Mazda Rotary Club

General => General Technical => Topic started by: L12A GN on October 04, 2006, 04:11:15 PM

Title: dyno on sat wot will i get????
Post by: L12A GN on October 04, 2006, 04:11:15 PM
right my rx7 will be going for a power run on sat lets see if anyone can guess the correct bhp............

1993 mazda rx7 efini
53k
had its rebuild at 47k
apexi N1 cat back
apexi intakes
blitz bov

wot should i expect?
Title: dyno on sat wot will i get????
Post by: John Yorke on October 04, 2006, 04:13:21 PM
How about 265fwhp? if the rebuild is good you might see a bit more:wiggle
Title: dyno on sat wot will i get????
Post by: grinder on October 04, 2006, 04:24:04 PM
i would expect about 260 ish - they are about 255 as stock

the intakes might get you a few bhp ??
Title: dyno on sat wot will i get????
Post by: sadgoth on October 04, 2006, 04:29:41 PM
ok so what do we win if we hit the exact figure? ;)

I\'ll start with 258fwhp
Title: dyno on sat wot will i get????
Post by: L12A GN on October 04, 2006, 04:29:45 PM
are they 255bhp @ wheels stock?
Title: dyno on sat wot will i get????
Post by: Frankie on October 04, 2006, 04:35:56 PM
No that\'s the flywheel figure for early cars.

And i estimate 265 bhp...
Title: dyno on sat wot will i get????
Post by: nikp on October 04, 2006, 04:40:37 PM
Should see standard ish power figures, as everyone else says. 255-265 if everything is in order.
Title: dyno on sat wot will i get????
Post by: rmagictastic on October 04, 2006, 04:48:34 PM
no, you will see 263.5 at the wheels.

Rmaj
Title: dyno on sat wot will i get????
Post by: gsb876 on October 04, 2006, 05:37:52 PM
I say 268.7 @ wheels :Laugh
Title: dyno on sat wot will i get????
Post by: shaunwil on October 04, 2006, 06:07:21 PM
Im saying 264.8 :p

Shaun
Title: dyno on sat wot will i get????
Post by: ScuttleRX on October 04, 2006, 06:12:21 PM
I\'ll go 221 @ the wheels:bandit
Title: dyno on sat wot will i get????
Post by: peterwolds on October 04, 2006, 08:05:20 PM
231.5 ATRW (approx :wiggle )
Title: dyno on sat wot will i get????
Post by: mikeyh on October 04, 2006, 08:37:17 PM
where  you going lisa?
Title: dyno on sat wot will i get????
Post by: L12A GN on October 04, 2006, 10:24:07 PM
dastek its my local cruises dyno day on sat afternoon pop along if you can make it we can have a gab
Title: dyno on sat wot will i get????
Post by: Rixio on October 04, 2006, 10:42:21 PM
228-230rwhp :)
Title: dyno on sat wot will i get????
Post by: L12A GN on October 04, 2006, 10:47:49 PM
is this the math for whp > bhp?

whp x 1.4?
Title: dyno on sat wot will i get????
Post by: ScuttleRX on October 05, 2006, 04:04:30 AM
Think general figure used is an 18% transmission loss, so I normally divide whp by 0.82 to get a rough bhp figure
Title: dyno on sat wot will i get????
Post by: rmagictastic on October 05, 2006, 08:40:38 AM
sorry, just a power run!!!

oh right gunna change my mind then, 246.8 ATW
Title: dyno on sat wot will i get????
Post by: Jono FD3 on October 05, 2006, 09:47:02 AM
I\'ve got similar spec and I hit 265 at the fly last november with the clutch showing slight slippage at 5k!!

Jono
Title: dyno on sat wot will i get????
Post by: L12A GN on October 08, 2006, 12:38:42 AM
made 242hp running very rich ! suppose better than running very lean eh

good base figure for me to biuld on i think so now the mods come lol
mapper said engine seem very healthy could so with those cats out tho he said another 30-50hp with a remap ect

so all good
Title: dyno on sat wot will i get????
Post by: L12A GN on October 08, 2006, 12:39:31 AM
220 @ wheels
242 @ fly
Title: dyno on sat wot will i get????
Post by: Grizzly on October 08, 2006, 12:52:32 AM
You should be looing to invest in a Power FC :yes
Title: dyno on sat wot will i get????
Post by: L12A GN on October 08, 2006, 09:32:46 AM
saving for that the now its on the list with ...

walbro 255
de cat pipe
dp
and turn boost up a tad
Title: dyno on sat wot will i get????
Post by: G@NDY on October 08, 2006, 09:36:40 AM
Ive got a walbro if your interested;)
Email rutpcc@hotmail.com :cheers
Title: dyno on sat wot will i get????
Post by: L12A GN on October 08, 2006, 05:58:00 PM
new? used?

pics? price?
Title: dyno on sat wot will i get????
Post by: L12A GN on October 09, 2006, 12:43:21 AM
the graphs .....

(http://i6.photobucket.com/albums/y222/gregor_1/dynosheet1.jpg)
(http://i6.photobucket.com/albums/y222/gregor_1/dynosheet2.jpg)
Title: dyno on sat wot will i get????
Post by: Jit on October 09, 2006, 01:11:46 PM
the stock ecu does run slightly rich....but with those mods you should have been seeing pretty decent afrs...the dastek dyno do give pretty low readouts though...
Title: dyno on sat wot will i get????
Post by: grinder on October 09, 2006, 01:35:05 PM
i always thought they did the runs in 4th gear - so a near 1:1 ratio ???
Title: dyno on sat wot will i get????
Post by: Eeza on November 22, 2006, 12:03:45 PM
Lisa

What have you been doing to that Car ha ha,  Glad to see you are enjoying it...

Eric