Update on my project!
?????
28 October 2003, 12:09 AM
#2
Scooby Regular
iTrader: (1)
Join Date: Jan 1999
Location: UK
Posts: 15,271
Likes: 0
Received 0 Likes
on
0 Posts
Just a few pics of my recent exploits in getting my car project finished.
There are a couple of detail issues to be resolved now - and I am unfortunately waiting for one final component from the States that was originally supplied to the wrong spec - so near yet so far.
The engine has been built and fully mapped and exceeded its target of 500lbs ft of torque and 500bhp. This was achieved with a relatively small Garrett GT turbo, modified to give excellent on road response.
One thing that is certain - at these levels of genuine torque, it focuses the mind on every detail being right. Even running relatively low boost the stress on all components is incredible.
Interestingly between the first and second mapping sessions we adjusted the cam timing and low down this made an enormous difference. On the first runs the car produced around 320lbs ft of torque at 3,000rpm and this jumped up by 180lbs ft with adjusted cam timing.
Of course on an engine dyno - turbo spool up is at an optimum due to the load profile - on the road these results will come 2-400rpm later. However I will be very pleased with well over 500lbs ft at 3,500rpm, and so much torque low down will be very stressful on all components.
When the project is finished and the car is on the road and done a few miles and done some runs at Elvington/Santa Pod or wherever then I will provide the full and long list of credits to those who have helped.
It has been a great and at times frustrating learning experience - with many things with hindsight possibly being done differently - and maybe getting me on the road sooner
But the light at the end of the tunnel is getting brighter - I will bring further updates to you here as the project nears completion.
Crack Tested Surface Ground Block
Crack Tested Crank
Modified Fuel Rails
Engine Being Mounted on Dyno Cradle
Engine Dyno Cell
Getting hot in here!
Getting hotter!
Dyno Cell Control Room - Mapping the Pectel
New Rear Diff with Uprated Mounts
Oh - fresh off the press...
...my early power graphs and a couple of other pics.
Power runs were carried out with 97RON pump fuel with NO additives. We may do a race fuel map later. Boost was running at 1.7bar at peak power, 1.85bar at peak torque. This graph is after we turned the boost DOWN due to excessive torque at 3,000rpm
Power Graphs from early mapping
Scary Dyno Operator!
Using various sensors for testing everything!
[Edited by Rannoch - 10/28/2003 12:11:04 AM]
There are a couple of detail issues to be resolved now - and I am unfortunately waiting for one final component from the States that was originally supplied to the wrong spec - so near yet so far.
The engine has been built and fully mapped and exceeded its target of 500lbs ft of torque and 500bhp. This was achieved with a relatively small Garrett GT turbo, modified to give excellent on road response.
One thing that is certain - at these levels of genuine torque, it focuses the mind on every detail being right. Even running relatively low boost the stress on all components is incredible.
Interestingly between the first and second mapping sessions we adjusted the cam timing and low down this made an enormous difference. On the first runs the car produced around 320lbs ft of torque at 3,000rpm and this jumped up by 180lbs ft with adjusted cam timing.
Of course on an engine dyno - turbo spool up is at an optimum due to the load profile - on the road these results will come 2-400rpm later. However I will be very pleased with well over 500lbs ft at 3,500rpm, and so much torque low down will be very stressful on all components.
When the project is finished and the car is on the road and done a few miles and done some runs at Elvington/Santa Pod or wherever then I will provide the full and long list of credits to those who have helped.
It has been a great and at times frustrating learning experience - with many things with hindsight possibly being done differently - and maybe getting me on the road sooner
But the light at the end of the tunnel is getting brighter - I will bring further updates to you here as the project nears completion.
Crack Tested Surface Ground Block
Crack Tested Crank
Modified Fuel Rails
Engine Being Mounted on Dyno Cradle
Engine Dyno Cell
Getting hot in here!
Getting hotter!
Dyno Cell Control Room - Mapping the Pectel
New Rear Diff with Uprated Mounts
Oh - fresh off the press...
...my early power graphs and a couple of other pics.
Power runs were carried out with 97RON pump fuel with NO additives. We may do a race fuel map later. Boost was running at 1.7bar at peak power, 1.85bar at peak torque. This graph is after we turned the boost DOWN due to excessive torque at 3,000rpm
Power Graphs from early mapping
Scary Dyno Operator!
Using various sensors for testing everything!
[Edited by Rannoch - 10/28/2003 12:11:04 AM]
28 October 2003, 12:26 AM
#4
Scooby Regular
iTrader: (1)
Join Date: Jan 1999
Location: UK
Posts: 15,271
Likes: 0
Received 0 Likes
on
0 Posts
Thank you
Just to add - the figures are from the engine dyno and there are a number of logs of various runs and different configurations of components. May try another turbo...although don't want to go too big as I would like it tractable for track days.
Rannoch
Just to add - the figures are from the engine dyno and there are a number of logs of various runs and different configurations of components. May try another turbo...although don't want to go too big as I would like it tractable for track days.
