imp paul
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| posted on 12/8/07 at 08:46 PM |
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re zx12r turbo
hi lads well just got my self a new gt28rs turbo so yer the imps going to have more power well will need more parts now eg tial 38mm waste gate fmu
reg and plenum box also low comp pistons ££££££££££££ don't tell the wife lol
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welderman
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| posted on 12/8/07 at 09:23 PM |
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seems to me we should start our own club soon. 
Thank's, Joe
I don't stalk people
http://www.locostbuilders.co.uk/forum/23/viewthread.php?tid=172301
Back on with the Fisher Fury R1
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hobbsy
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| posted on 12/8/07 at 10:00 PM |
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Is this the infamous disco potato?
What kind of boost figure and power are you aiming for?
Not checked the compressor map but would you think this is slighly too big for an R1?
Where did you get it from and what did you pay (if you don't mind me asking - feel free to U2U if you don't want to post on open
forum).
Should be interesting.
Saw a couple of Imp's (one broken down?) on the side of a bit of the A43 near Northampton on my way home earlier. Would have stopped but I was
busting for a pee and there were on the other carriageway.
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Hellfire
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| posted on 12/8/07 at 11:18 PM |
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Just make sure you're careful Paul...
Steve
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clutch_kick
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| posted on 12/8/07 at 11:27 PM |
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quote:
Originally posted by hobbsy
Is this the infamous disco potato?
What kind of boost figure and power are you aiming for?
Not checked the compressor map but would you think this is slighly too big for an R1?
Where did you get it from and what did you pay (if you don't mind me asking - feel free to U2U if you don't want to post on open
forum).
Should be interesting.
I checked, and i've had experience with that turbo too. It's designed to run efficiently at around 0.8 to 1.8Bar. Which is a bit too
highish for an R1 engine with lowered compression only. It will handle boost up to 2.2 bar easily.
So unless you are going to spend thousands on your setup, i'd get something a little bit more efficient at lower boost settings, no more than
0.8bar, 1.0bar if you can run race fuel (something like 105 octane) or use Water Injection.
My planned setup is a TD04H-19T, lowered compression, and Mapped-in water injection.
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Hellfire
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| posted on 12/8/07 at 11:41 PM |
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But he's running a ZX12R not an R1... I believe ZX12R's have quite a low compression compared to R1's 12.7:1 compared to 13:1 for
the R1
Steve
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oadamo
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| posted on 13/8/07 at 06:36 AM |
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lag
adam
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hobbsy
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| posted on 13/8/07 at 10:34 AM |
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quote:
Originally posted by Hellfire
But he's running a ZX12R not an R1... I believe ZX12R's have quite a low compression compared to R1's 12.7:1 compared to 13:1 for
the R1
Steve
Yeah I know - I was thinking of my car 
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clutch_kick
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| posted on 13/8/07 at 03:18 PM |
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That's true Hellfire, which might be ok for low boost. But the GT28RS is a bit overkill for low-boost applications. That is if you are
disciplined enough to run low boost hehehe. I know I'm not ... hence the Water injection lol
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Moorron
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| posted on 13/8/07 at 06:50 PM |
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i take it you are going to lower that compression? 
Using reno 5 turbos for some time which have had every thing stuck on them turbo wise. Its a 1397 cc engine so is larger than the zx12, but only revs
to 8k (modified) so not to far off the type of air usage within the engines. When i went from a T2 to a T25 i noticed the lag alot, Not sure of the
compressor or exhaust housing used on mine but it was what i would call on the large size for the engine.
That was at 18psi too. If your looking at low boost applications i wouldnt go anywhere near a t28. Either go for a modded T2 like me for my cbr1000f
or have a roller bearing T25.
This is all going on my dealings with the 5 tho, i havent finished my cbr T2 yet so could end up out of puff with the tiny T2. lol
I olso choose the T2 as i wanted the turbo to stay inside the engine bay, it also made it easier to mount it higher up allowing to the oil to drain
into the side of the sump.
Sorry about my spelling, im an engineer and only work in numbers.
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imp paul
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| posted on 13/8/07 at 07:48 PM |
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hi chaps right this is a top turbo as malc at MB customs said to me the spec is 63 COMPRESSOR
DUAL BALL BEARINGS
.67T COMPRESSOR WHEEL CAPABLE OF .59 Lb/MIN AIRFLOW
BOOST AT 2700 - 3500 and yes i do hope to put je pistons in it
http://www.je-pistons.co.uk/product_info.php?cPath=618_8030_8049_8051&products_id=1631045 so the compreshion will be 9.8.1 hope low boost 6psi
high approx 13psi but see how it goes 1 bit at a time but it should be lots of fun
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clutch_kick
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| posted on 13/8/07 at 11:15 PM |
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Paul ... seriously if 13psi is your Max boost then you are not even going to start scraping the potential of that turbo.
