Icurus

Finally fitted the Emerald and bike bodies and made it to HT Racing at Brands Hatch for Aron to do his stuff

RS2000 16v FWD

Engine spec:

Stock 2.0L bottom end
Std head
De-cat
Kent RS2001 cams
APS removed
Suzuki GSXR 750 throttle bodies
Emerald K3 ECU

After Aron and Steve overhauled the throttle linkage and made it work as it should the result was:

177.8 BHP @flywheel @6916
154.6 LB/FT @ Flywheel @5520

Im happy to say she flies and I am well pleased

lloydmotorsport

iTrader: (1)

well done,glad you are pleased with it.

NUNOOKS

cool, aron built my yb engine, when i lived in the uk, not much of a talker but is he.

Icurus

Indeed, Aron was a bit quite but he certainly knows his stuff

Minirotty

Well done mate.

BRIGSPORT

iTrader: (2)

Nice one pal, hoping for a similar figure for mine on megajolt and bike carbs, be interesting to see if theres a difference on mine in a rwd car using the galaxy exhaust manifold.
What did you do inlet manifold wise? I'm going to be using the inner part of the standard efi inlet manifold with some stubs welded on. What length inlet runners have you ended up with, and did you space the bodies to suit the inlet ports?
Sorry for all the questions.

AlexF

I've been banging on about the inlet being the restriction for years hehehe

Glad its worked well

foreigneRS

glad you're happy with it, but 178 bhp from 2 litres is not earth shattering is it? rather than piss about with that lot i would have just bought a civic type-r engine (or even better, whole car)

Icurus

er, your missing the point, as with a type R engine it would no longer be an RS, imho

I did not say this was the be all and end all of 2.0l engines!! Just posting my results from that spec ffs

178 from a low revving, lowish compression engine is not bad?

An 8 valve Pinto would need to scream its nuts of to get to that level?

Mine tops out at 7k and has 10.3:1 compression, so can use normal 95RON fuel.

Now I could run a wilder cam, maybe a 285 profile or higher, increase the rev range to, say 8500k, with a matching cam of course, and up the compression to 11+ and get an easy 200, but I chose to stay fairly mild.

I do have a 2.3 sitting in my garage atm, and that I hoping will make 220+

cossie350

Does seem a bit low, i fitted a set of hyabusa (spelling) bodies to a 306 S16 engine (2.0 16v) totally standard running on an emerald and it made 192 bhp, also the engine had seen about 300 laps of Cadwell park so was perhaps a bit on the tired side. Are you sure your getting full throttle or not going past it so the butterflys block the air flow as this is quite a common mistake with bike bodies.

Bet it still sounds cool though .

pee vee

so it gained over 40 bhp from just fitting TBs ?

cossie350

Yes mate, Dave at Emerald said it was one of the better cars with bike bodies that he had mapped as most have "some sort of issue".

kellyalfie

aron no his stuff done my s1 head and the the cossie he is a bit quiet but he gets results

Icurus

Aron did have to sort out the throttle linkage, so I dont think it over opened, but I'll check that!

The head is stock, but I believe the std exhaust, although quite good for a production item, is restricting the flow at higher revs.

The sound is great, and worth the effort for that alone

BRIGSPORT

iTrader: (2)

Any answers to my questions above please mate?

costina

iTrader: (1)

but he has a little more torque tho

I'd bung a 2.3 galaxy bottom end in it next

Paul

Icurus

HI Brigport, sorry I seem to have missed your post!

Our club forum had 10 custom inlet manifolds made. These spaced the bodies to match the RS's head, so I had to space the bodies out, which was a right pain tbh and contributed to the problems I had at the mapping session!

If we had left them spaced as normal we could have used the bikes injectors and fuel rail if I chose to go for an 8 injector setup as some point.

Also there are no off the shelf bell mouths/ram pipes for the bike bodies, and I had to buy a blank Pipercross dual bodies filter backplate and cut out the holes to suit the bodies, and fabricate a throttle bracket!

I have retained the original inlet manifold and fuel rail, which has added to the overall width of the inlet system and resulted in me having a smaller filter then I really wanted

I've not measured the manifold, but I'd guess its about 3 inches deep. Again had we been able to use the bikes injectors or injetors locations, we could have had the manifold made to mate straight to the head and had more room to play with, but the way we had it made was more straight forward, or so we thought at the time!!

Going the Jenvey route or modified DCOE's would have been much easier but more costly!

I'll try and get some pics.....

Icurus

Cheers Alex!

Cheers Kev!

Icurus

Icurus

Oh, another point to note is that this engine design is at least 18 years old!

BRIGSPORT

iTrader: (2)

Thanks for that pal, i will see how i get on with my setup and post the results.