Rannoch
28 October 2003, 07:42 AM
#7
Scooby Regular
Join Date: Oct 1999
Posts: 3,491
Likes: 0
Received 0 Likes
on
0 Posts
That looks very promising !
Can that scary operator do my car as well ?
One question on the bench dyno: do they get adequate cooling for the FMIC ? I assume (perhaps wrongly) that once moving on the road the inlet temps would drop ? What temps were you seeing ?
Great pics as well, I always wondered about bench dyno's (like how do they connect everything together). Must be a serious job connecting intake/exhaust bits etc...
Trending Topics
28 October 2003, 09:11 AM
#8
Scooby Regular
iTrader: (1)
Join Date: Jan 1999
Location: UK
Posts: 15,271
Likes: 0
Received 0 Likes
on
0 Posts
Theo,
the pics were taken during set up and running in.
For power runs they put a box around the FMIC which is taped to the front of a BIG fan. This pumps air through the FMIC at high volume.
The air however is ambient from the dyno cell - and even with big external extractors it does get quite warm. The inlet temps are typically in the range of 35deg C.
Probably not disimilar to pushing on on the road. One thing we are discovering is that the Scooby HKS FMIC is probably limited to around 500bhp tho - may need to try something else...
...however there is always something else and every time one changes something it is more time...
...need to draw the line somewhere
Rannoch
the pics were taken during set up and running in.
For power runs they put a box around the FMIC which is taped to the front of a BIG fan. This pumps air through the FMIC at high volume.
The air however is ambient from the dyno cell - and even with big external extractors it does get quite warm. The inlet temps are typically in the range of 35deg C.
Probably not disimilar to pushing on on the road. One thing we are discovering is that the Scooby HKS FMIC is probably limited to around 500bhp tho - may need to try something else...
...however there is always something else and every time one changes something it is more time...
...need to draw the line somewhere
Rannoch
28 October 2003, 12:17 PM
#12
Worth noting the blue glow from the headers is because the digicam is sensitive to infared light. You will get the same colour if you aim (and use) a IR remote at the camera.
paul
paul
28 October 2003, 12:26 PM
#13
Scooby Regular
iTrader: (1)
Join Date: Jan 1999
Location: UK
Posts: 15,271
Likes: 0
Received 0 Likes
on
0 Posts
Pavlo is indeed correct - we were merely running in with a very faint red glow at around 600deg C.
Bhp peak was at 514, at 1.7bar. This was the peak for the turbo in this configuration. More could be had from race gas, but not mapped that at this stage.
Rannoch
Bhp peak was at 514, at 1.7bar. This was the peak for the turbo in this configuration. More could be had from race gas, but not mapped that at this stage.
Rannoch
28 October 2003, 12:43 PM
#14
Former Sponsor
iTrader: (4)
Join Date: Jan 2001
Location: ECU Mapping - www.JollyGreenMonster.co.uk
Posts: 16,548
Likes: 0
Received 2 Likes
on
2 Posts
Worth noting the blue glow from the headers is because the digicam is sensitive to infared light. You will get the same colour if you aim (and use) a IR remote at the camera.
paul
paul
Very impressive Trout..
Simon
28 October 2003, 05:03 PM
#16
Scooby Regular
iTrader: (1)
Join Date: Jan 1999
Location: UK
Posts: 15,271
Likes: 0
Received 0 Likes
on
0 Posts
Dyney,
believe me I am trying!
Will obviously bring updates when it is up and running!
Managed to miss a whole season of fun - but hey ho - there will always be next year when I am sure the competition will be hotting up!
Rannoch
believe me I am trying!
Will obviously bring updates when it is up and running!
Managed to miss a whole season of fun - but hey ho - there will always be next year when I am sure the competition will be hotting up!
Rannoch
, superb, must be good to see it nearly ready to go in
29 October 2003, 12:48 PM
#26
I don't believe it's a major secret, anyone can go there with an engine, or even have one built. Ask Mark at Lateral Perf if your interested.
Any engine builder that has a dyno cell is not messing about, and more than like have a spotless workshop.
Paul
Any engine builder that has a dyno cell is not messing about, and more than like have a spotless workshop.
Paul
29 October 2003, 06:26 PM
#27
Scooby Regular
iTrader: (1)
Join Date: Jan 1999
Location: UK
Posts: 15,271
Likes: 0
Received 0 Likes
on
0 Posts
As I have said elsewhere - am happy to credit everyone who has been involved in my project, including dyno cell man, when the car is up and running - so hopefully not too long! Last component arrives this week apparently - but is described as a 'prototype' so it had better bloody well work.
If not I have an alternative strategy
Not trying to keep any secrets - but I am not 'bigging up' those involved as we are still in the process of completion.
Rannoch
If not I have an alternative strategy
Not trying to keep any secrets - but I am not 'bigging up' those involved as we are still in the process of completion.
Rannoch
29 October 2003, 07:09 PM
#28
Scooby Regular
Join Date: Oct 1999
Posts: 3,491
Likes: 0
Received 0 Likes
on
0 Posts
If not I have an alternative strategy
But I understand: first get the old lady running... Can't wait to read all the specs & details though !
