BHP for a tuned 998.
Started by
Bam
, Apr 08 2006 06:52 PM
11 replies to this topic
#1
Posted 08 April 2006 - 06:52 PM
I want to tune my 998 and i was wondering what a realistic BHP aim is this is what im am going to do:
12g940 head
flat top pistons
strengthened con rods
port and polish cylinder head
balanced crank shaft
double valve springs
1:3:1 roller rockers
lightened fly wheel
peformance diff pin
straght cut gears
cebtral oil pick up
sports coil
weber 45 dcoe
all new bearings
polished valves
4 balde fan
12g940 head
flat top pistons
strengthened con rods
port and polish cylinder head
balanced crank shaft
double valve springs
1:3:1 roller rockers
lightened fly wheel
peformance diff pin
straght cut gears
cebtral oil pick up
sports coil
weber 45 dcoe
all new bearings
polished valves
4 balde fan
#2
Posted 08 April 2006 - 06:58 PM
Weber 45 on a 998??
Also no mention of cam, are you using a standard cam? Do you really need "strenghened" con rods on a lightly tuned 998?
I would say about 50bhp..
Also no mention of cam, are you using a standard cam? Do you really need "strenghened" con rods on a lightly tuned 998?
I would say about 50bhp..
#3
Posted 08 April 2006 - 07:06 PM
i for got about the cam, i want a road/rally cam form mini sport and a cooper S clutch plate.
you can get the weber jetted for a 998, do you thnk that twin 11/4" SU's would be better, in the mini peformance manuel it says that you can put a weber 45 on a 998.
you can get the weber jetted for a 998, do you thnk that twin 11/4" SU's would be better, in the mini peformance manuel it says that you can put a weber 45 on a 998.
#4
Posted 08 April 2006 - 07:07 PM
I'm building a fast road 998 at the moment.
12g940 MG head
Bocket the block
Kent 266 cam
SU HIF 44.
Stage 1 kit.
I've just read the "All in the head" question in this months workshop Q+A in miniworld.They think that if this sort of set up, is set up well,it should be between 65-70bhp.I was amazed with that.
12g940 MG head
Bocket the block
Kent 266 cam
SU HIF 44.
Stage 1 kit.
I've just read the "All in the head" question in this months workshop Q+A in miniworld.They think that if this sort of set up, is set up well,it should be between 65-70bhp.I was amazed with that.
#5
Posted 08 April 2006 - 07:34 PM
at least 70 bhp i reckon mainly because of using the 1275 head. will make a massive difference.
#6
Posted 08 April 2006 - 07:49 PM
The reason that i am doing all of this to a 998 i because i have a spare 998 engine, what sort of diffrence will doing all of this to a 1275, and what will the 0-60 speed be?
#7
Posted 08 April 2006 - 08:03 PM
And duplex timing gears NGK plugs.
#8
Posted 08 April 2006 - 08:58 PM
my mini was standard with a maniflow stage 1, got 45bhp at the fly (55 at wheels) after a rolling road session
something to compare it with
something to compare it with
#9
Posted 08 April 2006 - 09:18 PM
my mini was standard with a maniflow stage 1, got 45bhp at the fly (55 at wheels) after a rolling road session
pooky i want you gear box
most boxes lose power yours makes it
#10
Posted 08 April 2006 - 09:31 PM
secret ingredient
#11
Posted 08 April 2006 - 10:54 PM
my mini was standard with a maniflow stage 1, got 45bhp at the fly (55 at wheels) after a rolling road session
pooky i want you gear box
most boxes lose power yours makes it
Bungle, I swap you one just like his for your JK 5 speed!
#12
Posted 09 April 2006 - 11:30 AM
Rob3 has a tuned 998:
+0.40 to 1040cc
modified 12G295 head
twin 1.25" SU's
Morspeed phase 2 cam
10.5:1 CR
roughly 3.6:1 FD
Freeflow manifold with 1.75" system
Fully set-up by AC Dodd
other stuff I can't remember
63 bhp and very flat torque curve - lovely engine to drive.
+0.40 to 1040cc
modified 12G295 head
twin 1.25" SU's
Morspeed phase 2 cam
10.5:1 CR
roughly 3.6:1 FD
Freeflow manifold with 1.75" system
Fully set-up by AC Dodd
other stuff I can't remember
63 bhp and very flat torque curve - lovely engine to drive.
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