I have been searching the internet for performance upgrades.I yet to find anything promising, I heard rumors of a supercharger being developed. My friend told me I could get more power out of Honda R type motor. Any thoughts suggestions..
Supercharged toyota engine vs Honda conversion
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wait for the federal car.excesss said:
Seriously, there's a very good chance that the current supercharger(s) will not work on the Lotus tuned engine.
The Honda motor makes more power, but it is a bit heavier.... that said, it posts supercar 0-60 times (on the lighter S1 anyway). For more information on this option, go to http://www.prototyperacing.com
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couple of points...
we also keep hearing stories about the V6 Toyota engine for the exige, great if it happens, but knowing Lotus, it woun't happen, they will just persist with the smaller enigine for at least another 10 years (remeber the Esprit?)
not than the Toyota is isnt, it's slightly more than the Rover K, but under the Toyota.
we also keep hearing stories about the V6 Toyota engine for the exige, great if it happens, but knowing Lotus, it woun't happen, they will just persist with the smaller enigine for at least another 10 years (remeber the Esprit?)
Consdierable power could be gain witha Supercharge on a Honda K20A or A2,
gotoHondata
just look at increase in power.
I run one on my mum's civic Type-R (EP3) and will soon have one in my Lotus.
No Lag like a turbo car or waiting for the boost to come on, the power delivery is very smooth which makes it very suitable for my mum as a daily driver
the car stil idles stock at between 750 - 850 rpm. no more 1500rpm hunting of the VHPD lump
there is plenty of grunt for the EP3 so should be more than enough for the power hungry Lotus driver.
gotoHondata
just look at increase in power.
I run one on my mum's civic Type-R (EP3) and will soon have one in my Lotus.
No Lag like a turbo car or waiting for the boost to come on, the power delivery is very smooth which makes it very suitable for my mum as a daily driver
the car stil idles stock at between 750 - 850 rpm. no more 1500rpm hunting of the VHPD lump
there is plenty of grunt for the EP3 so should be more than enough for the power hungry Lotus driver.
Maybe a DPM but . .
http://forums.seloc.org/viewthread.php?tid=15725
Basically toyotas own SC kit - 230 ish and 180 ftlb.
Not to tatty at all but can't imagine it will be cheap.
http://forums.seloc.org/viewthread.php?tid=15725
Basically toyotas own SC kit - 230 ish and 180 ftlb.
Not to tatty at all but can't imagine it will be cheap.
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132 Posts
Supercharged K20A Exige
I just completed the first supercharged K20A Exige conversion after trying it out on my Exige a couple of months ago.
I weighed the car with the Rover and then with the Honda, and here are the figures. Rover 1,771 lbs [805 Kg] Honda 1809 lbs [822 Kg]. The supercharger adds 20 lbs [9 Kg], so a naturally aspirated K20A Powered car only weighs 18 lbs [8 Kg] more, and the weight balance is .75% more toward the front. I didn't get a chance to check the C.G. difference, but the K20A is mounted 35 mm lower in the chassis than the Rover, measured at the crank centerline.
This particular engine made 283.4 HP at the wheel flanges on a Dynapack chassis dyno, where my engine made 292.4 HP. Looks like my engine runs a little stronger than some, but Doug Macmillan from Hondata saw 293 HP from a DC-5 Integra Type R with the same supercharger setup in England last month on Abbey Motorsport's Dynapack, so the output is fairly consistent. We can't reasonably expect to see the same HP output from every engine within a family, now can we?
The torque delivery is extremely linear, with 4 pounds of boost at just 2,000 RPM rising to a maximum of 7.5 pounds [.5 bar] at 8,000 and above. I've made some smaller diameter pulleys we'll be testing next week on Doug's RSX-S to see how well his engine performs at higher boost levels, and I've made an intercooler setup we'll be testing on my engine soon as well. Derek from Hondata has put a bit of laughing gas into his engine recently, and will be installing a turbosystem to work in conjunction with it very soon.
For superior performance in an Elise the K20A Honda is the only choice.
Joe
I just completed the first supercharged K20A Exige conversion after trying it out on my Exige a couple of months ago.
I weighed the car with the Rover and then with the Honda, and here are the figures. Rover 1,771 lbs [805 Kg] Honda 1809 lbs [822 Kg]. The supercharger adds 20 lbs [9 Kg], so a naturally aspirated K20A Powered car only weighs 18 lbs [8 Kg] more, and the weight balance is .75% more toward the front. I didn't get a chance to check the C.G. difference, but the K20A is mounted 35 mm lower in the chassis than the Rover, measured at the crank centerline.
This particular engine made 283.4 HP at the wheel flanges on a Dynapack chassis dyno, where my engine made 292.4 HP. Looks like my engine runs a little stronger than some, but Doug Macmillan from Hondata saw 293 HP from a DC-5 Integra Type R with the same supercharger setup in England last month on Abbey Motorsport's Dynapack, so the output is fairly consistent. We can't reasonably expect to see the same HP output from every engine within a family, now can we?
The torque delivery is extremely linear, with 4 pounds of boost at just 2,000 RPM rising to a maximum of 7.5 pounds [.5 bar] at 8,000 and above. I've made some smaller diameter pulleys we'll be testing next week on Doug's RSX-S to see how well his engine performs at higher boost levels, and I've made an intercooler setup we'll be testing on my engine soon as well. Derek from Hondata has put a bit of laughing gas into his engine recently, and will be installing a turbosystem to work in conjunction with it very soon.
For superior performance in an Elise the K20A Honda is the only choice.
Joe
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