Thread: max hp out of 202
27-07-2008, 11:49 PM #1
- Join Date
- Mar 2008
max hp out of 202
hey guys was thinkin today about how much hp a 202 could develop and thought id ask the question.
so how much has been producted out of a 202???
na of course...
28-07-2008, 08:41 AM #2
I did an LJ 202 in the 80's
went drag racing with it
it made 220rwhp @ 6800
the Group NC Torana racers these days
are making 330-350 flywheel hp ..maybe a tad more
on pump fuel... based on the dyno charts I have seen
28-07-2008, 10:04 PM #3
it all depend swhat u do to it mate.
a mate of monie had a VK black 202, originally EFI, but converted back to carby... had .080" (or something huge liek that) oversized pistons, massive cam, jetted 350 holley, strocked out to a 213ci, huge compression... NA it was ment to run mid 13's.... it was a very grumpy motor. i believe it was built by the TRAPNELL boys up here in brissie
he ended up wacking on a SC14 blowerr and killed the engine
28-07-2008, 11:31 PM #4
What is it for supercharged ?
29-07-2008, 12:15 AM #5
who would've thought , all that from a old holden six, must be near breaking point at that power level.
Last edited by 3554me; 29-07-2008 at 12:16 AM. Reason: dum
29-07-2008, 05:55 PM #6
in my search for a tuff 202 i found this
check out this for a cross breed
1. to get 245 using a holden crank. you need to offset grind the
crank 350 thou. While this does take a considerable about of meat
off the crank it is fine and i never had a problem with my motor or
my mates that I built. Then again my motor only ran for 6 months
until an unfortunate accident (which i do not wish to rehash... I am
2. The bore is taken out 40thou. This give you a total of 3.665
oversized pistons. And with a stroke now of 3.950 you have a total
swept volume of 250ci. I ured on the side of safety and did not off
set grind fully but incurred more cost for my rods and pistons as I
got them custom built. the stroke in mine ended up having a 325 thou
offset making calculated swept volume to be 246ci.
3. The cam was a special build and designed it for a full house
torque motor. whilest I never got the car on the dyno the projected
torque was 390 lbs/ft with 320 HP at the flywheel. I am not willing
to explain the cam profile as there is a bucket load of work
involved here and would like this to remain mine on that one.
4. The head that was run was off a EA Falcon. I did not do the
engineering with this bit but from memory it was bolted on backwards
and a hell of a lot of work went into placing the head on the red
motor.(well for me it was a blue block. I can tell you I am not
sure I would use this again. a Blue or Black head would work just
as well. and is hellishly easier to build.
5. The intake was standard issue Fraud, with some custom work and
mega engineering. The extractor needed to be custom built as
nothing would fit the right way as the pipe fac the wrong way
6. The EFI setup I ran was a factory holden one and had major work
done to get it setup properly. Really you would need a dyno but
seeing I needed to run the motor in I felt that the dyno would come
after this. It was a real headache but if I was doing it again I
would be having plenty of dyno time.
7. My bottom end was weird and I am not sure you can even still get
them but i did not use shell bearings for either the main journels
or the big ends. these where a cage roller style bearing and I
could not explain to you the BIG difference these made.
8. I needed to mod the clutch setup to clear the intake but it was
doen so that I could still service the master. As you would expect
the EH is not exactly huge in area of the engine bay.
9. The crank got doweled so that the flywheel would not cause me to
loose my feet. We also contracted a machinest to machine the
flywheel (CNC'ed) to reduce the overall weight of the unit. This
assisted the car to rev more but also use the extra torque as
previous. The diff I ran was a 3.45 BW unit from a VL.
10. This combination was a real sleeper. from teh outside you
could not tell that there was an animal below. The other thing was
it idled so smoothly. The exhuast note was definately not the
standard holden 6 nor was it fraud noted. It is actually hard to
describe. Was a little airy with a hint of bark...
Yes this was a street motor. Yes i did alot of machining on this.
Some of the work was done by my mate as we built both of these
motors. Seening the amount of time that has surpassed on the build
I am not sure of some of the exacts but do have a file on it in my
cabinate. I am looking to build another motor of the same
existance. However, this will be a long way off yet. Particulars i
do remember is that I did run a Holden head gasket. I milled all
Fraud logos off the rocker cover and I also polished and linished
everything i could. Many whom saw the car asked what the hell motor
I had. I also cast a new block number so that my block read 245 on
teh side where 202 was. That confused many people. I had to prove
via the engine number a number of times that it was a Blue commodore
block. The head was a little hard to help people explain. Hehe.
there is much you can do to the humble holden six.
In relation to the block splitting, there really is nothign you can
do. The girdle will assist to a greater extent but if the block is
going to split then it will split. One thing we all will agree on is
the fact that old surge is a huge issue for Early holdens. My
suggestion here is a baffled and windaged tray oil pans and
polishing the oil galaries so that the returns quickly. I know it
is a heap of thoughts and lots of engineering, But if planed
correctly then all will be good. Any questions just ask...
29-07-2008, 06:55 PM #7
LSD is a wonderfull drug apparently.
29-07-2008, 07:44 PM #8
29-07-2008, 10:48 PM #9
29-07-2008, 10:50 PM #10
- Join Date
- Mar 2008
hmmm thanks guys.... ive heard of somestrret driven toranas gettin around mid to high 200's at rear wheels.
and thats with na too...
29-07-2008, 10:57 PM #11
27-05-2016, 04:09 PM #12
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- May 2016
15-07-2016, 08:06 PM #13
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- Jan 2015
- Sunshine Coast Hinterland
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