advice on building myself a 90-100bhp n/a motor
Turbo Mini Forums

Hi all, i just wanted some advice on building my new engine, as i'm only 18 forced induction isn't really an option so i'm going down the n/a route for now,

i just wanted some advice on the best way to get the engine i want, first of all is the budget, i don't really want to spend any more than 2k this is for the engine w/out gearbox and fueling, my aim is hopefully around 90-100bhp eventually,

i was just unsure whether i should go along the lines of getting a short engine kit from med or, doing more of the work myself like getting a donor engine and stripping it down and getting the work done locally then doing all the assembly myself?

anyone have any advice on what would be better considering my budget?

cheers, george.

:)

i can't see how a std metro turbo engine 90-100hp would cost any more to insure at 18 than an equivalent n/a engine that will need a lot more mods declaring?

im with nick i got a 400 quid reduction going from a 'stage 4' 998 to "std" metro turbo engine and at ~50% power gain rated ( thats how they calculated it 44-94bhp) i turned 19 3 days into the policy 2y/ncb

Yes i moved to the darkside

Instagram @jdm_brett

Fi doesnt alwasy mean heavy insurance. my 150bhp scirocco is more to insure than my 150+ bhp turbo mini

btw im 20 with 1years ncb

you could find 1380 or something 2nd hand forsale and have it rebuilt

oh thats really good to know guys, i really thought it would be mega money trying to insure a turbo mini, with this in mind then im very seriously thinking about it, does anyone have a metty turbo motor they could sell me?

also if i can get an engine i'll still do some work, maybe a rebore and new pistons, centre main strap new bearings and all that, also really like the look of those mirage manifolds.

I would actually phone up and get a couple of quotes before you start

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

It didn't do much to my insurance at 20 for an engine quoted at 85bhp.

If you wan't a cheapish quick engine my last one was a 1275 because I had a set of good pistons that would have been a shame to waste. I'd be tempted to go to 1360 or 1380 using the hypatec pistons.

Then

Fully sorted head
285 scatter cam
ultralight flywheel
megajolt
comp ratio of 10.5:1
weber 45.
1.5:1 rockers

It was a really nice engine, and was used daily for 2 years. Its now been ripped out though for an all out 1380 its not the daily drive.

Edit: Build it yourself, I did at 19. Also too much time spent on here will result in the desire for a mega powerful engine that will require regular rebuilds, so you may as well learn early!

Edited by minimole23 on 31st May, 2010.

Just so you know I have 95bhp with the following NA engine:

1293cc
Stage 4 head
Weber 45
1.5:1 rollertip rockers
SW10 cam and duplex chain
Electronic fuel pump

Just about to come off the road for a gearbox fix and quite possibly finally attach my Megajolt. :)

http://www.jolyonway.com

thanks guys, i was originally thinking a 1293 or 1380 with high comp ratio, stage 4 head, centre main, some crank work, ultra light flywheel, sc drops, sw10 and vernier duplex, and a weber 45.

atm i'm going for a nice high reving 1293 n/a engine but i can't make my mind up now people have said turbo is possible!

Edited by george91 on 31st May, 2010.

I'm extremely happy with mine at the minute, but as its coming off the road for a bit I may swap some bits around.
Saying that, I do eventually want to go with a K head turbo when I can afford it...

http://www.jolyonway.com

if your planning on using it everyday, id seriously consider not using a weber, and go for a hif44 1.75" webers will give more top end power but less low down, 2 of my friends went from a hif44 to a weber and now want to go back to a su!

Dave the Cake

I've got a 45 DCOE at the moment, and it's a pain!

It rarely runs right unless it's flat out!

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.

Edited by minimole23 on 31st May, 2010.

Why would an SU be a pain ? Carbs don't come much simpler.

WWW.TURBO-MINI.COM

Webers can be set up for driveabilty, but at the loss of top end power... which kinda defeats part of the point of a weber.

Webers tend to be a bit more juicy on fuel too.

However webers do sound beasty!

Dave the Cake

I love my weber

but as has been said, it goes through petrol like god knows what!

http://www.jolyonway.com

I would opt for twin HS4's, best of both worlds

I cannot understand all this about Webers consuming more fuel. If it's been set up correctly why should it use more fuel than an SU? It's the engine that consume petrol, not the carb.

I think it's because you normally bolt a DCOE to heavily modified engines. They use more fuel.

Ahh thats a good point. :/
Thanks for the correction

http://www.jolyonway.com

In boost we trust