Discussion
You'll have to excuse me if I've got something wrong here, but why are they using a drivetrain loss of 26%. I don't know an aweful lot about the Toyota engine but LOT use 12.5% for their race series calculations.
Also, why don't the torque curve and power curve cross eachother at 5250 rpm as they should do?
Again, apologies if I'm talking s
te.
Also, why don't the torque curve and power curve cross eachother at 5250 rpm as they should do?
Again, apologies if I'm talking s
te.Edited by jamwill79 on Monday 1st June 09:35
jamwill79 said:
You'll have to excuse me if I've got something wrong here, but why are they using a drivetrain loss of 26%. I don't know an aweful lot about the Toyota engine but LOT use 12.5% for their race series calculations.
Also, why don't the torque curve and power curve cross eachother at 5250 rpm as they should do?
Again, apologies if I'm talking ste.
The power and torque axes have different scales.Also, why don't the torque curve and power curve cross eachother at 5250 rpm as they should do?
Again, apologies if I'm talking s
te.Edited by jamwill79 on Monday 1st June 09:35
Edited by coxy79 on Monday 1st June 10:26
JTBUSH said:
Top day out. Mine came in at 163bhp which Im very happy with.
Hey JT, been a while. Sounds like she'll be flying now. I take it you've got the cams set up properly now? just induction/exhaust and cams? or have you changes the ecu?
P.s sorry for the thread hijack. Can't imagine what 250 in and elise/exige would feel like!
Hi Steve
My head gasket went again so I stripped the top end myself and just took my time doing it and made sure I ticked all the boxes re things to check.
i took the head into work to use the hardness tester and the met lab monkey managed to scratch my head so it needed a skim.
i decided to send it down to Dave Andrews for the skim and for him to have a look over it. Whilst there, I asked him to do what he does best to it. It came back looking very very good with the ports properly shaped and flowed and all the water ways opened and cleaned up for greater efficiency.
Due to the indent scratch on the head, Dave had to skim a fair amount off. This, along with a previous skim and using the single Payen Gasket has meant the CR is now well up which will also have had an effect.
I modded the inlet and exhaust manifold myself, basically just removing any weld which which was internally in the manifolds thus opening them up, and also deflashed the plastic in the inlet manifold left from moulding. I spent hours doing these and its unbelievable how many restrictions there are. I have before and after photos to prove it.
I then flowed the throttle body and knife edged the butterfly.
So, its now got piper 633s, properly ported head, flowed manifolds, flowed TB, De cat, Bell and Colville Exhaust, K&N57i and most importantly, verniers giving me properly timed cams. Its now a lot noiser since you last followed it! ;0) Oh, and a PTP PRRT to keep it all cool.
My head gasket went again so I stripped the top end myself and just took my time doing it and made sure I ticked all the boxes re things to check.
i took the head into work to use the hardness tester and the met lab monkey managed to scratch my head so it needed a skim.
i decided to send it down to Dave Andrews for the skim and for him to have a look over it. Whilst there, I asked him to do what he does best to it. It came back looking very very good with the ports properly shaped and flowed and all the water ways opened and cleaned up for greater efficiency.
Due to the indent scratch on the head, Dave had to skim a fair amount off. This, along with a previous skim and using the single Payen Gasket has meant the CR is now well up which will also have had an effect.
I modded the inlet and exhaust manifold myself, basically just removing any weld which which was internally in the manifolds thus opening them up, and also deflashed the plastic in the inlet manifold left from moulding. I spent hours doing these and its unbelievable how many restrictions there are. I have before and after photos to prove it.
I then flowed the throttle body and knife edged the butterfly.
So, its now got piper 633s, properly ported head, flowed manifolds, flowed TB, De cat, Bell and Colville Exhaust, K&N57i and most importantly, verniers giving me properly timed cams. Its now a lot noiser since you last followed it! ;0) Oh, and a PTP PRRT to keep it all cool.
Edited by JTBUSH on Monday 1st June 14:58
I wouldn't keep up with you now!
I'm going to do some work on mine this winter, but i don't want it to be too mad. Only about 150bhp and fairly quiet so i've got to keep the cat and no crazy exhausts or induction.
I guess you've not got a problem with the engine as it sounds sweet, but I'm thinking you can't have much valve/piston clearance with the high lift cams and the head skimmed twice. Is there loads to start with i the K? you've not had any concerns about this? just wondering so i get mine right. Cheers fella.
PM me when you fancy a run out. 9pm one evening this week in the sun to derwent? i was up there last night. flippin awesome....
I'm going to do some work on mine this winter, but i don't want it to be too mad. Only about 150bhp and fairly quiet so i've got to keep the cat and no crazy exhausts or induction.
I guess you've not got a problem with the engine as it sounds sweet, but I'm thinking you can't have much valve/piston clearance with the high lift cams and the head skimmed twice. Is there loads to start with i the K? you've not had any concerns about this? just wondering so i get mine right. Cheers fella.
PM me when you fancy a run out. 9pm one evening this week in the sun to derwent? i was up there last night. flippin awesome....
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