MkII
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| posted on 24/11/08 at 08:53 PM |
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what to replace crossflow with???
i would like to replace crossflow engine in my striker. new engine must have alloy block and around 150/160 bhp.im considering toyota 4a-ge ford zetec
se or honda 1.6 v-tec anyone got any recomendations or alternatives thanks m.
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flak monkey
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| posted on 24/11/08 at 08:57 PM |
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The 4-age is a cast iron block. But its still a very light engine.
Only the 1.25 Zetec Se engine is an ali block, all others are cast iron.
Rover K-series, cheap as chips and tuneable.
Sera
http://www.motosera.com
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StevieB
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| posted on 24/11/08 at 08:59 PM |
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I thought all zetec se (sigma) engines were alloy blocks?
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flak monkey
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| posted on 24/11/08 at 09:03 PM |
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quote:
Originally posted by StevieB
I thought all zetec se (sigma) engines were alloy blocks?
Ahh yes they broght out some more, up to 1.6l. Apologies, I stand corrected.
Only 123bhp in standard form out of the mundaneo though...
Sera
http://www.motosera.com
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philw
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| posted on 24/11/08 at 09:07 PM |
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Duratec, alloy block, and excellent tuning potential.
Must try harder
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Danozeman
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| posted on 24/11/08 at 09:16 PM |
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Honda v-tec would be a good revvy engine. Not sure what u could run it with though if u didnt want standard managemnt and what box ud use.
But it has to be zetec.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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MkII
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| posted on 24/11/08 at 09:19 PM |
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got to say i'm completely undecided on engine at moment would like to stay with a1.6 to compete in <1700 class. has k series got alloy block
and is it true thy suffer from head gasket problems?
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Antnicuk
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| posted on 24/11/08 at 09:25 PM |
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how about an rx8 engine, comes with six speed box, 9k rev limit and 230 bhp. Complete set ups are selling for £1500 on ebay.
Very light and small
600 BHP per ton, Stylus Brought back from the dead! Turbo Rotary Powered!
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MkII
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| posted on 24/11/08 at 09:26 PM |
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im sure i could make an adaptor plate to mate v-tec to type 9 but would a type 9 survive the v-tecs rpm?
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tomblyth
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| posted on 24/11/08 at 09:29 PM |
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honda s2000 engine and box
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MkII
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| posted on 24/11/08 at 09:31 PM |
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Antnicuk.looks like youve allready done the turbo rotary thing whats it like to drive?if its any thing like the 320bhp impreza i used to own the
thought of it coming on boost mid corner in a 500kg striker scares me to death.m.
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Antnicuk
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| posted on 24/11/08 at 09:45 PM |
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mine is a bit mental but the rx8 isnt turbo'd so it has very linear revy power band. Mines the older rx7 engine which was/is turbo'd but
then i'm looking for 400 + flwhp in the near future.
The rx8 engine is very similar in power to the honda engine which would be my second choice. It has less of an aggressive peak. the honda kicks you in
the nuts at 7k rpm. The rx8 is much smoother.
600 BHP per ton, Stylus Brought back from the dead! Turbo Rotary Powered!
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Dingz
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| posted on 24/11/08 at 09:50 PM |
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The Honda engine turns the wrong way though unless you use the S2000 one. Pretty fast in reverse though
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MkII
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| posted on 24/11/08 at 10:02 PM |
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do all honda engines rotate wrong way? i think theres a guy hillclimbs a 1.6 honda engined westfield but dont know what he uses for a box.m.
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Memphis Twin
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| posted on 25/11/08 at 12:51 AM |
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I would spend the money on a better X-Flow. It's actually lighter than you think, and for hillclimbing the midrange grunt from a really good
8valve is just what you need. 160bhp is easily achievable without the need for steel internals, ( I know because I've done it) and you're
car is already set up for it. Keep it simple. If money's no object stick a BDA in it.
If you want to save a little weight on your Striker how about an alloy diff. casing, alloy bellhousing. Get rid of unnecessary oil coolers etc etc
(assuming you haven't already done it).
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thepest
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| posted on 25/11/08 at 03:13 AM |
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yes as above that is possible out of a crossflow. Use 84 bore if you have a 711M block. I used fiat pistons to achieve 84 bore hence a displacement of
1719 cc.
If used on the road too, dont go bigger than a 244 cam. As for compression I use 11:1.
If rebuilding from scratch then consider the 4age,otherwise keep the x-flow.
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Ivan
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| posted on 25/11/08 at 06:59 AM |
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As far as I know the Nissan 2 litre motors are all Alluminium with tons of potential and very strong.
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JimSpencer
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| posted on 25/11/08 at 09:14 AM |
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quote:
Originally posted by MkII
got to say i'm completely undecided on engine at moment would like to stay with a1.6 to compete in <1700 class.
Hi
Been here and done this conversion, though on a Mk3 striker.
Spent a long time looking at steel crossflows etc etc. (Had a burton 1650 in it at the time)
Decided after a chat with the guys at RAW (who make the striker now) that the 4AGE was the way to go.
The rationale we used was :-
conversion wasn't cheap but less than the cost of a good crossflow engine..
