displaying posts 51 to 73 of 73

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Author Subject: A bit disappointed!
stu

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Post #51
smegal wrote:
I'll look into the boost ring but 27mm is ringing a bell, although I could well of dreamt that number.


The restrictor ring Rich supplied me with says 34mm, I didn't have one in the kit I bought.

Not sure if that helps but thought I would post it up anyway. Laugh
Posted 25th Feb 2010 at 02:40
chrisd306

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Post #52
mine only runs 7 ish psi, but no complaints of power

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Posted 25th Feb 2010 at 02:41
buzzbrightyear

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Post #53
smegal wrote:
They are the correct ones.

i mean what make, bosch eg??

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Posted 25th Feb 2010 at 02:43
smegal

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Post #54
Bosch (440cc)

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Posted 25th Feb 2010 at 02:44
buzzbrightyear

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Post #55
qhat ford are they fitted to as standard?

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Posted 25th Feb 2010 at 06:42
petert

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Post #56
I wouldn't be disappointed. A Dynodynamics in shootout mode is about as reliable as it gets. However, forget the flywheel hp. You have 192hp at the wheels. This is the REAL figure that the machine measured. The operator then puts in a multiplication factor to arrive at the flywheel figure in order to keep pub talk happy. It's a shame the other graph isn't in wheel hp as well. Then you could reliably compare results. By my basic estimations, your 192hp ATW gives 250+hp at the flywheel.
Posted 25th Feb 2010 at 10:27
rallyestyle

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Post #57
rich_w wrote:

The problem won't be the intercooler - plenty are using the Forge intercooler and getting 240-260 BHP which is the target power for the conversion.


My bad, just what farmer and i thought was stopping his car making around the same power as mine, all other components were almost the same.

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Posted 25th Feb 2010 at 15:43
rich_w

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Post #58
andy+katie wrote:
qhat ford are they fitted to as standard?



Ford F-150 Lightning Supercharged truck thing Wink

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Posted 25th Feb 2010 at 18:23
rich_w

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Post #59
rallyestyle wrote:
rich_w wrote:

The problem won't be the intercooler - plenty are using the Forge intercooler and getting 240-260 BHP which is the target power for the conversion.


My bad, just what farmer and i thought was stopping his car making around the same power as mine, all other components were almost the same.



A bigger intercooler will always be better for sure - but the low-boost conversion was developed with the Forge intercooler, and plenty of cars have made 250-260 BHP with it, so I don't think it the main reason this car is under-performing.

Smile

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Posted 25th Feb 2010 at 18:30
buzzbrightyear

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Post #60
rich_w wrote:
andy+katie wrote:
qhat ford are they fitted to as standard?



Ford F-150 Lightning Supercharged truck thing Wink

hmm, is that the one that uses the same engine as the gt thing??

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Moonstone phase 7 gti6
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Posted 25th Feb 2010 at 18:26
allesclar

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Post #61
rich_w wrote:
rallyestyle wrote:
rich_w wrote:

The problem won't be the intercooler - plenty are using the Forge intercooler and getting 240-260 BHP which is the target power for the conversion.


My bad, just what farmer and i thought was stopping his car making around the same power as mine, all other components were almost the same.



I bigger intercooler will always be better for sure - but the low-boost conversion was developed with the Forge intercooler, and plenty of cars have made 250-260 BHP with it, so I don't think it the main reason this car is under-performing.

Smile


So by keeping the same intercooler and uprating everything else like you would on high boost, you can still hit over 260bhp hint hint? Smile

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Posted 25th Feb 2010 at 18:30
rich_w

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Post #62
petert wrote:
I wouldn't be disappointed. A Dynodynamics in shootout mode is about as reliable as it gets. However, forget the flywheel hp. You have 192hp at the wheels. This is the REAL figure that the machine measured. The operator then puts in a multiplication factor to arrive at the flywheel figure in order to keep pub talk happy. It's a shame the other graph isn't in wheel hp as well. Then you could reliably compare results. By my basic estimations, your 192hp ATW gives 250+hp at the flywheel.



I think the wheel / flywheel power is correct

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Posted 25th Feb 2010 at 18:50
rich_w

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Post #63
allesclar wrote:
rich_w wrote:
rallyestyle wrote:
rich_w wrote:

The problem won't be the intercooler - plenty are using the Forge intercooler and getting 240-260 BHP which is the target power for the conversion.


My bad, just what farmer and i thought was stopping his car making around the same power as mine, all other components were almost the same.



I bigger intercooler will always be better for sure - but the low-boost conversion was developed with the Forge intercooler, and plenty of cars have made 250-260 BHP with it, so I don't think it the main reason this car is under-performing.

Smile


So by keeping the same intercooler and uprating everything else like you would on high boost, you can still hit over 260bhp hint hint? Smile



Yes

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Posted 25th Feb 2010 at 18:56
rich_w

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Post #64
Another thing to bear in mind

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Posted 25th Feb 2010 at 18:59
smegal

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Post #65
It went on the rollers again [at skip browns this time] and they said that the mapping was untidy at part throttle and could be tidied up.

The bigger ring made the fuelling lean out but didn't really add a noticeable power gain so it went back off.

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Posted 11th Mar 2010 at 21:42
robthe6

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Post #66
rich_w wrote:

If you

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Posted 12th Mar 2010 at 01:32
mabgti

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Post #67
craig... get the compression test done.. get diagnostics run on all sensors.. then concentrate on timing and then look at the map. As these maps accomodate alot of variations hence why there is no real need for a custom map!

when did you go skip browns? printout?

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Posted 12th Mar 2010 at 03:41
allesclar

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Post #68
in fairness too craig, your car was idling around 800 rpm, thats seems a tad bit low Dunno

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Posted 12th Mar 2010 at 03:43
smegal

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Post #69
I really can't see it losing compression since the last test, it was compression tested before it had a top end rebuild. As for sensors, the Lambda, CTS and ICV are all new genuine replacements. I will look at the Map sensor and the TPS though. Also it ran and idled perfectly before the boost so the sensors should still be fine.

It was more of a diagnostics than a power run, I was seeing if it was worth fitting the restricter with a 4% bigger hole in it. The operator was holding it at varying revs and monitoring the AFR, this is why he mentioned the map issues at low throttle openings.

As said above the mixture become a little lean with the larger ring in it and I reverted back to the smaller one to reduce damage. On the run there was no smoke and it hasn't used any oil in the 1500 miles it's done so far.

I think the next thing will be a trip to chipwizards for a look at the timing.

If that shows nothing up then a compression test will be looked at.

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Posted 12th Mar 2010 at 06:19
mabgti

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Post #70
What was the point in that? partial throttle afrs arent any use to diagnose your issue. In all honesty this sc setup will not be perfect as say a pos boost setup usimg a standalone ecu.

A timing check wont take long.. although id use a scope and a dial gauge Smile
Let me know when you book with wayne as i need a power runYes

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Posted 12th Mar 2010 at 11:52
rich_w

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Post #71
The map issues at low throttle openings are more likely to be lambda related than ECU software related.

The ECU runs in closed loop at throttle angles less than 70% so will be constantly trimming the fuelling.

You should have just taken it to Cchipwizards in the first place - taking it to someone that knows nothing about the conversion isn't going to help a lot.


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Posted 12th Mar 2010 at 23:05
smegal

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Post #72
It will be going to chipwizards when I have the money. This was as an exercise to make sure that the new boost ring wouldn't make it run lean [which it did].

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Posted 13th Mar 2010 at 05:26
paul_gti6

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Post #73
That told you Smegal Smile
Posted 12th Mar 2010 at 23:51

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