The GT28RS is happiest blowing around 25psi, not 13!!!
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imp paul
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| posted on 14/8/07 at 06:17 AM |
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i know it can do a lot more but bike engines give good power with small boost i hope 7psi will give approx 290 bhp or more would be nice so 13psi
should be mad for it lol
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Moorron
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| posted on 14/8/07 at 09:20 AM |
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yeh i think silly power is possible out of your engine. How heavy is your car?
Back to the OP. If you havent handed over any money yet i cant urge the point of just getting a second hand turbo first EVEN if its a huge T28, i dont
think power will be your problem it how its going to be produced within the rev range of the engine. Any turbo car would in a perfect would have no
lag but produce huge quantities of pressure and air flow. Only when huge power figuers are needed for pub talk or drag racing is where the lag is
ignored and power takes no1 priority.
I think you want the other, no lag and a relative mild increase in power (for now lol). Its good youve set a target, most peeps dont know what they
want so can never obtain their goal. If 13 psi is your 'fingers crossed' goal and 7 psi is you miniumum then dont waste your money on the
T28.
Go and get a T25 off a rover 216 (?) or S14 nissan 200sx and build your system round that. That way if you find its fine you can then order a nice
modded roller bearering T25. If its too laggy youve lost £100 not £600+ on the T28.
If its not producing the correct power THEN order the T28.
Just trying to save you some dosh. This is the way im doing it, if my T2 is knackered i will just renaw it, if its too small then i will just move to
a T25 if it will fit in the car.
ps, im aiming to keep my cr at 10.5:1 and see what it does. Im aiming for a min of 5psi and possibly 7 psi giving my close to 190 bhp. So far all in
ive spend £600, which includes the bespoke intercooler, plenum, manifold, fuel pump and regulator, silicone hoses, actuator, turbo and other bits n
bobs.
[Edited on 14/8/07 by Moorron]
Sorry about my spelling, im an engineer and only work in numbers.
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hobbsy
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| posted on 14/8/07 at 09:40 AM |
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The S14 200SX comes with a T28 on its SR20DET (2.0) engine, its the S13 with the CA18DET (1.8) that has the T25.
And wasn't it the 220 they did a turbo version of on the Rover (Tomcat?) - TBH I could be wrong on that one as I don't know Rovers but
I've owned both 200SX's and changed turbos on them both.
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richard thomas
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| posted on 14/8/07 at 10:06 AM |
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quote:
Originally posted by imp paul
hi lads well just got my self a new gt28rs turbo so yer the imps going to have more power well will need more parts now eg tial 38mm waste gate fmu
reg and plenum box also low comp pistons ££££££££££££ don't tell the wife lol
Following this with interest - are you using a rising rate fuel regulator?
Rich.
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clutch_kick
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| posted on 14/8/07 at 10:40 AM |
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Yeah that power figure is achievable, but I think you will suffer a lot of Lag, and I do not recommend running anti-lag unless you have a rally team
budget.
What you are looking for is the smallest compressor that will cover your needs, and a turbine section that is not too restrictive. Remember that a
bike engine needs to breathe very freely to achieve it's phenomenal rpm's. Unfortunately this is my very first ever BEC turbo project, so
i cannot tell you what A/R's would work best, and help is not easy to find. The compressor is easy to work out, but the Turbine section is a
bit of a trial and error approach unfortunately.
A large compressor will need to over come it's inertia to spin up, then once it does, the power will come in as a sudden spike. Not a problem
if you're drag racing in a straight line and keeping the engine in the power band, but not optimal for fooling about round-abouts or the track.
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imp paul
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| posted on 14/8/07 at 05:57 PM |
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hi lads ok big cc racing do a kit for zx12r as do MB customs to which i do think would be a lot better the kit big cc do use a gt35r so this give
550bhp this is just daft so hence gt28r roller b turbo o and my imp is approx 500kilo so i would be happy with 300bhp all day long still got to get
stuff made to do the job and it all costs££££ so as i said 1 bit at a time but it will be 1 silly fast imp lol  and yes i will use a BEGLI FUEL
PRESSURE REGULATOR if i can get 1 at right pennys but the best place for all your tubo needs is here
http://www.mbcustoms.co.uk/30322/info.php?p=1&pno=0
[Edited on 14/8/07 by imp paul]
[Edited on 14/8/07 by imp paul]
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