Naturally Aspirated, Stroked, Supercharged, or Turbo? - LotusTalk

aletes · 02-24-2005, 03:23 PM

Which tuning option interests you the most and why?

Gridlock · 02-24-2005, 03:34 PM

I like the idea of keeping the engine normally aspirated. I think that turbos and superchargers change the character of the engine and car too much, and often takes away from throttle response. In fact, I think that a lighter flywheel would also be nice to enhance throttle response. A stroker kit might be nice, but I don't want to pull the engine apart.

Cisitalia · 02-24-2005, 04:31 PM

I wish Lotus would have put the Subaru WRX or Sti engine in the Elise. Gobs of torque, low center of gravity and very reliable. I had a WRX and loved the engine. This would make the Elise a dream car. The problem with this is the AWD transmission and engine/transmission placement would not be condusive to fitting in the Elise.

I like turbos better, if properly designed from the beginning.

charliex · 02-24-2005, 05:12 PM

what no nitrous ?

sleepless · 02-24-2005, 05:22 PM

I'd be very happy with 210HP

aletes · 02-25-2005, 01:53 AM

Quote:

Originally Posted by charliex

what no nitrous ?

Oops!

NMRJock · 02-25-2005, 02:30 AM

I'm plenty happy to stay NA for the time being. It's a bit early to be opening up the motor and I need my warranty.

aletes · 02-25-2005, 02:31 AM

I am interested in a supercharger because of the low RPM performance boost. I think the performance envelope can be increased substantially in the lower end of the power band without the need to increase grip or modify other drive train or suspension components. I think the high/peak RPM performance of the 2ZZ-GE nicely matches the grip and balance of an Elise with an LSS package.

BrettP · 02-25-2005, 06:22 AM

Quote:

Originally Posted by sleepless

I'd be very happy with 210HP

We hope to make you very happy shortly!

That is my target for our entry N/A package.

sleepless · 02-25-2005, 07:12 AM

Quote:

Originally Posted by Forcedfed

We hope to make you very happy shortly!

That is my target for our entry N/A package.

Bring it on

Gridlock · 02-25-2005, 07:13 AM

Quote:

Originally Posted by Forcedfed

We hope to make you very happy shortly!

That is my target for our entry N/A package.

Forcefed,

What mods are you doing to achieve this?
Do you have an idea about what the kit will cost?
And of course, will it void the warrantee?

aletes · 02-25-2005, 08:03 AM

Quote:

Originally Posted by Gridlock

And of course, will it void the warrantee?

Bolt-on components will not void your warantee unless Lotus can prove that the modification was the cause of the failure.

http://www.ftc.gov/bcp/conline/pubs/...#Magnuson-Moss

_JD_ · 02-25-2005, 08:37 AM

Without opening the motor, all you can do is help the air get in and out more easily with header, sport cat, tuned exhaust, intake and maybe re-flash the ECU right?

BrettP · 02-25-2005, 09:15 AM

Quote:

Originally Posted by _JD_

Without opening the motor, all you can do is help the air get in and out more easily with header, sport cat, tuned exhaust, intake and maybe re-flash the ECU right?

We are working on a few N/A projects at this time including:

2ZZ Cams
Header
Intake
Cat Back
Ecu Piggy Back

So far in testing with just the piggy back ecu we have made 10whp and 9 foot pounds of torque over stock!

We are now in the process of testing our entry package which will include a header, intake, exhaust and ecu. We hope to get this up to 180whp or around 210 at the flywheel. This package will be very reasonably priced and will offer a great alternative to the guys wanting to keep the car N/A and not spend turbo package cash. I will update you guys with dyno results and pics soon.

Allan Gibbs · 02-25-2005, 09:15 AM

Well, until my warranty is close to expiring, I'd be happy with something that doesn't void my warranty.

After that, I think I'd go the supercharger route. When it gets really hot (Phoenix, AZ) turbos don't seem to work as well. I'm speaking from experiences with my brother's two VW Jettas. Very poor response.

BTW, anyone hear rumors of a Lotus factory turbo that won't void the warranty? I thought I read some murmuring about that a few week/months ago?

_JD_ · 02-25-2005, 09:38 AM

Allan- no talk of a turbo, but there was/is about a supercharger- see the thread about the Exige 240R.

shay2nak · 02-25-2005, 09:59 AM

Quote:

Originally Posted by Forcedfed

We are working on a few N/A projects at this time including:

2ZZ Cams
Header
Intake
Cat Back
Ecu Piggy Back

So far in testing with just the piggy back ecu we have made 10whp and 9 foot pounds of torque over stock!

We are now in the process of testing our entry package which will include a header, intake, exhaust and ecu. We hope to get this up to 180whp or around 210 at the flywheel. This package will be very reasonably priced and will offer a great alternative to the guys wanting to keep the car N/A and not spend turbo package cash. I will update you guys with dyno results and pics soon.

Are you guys going to have a larger throttle body and larger injectors also with the kit?

sleepless · 02-25-2005, 11:03 AM

Quote:

Originally Posted by Allan Gibbs

After that, I think I'd go the supercharger route. When it gets really hot (Phoenix, AZ) turbos don't seem to work as well. I'm speaking from experiences with my brother's two VW Jettas. Very poor response.

Superchargers and turbos have the same heat soak issues.

The key is to keep the intake temps down. That means a properly sized intercooler(s), and possibly water injection, and good heatshielding.

