API 2.1 Forged engines
 

Looking at getting a forged 2.1 Stroker built for my WRX and seen a few companies API, Engine tuner and so on..
Now I really need to do my homework on this before I hand over my hard earned!!!

Looking to get a figure of around 450-500..TBh 450bhp would be loads for a couple of track days and a road car with supporting mods.

Who's had 2.1's built by them and what is the service like and build, problems, what kind of setup are you running CDB? Semi? What is the best to use? what Pistons,Rods,Bearings etc are you using?

Obviously I will be contacting them to get a proper quote as every ones needs are different but would be good to have a bit more knowledge on it.

Thanks guys!

All of the names you have mentioned will do a good job by all accounts. I can only vouch for ET. Had my stroker done just over a year ago and have been extremely satisfied with the build, the end results and the aftercare service. The final spec will be personal choice. I personally went for an over engineered cdb, with a final output in the 425 region, with focus on driveability and future proofing. I would shortlist and then visit and see what works for you.

Well, fwiw you're probably going to get 3 or 4 names mentioned.

A 2.1 - like any other engine - isn't anything without the technology to support it.

You mention 450+ - you need a turbo that can enable that.
Obviously forged internals.

And no doubt once you've started you'll want to progress.
So future-proofing is a good idea, such as SCDB.

Are you prepared to travel if needs be?
(Some of the names that will come up are a long way away from your location).

To give an idea of what people will (rightly) suggest:

* Enginetuner (Plymouth);
* API (Harbury);
* Advanced Automotive (Bristol)
* Richard Henry Motorsport
* RaceDynamix


I'm not an in-depth enthusiast, but these are ones I've picked up on from threads, and there's definitely loads more.

Tbh asking a question such as this is probably going to lead to information overload.

So, over to the floor..........................

Hi there

Our previous 2.1L has been build by Neil@Slowboy racing and as our 2.35L is build by Neil@Slowboy racing

I can only vouch for Neil@ Slowboy racing work and really as I before suggest speak with Neil about the best options

For yours target I would go with yours existing block,OBD block is strong enough and will be good up to 550bhp

We run 2.1L OBDat 490bhpplus 25bhp NOS shot and Neil said,engine should be OK up to 500-550bhp,above that better headstuds will be needed at least

Pistons again this will depends on yours budget,but Mahle pistons are mostly used,if its budget then CP pistons,JE pistons etc(if you want top one,then RCM will be best bet),rods again for budget build and for 550bhp any good H beam rod should be enough(I would saty away from Eagle H beam rods),Manley rods are mostly used,but if its budget K1 rods and if you want top then Carrillo,RCM, Cosworth are probably best.
Bearings ACL racing are mostly used and they're proven on several builds

What I would suggest use Cosworth headgasket and keep away from Cometic headgaskets,plus I would suggest add 11mm ARP headstuds(if its budget then Cosworth 11mm 260k psi headstuds is great option too,RCM 12/11mm are nice too headstuds)


Jura

What's your current spec? a car with those figures could take some getting used to if you're running a fairly standard setup at the moment.

You'll also need to budget for a better gearbox and clutch aswell.

Oh and brakes..... ;)

also try andy williams at williams motorsport just had my 2.5cdb build done by him at a really competetive price forged and cdb with rcm 14mm studs etc

Iv had a engine tuner 2.1 CDB running 450+ for about 3-4 years now and done loads of track days and really hard driving and its still holding together fine

Advanced automotive are very good also but I havnt had one of there engines yet but they will be building my replacment when my 2.1 does give up

I think you need to do a little bit more searching yourself mate.cos I don't think there will be many that will be giving pennine Subaru a good name for enginebuilding.you can deffinatly cross that name off the list.

My 2.5 built by Andy Williams is still going strong and if funds ever allow will be going back to him to be closed!

Api is not in Norwich

yep was going semi but bit the bullet and went cdb
http://i1272.photobucket.com/albums/...psf2c877aa.jpg

Api are in Harbury....

Can I ask why the move from ET to them if your happy with the current engine ?

I would go with scoobyclinic.they seen to get missed when there's threads in here which I find strange.engunetuner also have a great reputation.

don't forget Paul Finch. Ex Mclaren guy. recommended:thumb:

How much money does this type of build cost??

A lot

What we talking £5k-£10k?

probably 10k+ with supporting mods

Tidy lol.

Slowboy racing is also highly rated and also the nearest to you:)

Oh also speak to Richard at FB tuning, another highly recommended engine builder.

I'd second this, Paul is one of the best & always available for help & advice.

Verious reasons and none being anything wrong with ET, advanced Automotives sponsors my forum , there based less than 5 mins away from where I live,, seen lot lots of there work (up close) and it speaks for its self ,, and I never knew of them when I went to ET

Thanks for the Info guys. Already have 8 pot brakes and upgraded suspention..
Upgrading to a 6 speed i am aware off and planto use a SC42 turbo or Sc46 with supporting mods.. currently running a VF34 at the moment running 320ish

Engine tuner has also comeup alot i see so will give them a call. Distance is not a problem for me as long as a good job get done. I see that an CDB is best to use as well?!

Sorry if that's the case.
I did read a complimentary post re them not long ago.

I'll try to find it.

Obviously though if anyone's had a bad experience I'll chop it.

Cheers.

Thanks (could only find a ref. to an API in Norwich but didn't want to leave them off the list, so asked the question).

:thumb:

Who is Paul Finch guys??