Messages

1

Swaps, Turbos, Buildups / Problem with Dbilas ITB

« on: May 26, 2010, 02:50:32 AM »

any luck with this?

While I was in Czech Republic my father was driving it on a circuit and destroyed the engine. Thers a whole in one piston and one piston hit the spark plug so we have to start again. I not sure what exactly happned and what was the cause of this. We have a spare m42 engine so probably we will change it completly

2

Swaps, Turbos, Buildups / How to get around 180HP?

« on: May 24, 2010, 09:06:16 AM »

Even 136hp, would be swift in that. Looks great! more pics?

From an online translator:

You can find more pics here

http://picasaweb.google.com/Longerr82/Project7#

http://picasaweb.google.com/Longerr82/Lotus7V20#

It is a "home made" replica of Caterham 7

3

Swaps, Turbos, Buildups / Problem with Dbilas ITB

« on: May 24, 2010, 09:01:27 AM »

I have just installed a Dbilas set up this weekend. Though only run for a short while the car appears to run well on the standard software and exibits no power loss down though not dyno proven.

I understand your concern for the plenum chamber as it does not "look" optimal when compared to the likes of an M3 however I intend to prove it is either good or bad via some CFD analysis and compare it to a optimised version which should bolt on. Will let you know how i go.

I'd like to see your analysis as well.

I know that users here have dbilas with no problems, but I just can't figure out what is the problem with mine, the itb is a quite simple construction and I have checked all parts, it should work fine. I have bouth it already installed with the engine so that why am not using parts from m50 or so.

I will try to turn it 90 degrees and will see if that had any effect.

4

Swaps, Turbos, Buildups / How to get around 180HP?

« on: May 23, 2010, 03:04:01 PM »

He can't do that :p
He own this, less weight is everything in those cars :

COmpliments for the build! First seven I see with M42!

250hp on a m42, start removing mods from this list. Cams need to be changed.
http://www.stalheimmotorsport.se/index.php?pid=0&id=137

Have you considered going low boost turbo? If engine is in good status 200hp at 7psi are EASY to get!
- you have a lot of space in that car
- you have "hand working"-welding skills
- I see you already done a plate like collector here http://lh4.ggpht.com/_p9Z5-5F8Qmg/SVI6awqCgOI/AAAAAAAABwc/HLkKVgwWnPg/s1024/DSCF1078.JPG
   that's half of a turbo manifold already done
I would turbo it low pressure, small turbo to achieve a great driveability in that light car. think about it.

Thanks very much for compliments, my father has built it, it took him more than a year to do it during the nights after work and weekends .

Thanks for the link but it's quite hard to translate it .

We are using it for racing on slaloms events and we want to stay in category under 2.000ccm so no turbo .

We want to run it on dyno next month so lets see. But we want improvements anyway

5

Swaps, Turbos, Buildups / How to get around 180HP?

« on: May 23, 2010, 08:26:04 AM »

I want to remain NA, I'm from Europe, what brand and type of cams would you recommend, I don't want anything too "much", is it needed with new cams to have a new chip and does the companies supply the cams with chips as well.

And if yes will it be functional with the Dbilas ITB that I have installed already?

6

Swaps, Turbos, Buildups / How to get around 180HP?

« on: May 23, 2010, 05:42:34 AM »

Hi, I have read some threads here already about gaining more HP but I was curiouse about asking how to get aproximately 180HP from this engine and what would be the estimated cost.

I got Dbilas ITB already (that is not working good at all) with a Dbilas chip. I don't want to buy camshafts and I got lighter flywheel already.

What other options and for what budget do I have?
Any tips for making the engine more reliable and durable.

http://picasaweb.google.com/Longerr82/Project7#

http://picasaweb.google.com/Longerr82/Lotus7V20#

7

Swaps, Turbos, Buildups / Problem with Dbilas ITB

« on: May 22, 2010, 04:16:20 AM »

Hi, guys, am working on Lotus 7 project with m42 engine. Last year I was using engine from 318ti and it worked pretty well but than I have destoyed it, this year I'm using engine from 318is with Dbilas ITB and a lighter fly wheel, the problem I have with this engine is that it runs much worse than the stock engine from 318ti, above 5.800rpm it goes very good but untill that its worse than stock. My idea is that the desing of the "air box" of dbilas itb is not good. Otherwise I really dont know where can be the problem. Any suggestions? It would help me a lot, thx

http://picasaweb.google.com/Longerr82/Lotus7V20#5465121528593512146

8

Swaps, Turbos, Buildups / Problem with Dbilas ITB

« on: May 21, 2010, 11:03:05 AM »

Hi, guys, am working on Lotus 7 project with m42 engine. Last year I was using engine from 318ti and it worked pretty well but than I have destoyed it, this year I'm using engine from 318is with Dbilas ITB and a lighter fly wheel, the problem I have with this engine is that it runs much worse than the stock engine from 318ti, above 5.800rpm it goes very good but untill that its worse than stock. My idea is that the desing of the "air box" of dbilas itb is not good. Otherwise I really dont know where can be the problem. Any suggestions? It would help me a lot, thx

http://picasaweb.google.com/Longerr82/Lotus7V20#5465121528593512146