compared to other tuning companies.
The 'sweet spot' with the K series on a pound/performance ratio is around 180bhp. To get there youre looking at around £2K of work (paying someone else to do it) to go over 180bhp youre really looking at having forged pistons etc ...and then liners etc etc and it starts to get expensive.
Going to down the DIY route then 200-220bhp *could* be done for around £3-4K ...paying someone else then £5-6K. And you will still be left with a fairly fragile K series that will *probably* need rebuilding every 30-40K miles. If thats 5 years mileage to you then its not maybe an issue, but for a only car daily driver it may be a pain (like me). Also youre looking at 155-160ft/lb torque max from the normally aspirated route whereas the TT conversion is around 190 ft/lb. The NA engine will have to rev to 7500-8500 too.
The TT route (supercharged) looks expensive to start with, but when you consider the parts that are changed and the labour involved (clams off, installation of chargecoolers, oil coolers, pipework etc) and the warranty then its not bad in comparison - plus you gets lots of low down torque and no need to rev above 7K.
As said above the other options are complete engine transplants. If I had the dosh then one of Joes Honda conversions would be in order - the quality is excellent, the engine unstressed, reliable, economical and tunable for more power at a later date
The Ford duratec conversion is still in development, as is the Audi/Seat/VW group 1.8Turbo conversion - both should be cheaper than the Honda purely down to the engines being more common at present and available for £2K ish rather than £6-7K for the Hondas.
So its DVA route up to 160-180bhp for a couple of grand (done this myself)
TurboTechnics 190 for £6K ish
DVA Audi 1.8 - probably around £4-5K if they are happy with it once its running/tested
Ford Duratec - probably same as DVA
Joe (Prototype Racing) Honda conversion £10K
Turbo Technics 230bhp £10K (cheaper if you already have sports exhaust/cat/manifold/big valve head/cams etc e.g. 230bhp for 190bhp price)
The 'sweet spot' with the K series on a pound/performance ratio is around 180bhp. To get there youre looking at around £2K of work (paying someone else to do it) to go over 180bhp youre really looking at having forged pistons etc ...and then liners etc etc and it starts to get expensive.
Going to down the DIY route then 200-220bhp *could* be done for around £3-4K ...paying someone else then £5-6K. And you will still be left with a fairly fragile K series that will *probably* need rebuilding every 30-40K miles. If thats 5 years mileage to you then its not maybe an issue, but for a only car daily driver it may be a pain (like me). Also youre looking at 155-160ft/lb torque max from the normally aspirated route whereas the TT conversion is around 190 ft/lb. The NA engine will have to rev to 7500-8500 too.
The TT route (supercharged) looks expensive to start with, but when you consider the parts that are changed and the labour involved (clams off, installation of chargecoolers, oil coolers, pipework etc) and the warranty then its not bad in comparison - plus you gets lots of low down torque and no need to rev above 7K.
As said above the other options are complete engine transplants. If I had the dosh then one of Joes Honda conversions would be in order - the quality is excellent, the engine unstressed, reliable, economical and tunable for more power at a later date
The Ford duratec conversion is still in development, as is the Audi/Seat/VW group 1.8Turbo conversion - both should be cheaper than the Honda purely down to the engines being more common at present and available for £2K ish rather than £6-7K for the Hondas.
So its DVA route up to 160-180bhp for a couple of grand (done this myself)
TurboTechnics 190 for £6K ish
DVA Audi 1.8 - probably around £4-5K if they are happy with it once its running/tested
Ford Duratec - probably same as DVA
Joe (Prototype Racing) Honda conversion £10K
Turbo Technics 230bhp £10K (cheaper if you already have sports exhaust/cat/manifold/big valve head/cams etc e.g. 230bhp for 190bhp price)
sorry, posted across from another thread, cos no-one answered!
how do the 160bph boys stack up against the boxters?
i've been thinking about an elise, and it seemed to me that if i got 160bhp, this would work out to 2/3 the power of my car, but with 2/3 the weight i'd still be onto a winner. in your opinions would i be far wrong in this assumption? or should i stick with v8 if i wanna go fast?
how do the 160bph boys stack up against the boxters?
i've been thinking about an elise, and it seemed to me that if i got 160bhp, this would work out to 2/3 the power of my car, but with 2/3 the weight i'd still be onto a winner. in your opinions would i be far wrong in this assumption? or should i stick with v8 if i wanna go fast?
