Author Topic: How to get around 180HP? (Read 13559 times)

Longerr · « **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#

fabe · « **Reply #1 on:** May 23, 2010, 07:49:37 AM »

Assuming that u want to remain NA, u won't get many horses with the stock cams...

Read more of the 'I want more power" threads first and u'll know better what to ask instead of a general 'how to get more power' question...

Longerr · « **Reply #2 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?

Romrog318is · « **Reply #3 on:** May 23, 2010, 10:12:42 AM »

welllll if you want to remain NA just do what i did

nuvolarossa · « **Reply #4 on:** May 23, 2010, 11:17:44 AM »

Quote from: Romrog318is;92809

welllll if you want to remain NA just do what i did

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.

Romrog318is · « **Reply #5 on:** May 23, 2010, 01:26:48 PM »

^^^ LOL
btw wat is that motor in? haha
and plus if he owns that it looks like it has a good amount of work done maybe he needs it dynoed?

hell u can fit an M52 in there

210 tq and 197 HP stock mines OBDI swapped with other goodies

lol

Longerr · « **Reply #6 on:** May 23, 2010, 03:04:01 PM »

Quote from: nuvolarossa;92815

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

dsm2002 · « **Reply #7 on:** May 23, 2010, 06:21:32 PM »

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

From an online translator:

Quote

Engine: Newly built only run one delt�vl BMW Cup (for the engine, the car gone two seasons)
M44 = 4 cylinder 2000cc 16v in-line engine around.

Bottom section, drilled to 86mm M44
Crankshaft; original type 83.5 mm balanced.
Candlesticks; Forging Eaglee balanced and weighted.
Pistons, Wiseco, custom 86mm suitable for accompaniment
Flywheel; relaxed and balanced together with a link from a turbodiesel.
Super, Super Ex-top touring, made from "grottis" in S-holm. Cons Again Total Rooms
and then admitted after the rule book, larger valves.
Extracts manifolds, separate damper, carbon fiber plenary, MBE 912 spray mapped and braked by Jaktlund Power. Efekt about 240 hp at 8350 rpm 8500 rpm lap top.

Gearbox:
Getrag 5 speed with 1 / 1 on 5an. Model M3 E36

Rear axle:
Original 4.10 male, diff plate by about 40% locking effect

Ryann · « **Reply #8 on:** May 23, 2010, 06:45:43 PM »

Quote from: Romrog318is;92819

^^^ LOL
btw wat is that motor in? haha
and plus if he owns that it looks like it has a good amount of work done maybe he needs it dynoed?

hell u can fit an M52 in there 210 tq and 197 HP stock mines OBDI swapped with other goodies lol

Looks like a Caterham Super 7 to me.

Longerr · « **Reply #9 on:** May 24, 2010, 09:06:16 AM »

Quote from: dsm2002;92832

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

douby · « **Reply #10 on:** May 24, 2010, 11:24:23 AM »

mas to nadherny, super projekt a M42 motor je vybornej zaklad

kenika65 · « **Reply #11 on:** May 24, 2010, 04:27:55 PM »

http://www.r3vlimited.com/tech/318is/318is.htm

Try this^

Adjust the cam timing - You know how on the E30 M3 you have to buy a $300 kit with adjustable cam sprockets to tune your cam timing? Not on the 318iS! The M42 is equipped with tunable cam sprockets from the factory. So pull your Cosmoline covered valve cover off and with the proper tools you can tweak your intake and exhaust cams up to 6 degrees +/- to provide more top end horsepower or more low end torque. See, you don’t have to blow a grand on a set of Schrick cams to make your M42’s cams a little hotter. The best setup is to adjust the intake cam to 5 degrees (advanced) and leave the exhaust cam alone. I would recommend having a shop do this work.

fabe · « **Reply #12 on:** May 25, 2010, 12:16:04 AM »

This is the first M42 in a Seven which I know, maybe there are more...

To get significant power jump in a NA engine, it needs high rev... (see how the Honda VTEC does it).
- stiffer valve spring sets
- solid lifter
- high cams (Catcams seem to be good for M42, and they also have solid lifters and springs for the cams)
- high compression pistons (prefereably forged and low weight)
- strengthen and light weight con-rods.
- lightened and balanced crankshaft.
- 360 degrees thrust bearings

The list can be very very long... :p but NA power gains will not be cheap to start with..

I have a dismantle M42 in my storage, so am also thinking what to do with it...
My plan is to bore out the 84mm to 86mm while retaining the 81mm stroke... That'll brings the displacement up from 1796cc to 1883cc...
increase the CR to 11:0
valvetrain and cams are in my wishlist but needs to get the moolahs first..

Have fun modding and do keep us updated on the progress....

BTW, I've seen a photo of a lotus Elise with the M42... Anyone knows more about this other car?