RallyReason
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| posted on 4/4/13 at 09:57 AM |
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Blacktop Head on ST Bottom End
Was wondering if anyone has used a ST bottom end and a Blacktop head?
If so is it a straight forward swap? Or are there any modifications required? Or am I best to stay with the St complete engine with a VVT delete
kit(hoping to continue to use my current mega jolt and carb setup)
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monck
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| posted on 4/4/13 at 10:29 AM |
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I too was going to do this as i had a blacktop head with piper 285's and i did find someone that had done it and they said it was a fair bit to
do to make it possible so i went down the delete route on the st170 engine .
Ryan
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rhinopower
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| posted on 4/4/13 at 10:30 AM |
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quote:
Originally posted by monck
I too was going to do this as i had a blacktop head with piper 285's and i did find someone that had done it and they said it was a fair bit to
do to make it possible so i went down the delete route on the st170 engine .
Ryan
Totally wrong, the heads are completely interchangeable, its silvertop and blacktops that cant be interchanged easily.
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Not Anumber
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| posted on 4/4/13 at 11:09 AM |
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why does the ST170 engine need the vvt removed. Is it for space saving or compatibility ?
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silky16v
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| posted on 4/4/13 at 02:44 PM |
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quote:
Originally posted by Not Anumber
why does the ST170 engine need the vvt removed. Is it for space saving or compatibility ?
Because it very expensive to setup (ECU & Mapping) with an aftermarket ECU to have the VCT working correctly you need a ecu that can do PWM and
Camshaft postion to map properly to get the best from the VCT
DTA 60 is the cheapest i've found at around £1000 for ecu & loom then there mapping so another £300+ more like £500
some users on here (including myself) have fitted a VCT delete kit and a Zetec pulley on the inlet and then statically set the cam timing i have
personally set mine at 110deg and once it was mapped i'm very happy with the results 
[Edited on 4/4/13 by silky16v]
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RallyReason
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| posted on 6/4/13 at 05:11 PM |
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quote:
Originally posted by monck
I too was going to do this as i had a blacktop head with piper 285's and i did find someone that had done it and they said it was a fair bit to
do to make it possible so i went down the delete route on the st170 engine .
Ryan
Did you ever try and fit the Blacktop head?
What are your results with the ST170 and delete kit?
Are you running carbs or throttle bodies?
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silky16v
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| posted on 6/4/13 at 05:13 PM |
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Look at my thread for ST170 results with VCT delete kit
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RallyReason
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| posted on 6/4/13 at 06:34 PM |
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Been reading a mix of information.
I believe i have 2 options:
- Fit a ST170 engine with the delete kit (using my current carbs and megajolt)
- Can i not use standard Zetec pulleys(hole drilled out) instead of verniers?
- Fit ST170 engine, throttle bodies and a Emerald ECU (which i am told will control the VVT? Expensive option)
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