Jesse888 Forged/stroker turbo ek9


Cheers man. Can't wait to test them out properly!
Just this tps issue to sort and it's back on track!
 
I forgot to mention..
I weighed the old setup and then weighed the new setup to see what the difference was.
Old wheels and tyres 17.5kg each
Old calipers, discs, worn pads and brake lines 13kg per side.
So that's 61kg in total.

New wheels and tyres 16kg each
New calipers, discs, new pads and brake lines 11kg per side (remember the discs are 310x32 vs the stock 282x24?)
That's 54kg in total.

So a total weight SAVING of 7kg, which when the car is as stripped as mine is that's a good amount of weight. Add to the fact it's all unsprung and a good portion of it is rotating so I'm happy with that.
Noticed that a 225/45/16 dz03g is a good 10kg though, makes you wonder why track tyre manufacturers don't quote the weights?
Does anyone have any track tyre weights? Any sizes will do just to get a rough idea if these tyres are very heavy or if that's normal.

Still got the TPS issue, although it appears to have got a little better. If I can't solve the issue before the next trackday then I'll just have to richen the tune to cover the slight lean moment the engine has when the TPS drops until I can fix it. Band-aid at best but it's better than blown engine as I'm pretty sure it knocks as it leans out momentarily.
I'll play with the plug pins each end of the wiring and see how that goes.
 
Wow that's a good weight save!
Unsprung weight! Haven't heard that term used for a while.
Takes me back to the Motorsport engineering days :rolleyes:
 
B16Swt said:
Wow that's a good weight save!
Unsprung weight! Haven't heard that term used for a while.
Takes me back to the Motorsport engineering days :rolleyes:
Click to expand...

I did a level 1 motorsport engineering but the funding for it was cut before level 2. So that didn't happen in the end, although I feel I've taught myself a fair amount of what I'd have learnt anyway
 
How much did the 7kg cost?
Throw in a lithium battery and save 4/5 kg over a "lightweight" battery, for a fraction of the cost:nice:

However saving on the unsprung weight always helps wonders.
 
Murray said:
How much did the 7kg cost?
Throw in a lithium battery and save 4/5 kg over a "lightweight" battery, for a fraction of the cost:nice:

However saving on the unsprung weight always helps wonders.
Click to expand...

Like to see a lithium battery stop the car though...
Obviously I didn't buy the brakes with weight saving in mind, which is why I was surprised when they where lighter than the stock setup despite being so large.
 
Impressive weight on the battery! not sure how much mine weights but It will be like 4/5kgs I'd imagine.
Expensive? Lol
 
image.png
13kg saving with this battery!
900g
 
I'm not on the stock one, I've got a small kit car type battery so it's not very heavy but lithium sounds like a winner!
 
So I think (hope) I've found my TPS issue. I depinned the TPS plug and tried to slide the connectors onto the TPS terminals one by one. Each one was very loose, no real resistance to sliding on or off at all, 30 secs with a pair of pliers and they are now grabbing the terminals much tighter. I'm wondering (again hoping) that the vibration of high rpm was rattling the connection and causing the issue. Does seem a bit fair fetched to me but I don't know electrics all that well.
18 min datalog with various boosts and rpms show ZERO issues with the TPS trace and subsequently no knock either... maybe it's just coincidence, time will tell.
The logs did show up one issue though, Intake Air Temps(IATs) are just creeping over 40c with the hot weather. This isn't terrible news but it's hot enough. So I clearly need to move the air filter away from behind the rad/oil cooler.
Also need to play with the air temp correction table a tiny bit as the AFRs where a tiny bit richer (like 0.2-0.3 AFR) than they usually are.
 
jesse888 said:
So I think (hope) I've found my TPS issue. I depinned the TPS plug and tried to slide the connectors onto the TPS terminals one by one. Each one was very loose, no real resistance to sliding on or off at all, 30 secs with a pair of pliers and they are now grabbing the terminals much tighter. I'm wondering (again hoping) that the vibration of high rpm was rattling the connection and causing the issue. Does seem a bit fair fetched to me but I don't know electrics all that well.
18 min datalog with various boosts and rpms show ZERO issues with the TPS trace and subsequently no knock either... maybe it's just coincidence, time will tell.
The logs did show up one issue though, Intake Air Temps(IATs) are just creeping over 40c with the hot weather. This isn't terrible news but it's hot enough. So I clearly need to move the air filter away from behind the rad/oil cooler.
Also need to play with the air temp correction table a tiny bit as the AFRs where a tiny bit richer (like 0.2-0.3 AFR) than they usually are.
Click to expand...
Had so many issues with electrics all down to a poor connections.
If you were to put an ohm Meter on the in and the other end of the wire and fiddle with the terminal etc the resistance with vary, which can intern disrupt the signal.
Some manufacturers use gold plated pins to help overcome this but usually the gold wears off and that's an issue in its own lol
 
Amazingly I don't own an ohm meter. I'm that much of an electrical noob lol
Good to hear you think it's likely.
 
Yeah man. I'll bring some things that are abit specialist to my car. Like my brakes are now Allen head bolts and things like that...
 
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