BrettP · 02-25-2005, 11:35 AM

Quote:

Originally Posted by sleepless

Superchargers and turbos have the same heat soak issues.

The key is to keep the intake temps down. That means a properly sized intercooler(s), and possibly water injection, and good heatshielding.

Correct. Supercharging a mid engined motor is usually a poor idea unless you have a very efficient intercooling system. The new 240R has an intercooler with the supercharger kit which is a must for forced induction.

Allan Gibbs · 02-25-2005, 11:43 AM

Based on the options list above, do turbo chargers general make top end power than super chargers?

Okay, I sort of answered my question:
http://auto.howstuffworks.com/question122.htm

http://auto.howstuffworks.com/turbo.htm

View Poll Results: What tuning option interests you the most and why?
Naturally Aspirated - 210 Peak Horsepower	34	30.63%
Stroker Kit - 230 Peak Horsepower	18	16.22%
Supercharger - 260+ Peak Horsepower	42	37.84%
Turbocharger - 280+ Peak Horsepower	27	24.32%
Multiple Choice Poll. Voters: 111. You may not vote on this poll

02-24-2005, 03:23 PM	#1 (permalink)
aletes Registered User Join Date: May 2004 Posts: 669	Naturally Aspirated, Stroked, Supercharged, or Turbo? Which tuning option interests you the most and why?

02-24-2005, 03:34 PM	#2 (permalink)
Gridlock What a Machine! Join Date: Nov 2004 Location: New Paltz, NY Posts: 377	Normally Aspirated I like the idea of keeping the engine normally aspirated. I think that turbos and superchargers change the character of the engine and car too much, and often takes away from throttle response. In fact, I think that a lighter flywheel would also be nice to enhance throttle response. A stroker kit might be nice, but I don't want to pull the engine apart. __________________ - Stew

02-24-2005, 04:31 PM	#3 (permalink)
Cisitalia Registered User Join Date: Oct 2004 Location: Charlotte, NC Posts: 362	I wish Lotus would have put the Subaru WRX or Sti engine in the Elise. Gobs of torque, low center of gravity and very reliable. I had a WRX and loved the engine. This would make the Elise a dream car. The problem with this is the AWD transmission and engine/transmission placement would not be condusive to fitting in the Elise. I like turbos better, if properly designed from the beginning. __________________ 2005 Lotus Elise, Magnetic Blue with blue leather, Touring, Hard Top, Starshield, SS brake lines, #635 (sold 9/8/05)

02-24-2005, 05:22 PM	#5 (permalink)
sleepless Elise Fanatic Join Date: Dec 2004 Location: Seattle Posts: 2,224	I'd be very happy with 210HP __________________ Pete 05 Lotus Elise \| 06 Porsche Boxster S \| 97 Porsche Turbo

02-24-2005, 05:12 PM	#4 (permalink)
charliex OSX Black hat Join Date: Feb 2005 Location: Las Vegas , NV Posts: 9,935	what no nitrous ?

02-25-2005, 02:30 AM	#7 (permalink)
NMRJock A smile a mile. Join Date: Oct 2003 Location: Grand Rapids, MI Posts: 3,567	I'm plenty happy to stay NA for the time being. It's a bit early to be opening up the motor and I need my warranty. __________________ Paul Parkanzky Magnetic Blue with Biscuit Touring, LSS, Starshield

02-25-2005, 02:31 AM	#8 (permalink)
aletes Registered User Join Date: May 2004 Posts: 669	I am interested in a supercharger because of the low RPM performance boost. I think the performance envelope can be increased substantially in the lower end of the power band without the need to increase grip or modify other drive train or suspension components. I think the high/peak RPM performance of the 2ZZ-GE nicely matches the grip and balance of an Elise with an LSS package. Last edited by aletes : 02-25-2005 at 02:42 AM.

02-25-2005, 08:37 AM	#13 (permalink)
_JD_ Registered User Join Date: Oct 2003 Location: SE of Georgia Posts: 2,435	Without opening the motor, all you can do is help the air get in and out more easily with header, sport cat, tuned exhaust, intake and maybe re-flash the ECU right? __________________ Join Club 111

02-25-2005, 09:15 AM	#15 (permalink)
Allan Gibbs Registered User Join Date: Aug 2003 Location: Glendale, CA (formerly Gilbert, AZ) Posts: 5,399	Well, until my warranty is close to expiring, I'd be happy with something that doesn't void my warranty. After that, I think I'd go the supercharger route. When it gets really hot (Phoenix, AZ) turbos don't seem to work as well. I'm speaking from experiences with my brother's two VW Jettas. Very poor response. BTW, anyone hear rumors of a Lotus factory turbo that won't void the warranty? I thought I read some murmuring about that a few week/months ago?

02-25-2005, 09:38 AM	#16 (permalink)
_JD_ Registered User Join Date: Oct 2003 Location: SE of Georgia Posts: 2,435	Allan- no talk of a turbo, but there was/is about a supercharger- see the thread about the Exige 240R. __________________ Join Club 111

02-25-2005, 11:43 AM	#20 (permalink)
Allan Gibbs Registered User Join Date: Aug 2003 Location: Glendale, CA (formerly Gilbert, AZ) Posts: 5,399	Based on the options list above, do turbo chargers general make top end power than super chargers? Okay, I sort of answered my question: http://auto.howstuffworks.com/question122.htm http://auto.howstuffworks.com/turbo.htm Last edited by Allan Gibbs : 02-25-2005 at 11:49 AM.

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