After much deliberation, then some mind-changing, then re-thinking....
I have decided to drop an ST170 engine into my spitfire over the winter. I intend doing this as a scratch install. As such I have bought a set of
GSXR1000 (respacable) ITBs and hoping these will fir into teh ST170 inlet. The engine itself I will pick up in a couple of months time.
Now, I am undecided which ECU I should be looking at. I wast proper VVT control, so nothing that is just an on/off for the VVT.
I know there is the ME221 which is cheapish, but is it any good?
Or how about a microsquirt with a VVTpro controller (the pair would be circa £600ish)
After that the ECU's seem to be £900+ for an Omex 710 or DTA S60 which would be pushing my allowed budget a bit too much.....but may be worth the
grief from the senior management?
Any bright ideas or recommendations? I haven't seem any secondhand come up for sale, but would not be averse (unless it is a bad idea?)
Cheers
Clive
An ecu that can control it is one thing. Some one that can map it properly is another.
I run my st170 on zx9 carbs with megajolt and Mtech vvt controller which comes with oem software to control vvt seems to work certainly gets down the road quick
Can't answer about ECU. But I've an engine going spare and a spacing kit to fit gsxr1000 bodies to the std st170 inlet. Swapped the manifold
on mine when I put a crate blacktop in a few months ago. Also have trumpets, backplate and filter to match.
Cost of ECU is what led me down the blacktop route tbh.
I agree getting someone to map it correctly is the challenge.. I have a DTA s60 with full cam control and the cam advance works a treat. I have a
racetech dash and the data stream sends target and actual cam position which tracks pretty good. It's getting someone to tune it and having an
understanding of the cam advance map. There was a company who developed a cam control module and they reverse engineered the std ford cam map so I
plugged in these numbers. Mine runs a bit rich so probably could do with another RR session.
Dave B
[Edited on 4/8/16 by Dave Bailey]
quote:
Originally posted by big_wasa
An ecu that can control it is one thing. Some one that can map it properly is another.
quote:
Originally posted by big_wasa
An ecu that can control it is one thing. Some one that can map it properly is another.
Jenko on here got his 1.7 VCT Puma Zetec SE mapped at Northampton Motorsport using an Omex 600.
However, the 1.7 VCT seems to work happily in a quasi VTEC mode where it is fully off at low revs, then fully on from approx. 2k to 5.8k and then off
again at high revs, also turned off on low load across all rev range (under 30% load). His Blog has pictures of the RR runs with all on, all off
showing these cross over points plus the final map (gave 155hp on stock internals with GSXR throttle bodies and exhaust in his J15, blue one just
sold).
No idea whether the St170 will react the same but may be a way of getting it up and running.
I have a omex 710 on my Puma 1.7 but will start off with Jenko's scheme until I get chance to get it fully mapped, omex 710 also provides the
opportunity to run fully sequential injection which may be worth figuring into the equation (S60 does as well IIRC).
I used these guys for my Duratec engine. At the time I built a new loom from the part built loom that they supply but you can also buy some plug and
play stuff.
The basic unit which will also control VCT on a map not just on and off comes out very reasonable compared to other units with the same functions.
Mine was mapped by Gordon at Street Racers in Leicester. He had not done one before and said it was easy enough to get his head around.
http://twinkam.co.uk/epages/191f6b26-60bf-483c-b021-755a0c9099c1.sf/en_GB/?ObjectPath=/Shops/191f6b26-60bf-483c-b021-755a0c9099c1/Products/SC301
Nice to have more brands in the hat to choose from.
Paul