160bhp gives roughly (depending on whether S1 or S2 with/without aircon etc weight) around 0-60 in 5secs and 0-100 in 13.5-14secs ...enough to keep up with Boxster S's in the real world. Of course anything with a top speed of 150mph + will leave you over 140mph ish on the motorway ..but how often do you drag race on the M1 
Std S1 gearing is around 160mph in top but youd need 200bhp to pull it. Std S2 gearing is around 145mph in top and 160bhp is enough to see that on a straight road
I find that with the std Close ratio box on my S2 I can keep up with S1 Elises running the long ratios with 180bhp
Std S1 gearing is around 160mph in top but youd need 200bhp to pull it. Std S2 gearing is around 145mph in top and 160bhp is enough to see that on a straight road
I find that with the std Close ratio box on my S2 I can keep up with S1 Elises running the long ratios with 180bhp
it im gonna press ahead with it...soon as i saved the pennies!!Just noticed you have a Chimera rather than a Boxster. I dont think 160bhp will feel quite as quick in a straight line....but you wont have to slow down for corners so much ! ..seriously a 190bhp TT conversion would feel about the same
ps have driven both + Tuscan, Griff, Cerbie...love TVRs...but can only have one car and 30K miles a year at TVR running costs is not feasible for me !
..seriously a 190bhp TT conversion would feel about the same ps have driven both + Tuscan, Griff, Cerbie...love TVRs...but can only have one car and 30K miles a year at TVR running costs is not feasible for me !
The engine work was done by QED. They took the main spec of the engine to their 215hp version. It uses a dta pro engine management unit, with traction and launch control. The supercharger came from a company called Force1. The engine had to be strengthened and the compression lowered. We added water injection as it was running a little hot!!!!! it also has 8 injectors instead of 4 as we ran out of fuel at 5000rpm.
bogie,
no, no, crikey!
no, i smile at 'em because generally i eat 'em for breakfast.
ok, that's what i had thought.
just need to blag a drive then....
any offers?
edited to add that yes, caught site of my accumulated total at the garage the other day, coupled with fuel bill has made me take stock for a minute.
>> Edited by chimburt on Tuesday 3rd June 13:31
no, no, crikey!
no, i smile at 'em because generally i eat 'em for breakfast.
ok, that's what i had thought.
just need to blag a drive then....
any offers?
edited to add that yes, caught site of my accumulated total at the garage the other day, coupled with fuel bill has made me take stock for a minute.
>> Edited by chimburt on Tuesday 3rd June 13:31
bogie,
very kind offer, but i'm in the south west.
however, i shall remember! i'm not likely to be up there for the forseeable future, so will have to blag my ride elsewhere ( i'll probably wonder along to a dealer - no point running the insurance/'you've broken my car' gauntlet when dealers have demos available! )
i'm still in two minds. i'm going to be moving house soemtime soon, the car is running fine right now, ( so of course i can't help but grin when i'm planting my foot! ), and while i have asked our local dealer for a figure we have not yet spoken about it. then there is the griff i always fancied
so many variables.....
very kind offer, but i'm in the south west.
however, i shall remember! i'm not likely to be up there for the forseeable future, so will have to blag my ride elsewhere ( i'll probably wonder along to a dealer - no point running the insurance/'you've broken my car' gauntlet when dealers have demos available! )
i'm still in two minds. i'm going to be moving house soemtime soon, the car is running fine right now, ( so of course i can't help but grin when i'm planting my foot! ), and while i have asked our local dealer for a figure we have not yet spoken about it. then there is the griff i always fancied
so many variables.....
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