What did you do in the garage yesterday?
Discussion
Sounds like you are going the whole hog mark.
Judging by other peoples modifications over the years, throttle bodies don’t give hugely different performance gains compared to a triple plenum. You will get cleaner running with the throttle bodies and possibly slightly better mpg but there is a cost not just in the throttlebody assembly but setting up with her filters and the general logistics of getting the set up correct. A triple plenum is just a bolt on the fair and of course cheaper!
Don’t get me wrong, they are a great thing and look fantastic!
Actual performance difference is marginal. If I remember correctly Ian Roses 5.3 Griff on throttle bodies had a couple more BHP than my 5.5 with a triple plenum. My 5.5 though had more torque.
I look forward to hearing about the modifications in due course. Good luck.
Judging by other peoples modifications over the years, throttle bodies don’t give hugely different performance gains compared to a triple plenum. You will get cleaner running with the throttle bodies and possibly slightly better mpg but there is a cost not just in the throttlebody assembly but setting up with her filters and the general logistics of getting the set up correct. A triple plenum is just a bolt on the fair and of course cheaper!
Don’t get me wrong, they are a great thing and look fantastic!
Actual performance difference is marginal. If I remember correctly Ian Roses 5.3 Griff on throttle bodies had a couple more BHP than my 5.5 with a triple plenum. My 5.5 though had more torque.
I look forward to hearing about the modifications in due course. Good luck.
baconsarney said:
Mark, have you done a 'before' dyno? (and will you do an after) I've toyed with fitting ITB's for a while now, love the idea but struggled with the cost vs return.... (currently have ACT triple TB's on)
Thanks,
Richard
Hi Richard, a before Dyno wasn't really possible, see below, that's how it was when i bought it Thanks,
Richard
The engine is currently sitting in my van to go off to JE Developments
x 7usc said:
Hi Peter,
Yes the engine is toast anyway so im kind of starting from scratch with it, I've not made set in stone plans yet as i need to get it to John Eales and sit down and decide what we're going to do with it, its currently feeling very sorry for itself
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Mark, You may need to get those cylinder bores honed before you fit new pistons.....Yes the engine is toast anyway so im kind of starting from scratch with it, I've not made set in stone plans yet as i need to get it to John Eales and sit down and decide what we're going to do with it, its currently feeling very sorry for itself
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Just trying to be helpful here
phazed said:
'kin Ella Derek!
Oh and I overestimated the time I have. The meeting is the 7/8th so just 11 days. I tried pressing a new piston on the rod and pin myself using a 6 ton press and some ingenuity but am not happy I haven't damaged it. A racing mate James Murray is posting me to assembled 4.6 rods and pistons by special delivery today so watch this space!
rev-erend said:
Kokkolanpoika said:
Just start fitting wild cat heads. Need longer pushrods and lash caps to get better geometry.
If you want, I can photograph and measure the length of my pushrods when I change the cam on mine in a few weeks time.And i do not want to buy some custom lenght valves. Hole package need to be build again then if want 100% best results. Stupid designer..
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