As my RR session was abandoned and my ecu has gone back to Phil for inspection, I thought for fun I'd ask to see some plots from everybody elses sessions.

Firstly - I've done a search and can't see anything like this before, and secondly, before anybody says so BHP figures shouldn't be compared across different RRs

So - please can people who have them post their RR plots including engine info: Type, Induction, Igntition & Cam.

Thanks all.

Greg

OK I'll start.

Toyota 4AGE Silvertop 20V.
Flowed head (mostly exhaust as 3 inlets flow plenty).
CAT exhaust cam only again to promote exhaust flow. Only adds 10 deg duration and 1mm lift nothing wild.
C30-94 Rotrex supercharger fitted and producing up to 1 bar boost at redline.
This dyno plot was taken on a standard bottom end inlcuding the cast 10.5:1 CR pistons.
I've since fitted 8.9:1 forged pistons for reliability but haven't as yet increased the limiter and hence boost
The plot compares the same engine on the same day but initially mapped NA then mapped with forced induction.
The Rotrex looks a bit peaky in the way power builds but on the road the acceleration is very linear (but not boring!). I could play with inlet restrictions to limit top end and promote mid-range but to be honest its a nice compromise in a light car with limited traction.


Rotrex v NA 20V

[Edited on 15-4-09 by bimbleuk]

bump

Oh, all right... from hi tech Toyota to Pinto.

Its a 2.1 with a Burton stage 2 head, (larger inlet valves) Piper F2 stockcar type camshaft, twin weber 45s with 36mm chokes, standard Sierra contactless dizzy and module, Balanced bottom end.

Oh go on then.....

2ltr Ferriday block CVH
Ported head
Solid lifters and CVH27 cam, double springs
Tri angle valve seats
Rasied CR to 10.3
GSXR600 TB's Megasquirted

All sat in a Westfield

1600 zetec se

busa throttle bodies, jwrc spec head,
ss4 shawspeed cams, standard bottom end apart from rod bolts