Once the conversion was done if we killed an engine then fixing it would be cheap..
(tested in practice last season  .. )
RAW fit them now, so easy to pick somebody elses brain it anything went pear shaped - and get the bits off the peg.
Best move we ever did, transformed the car, great engine (& on webers it sounds just like a BDA  )
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mcerd1
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| posted on 25/11/08 at 10:00 AM |
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quote:
Originally posted by flak monkey
quote:
Originally posted by StevieB
I thought all zetec se (sigma) engines were alloy blocks?
Ahh yes they broght out some more, up to 1.6l. Apologies, I stand corrected.
Only 123bhp in standard form out of the mundaneo though...
and the 1.7 VVT in the puma 
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Memphis Twin
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| posted on 25/11/08 at 11:11 AM |
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Is your Striker primarily a road car with occasional Hillclimb/Sprint use? Or is it a Hillclimb car with occasional road use?
If it's the latter, I still say get your crossflow rebuilt. Buy the BEST cylinder head that you can afford from someone like Peter Burgess or
Dave Brooks. I know these names don't slip off the tongue like some other big companies, but they really are much better. Use forged pistons,
and Dave Brooks modified standard rods. Standard, lightened rockers with steel posts and shaft, Kent VS39 valve springs, Kent 264 cam. Lighweight
steel flywheel, but keep the heavy duty 8.5" organic clutch (paddle clutches are a pain), 1 3/4" 4 to1 exhaust, 45 DCOE Webers with 35mm
chokes (as big as you'll EVER need to go on a Crossflow despite what pub "experts" may say) or quadruple Keihin Flatslide carbs of
33mm (not CV bike carbs). Webers will be easier to jet properly.
If using a 264 cam, you will need a close ratio gearbox. Personally I think the Type 9 is a lousy box, but a straight cut, close ratio gearkit
improves it. Use fully synthetic gear oil to reduce transmission losses. You may need to lower the ratio of your rear diff, and make sure you fit a
plate-type LSD. There's no point having more power if you just spin it all away exiting corners...
I know I make it sound easy, but it really isn't that difficult. The modified standard engine internals are well up to hillclimb/sprint use
(although for circuit racing I may use a steel crank/rods). That little lot will add up to mega X-Flow bhp , with serious grunt from 4500rpm onwards.
Keep a sensible rev limit of 8000rpm (from experience max power will be around the 7000 mark), and you won't have any problems.
It will take thousands of £££s to replicate that power from a "modern" 16v engine, (not just the engine but all the fitting problems) and
if I were able to spend that sort of money I would fit a BDA instead! Proper racing engine, not a converted shopping car engine!
Cheers Chris.
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iank
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| posted on 25/11/08 at 11:39 AM |
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Another option is forced induction on a smaller engine.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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MikeRJ
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| posted on 25/11/08 at 11:57 AM |
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quote:
Originally posted by MkII
do all honda engines rotate wrong way? i think theres a guy hillclimbs a 1.6 honda engined westfield but dont know what he uses for a box.m.
The older "performance" Honda engines e.g. D series, B series and H series engines all rotated anti-clockwise, which is why in the FWD
car you'll find the gearbox on the left side of the engine rather than the right side.
The K20 and F20 engines from the new Civic Tyre R and S2000 rotate in the correct direction.
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JimSpencer
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| posted on 25/11/08 at 12:13 PM |
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quote:
Originally posted by Memphis Twin
It will take thousands of £££s to replicate that power from a "modern" 16v engine, (not just the engine but all the fitting problems) and
if I were able to spend that sort of money I would fit a BDA instead! Proper racing engine, not a converted shopping car engine!
Cheers Chris.
Hmmm, go on then quote some specs?
Going from a Burton 1650 to the 4AGE gained me 40bhp.
Bear in mind that a box stock later 4AGE kicks out 150 bhp, put some mild cams and twin 40's on a 16v and its around 175ish - we're
talking a few hundred quid here not thousands..
And I've done this conversion - there are no 'fitting problems'..
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JimSpencer
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| posted on 25/11/08 at 12:16 PM |
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quote:
Originally posted by iank
Another option is forced induction on a smaller engine.
It would need to be around 1200cc or less though, as the equivalence formula is 1.4 - to stay in the up to 1.7 class that is.
Though I've heard good things about Daihatsu Charade 1.0 Turbo's I've never heard of anybody using one in a Seven - Anybody?
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iank
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| posted on 25/11/08 at 12:42 PM |
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quote:
Originally posted by JimSpencer
quote:
Originally posted by iank
Another option is forced induction on a smaller engine.
It would need to be around 1200cc or less though, as the equivalence formula is 1.4 - to stay in the up to 1.7 class that is.
Though I've heard good things about Daihatsu Charade 1.0 Turbo's I've never heard of anybody using one in a Seven - Anybody?
Not seen them used in 7's, but they can reach 200bhp allegedly. I was just thinking out loud really. In the same vein another option
I've seen suggested is using a 2 litre turbo diesel. Diesel gets a 0.5 multiplier under some regulations, so you move into the 1.4 class with
potential for monster power and torque. No doubt this will be 'adjusted' if people start winning.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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