Most people tuning don't use a knock sensor b/c they aren't reliable and w/ soooo much noise in that V-10 motor as-is the sensors don't work that well.
take me along and i'll teach you to tune by ear!
PS - thanks for coming out to help w/ Chris's car yesterday! it was good to see you!!
JD
I've run everything from 8.5:1 up to 11.5:1 in TT cars. figure this: 3% power loss for every point of compression (so the books say). in a viper, 8.5 is a bit lethargic. 9.0:1 or 9.1:1 is a good number. If you aren't running water/meth and this is 100% street, go with the 8.5:1 and suck it...
When John Donato had my tranny in the shop for some upgrades, he plumbed two -8 connectors into the tranny. then you can get an electric scavenge pump, a cooler, and you are good to go!
Joseph
A particularly 'Good' source of information sent me over some non-confidential pictures of the '08 viper heads. He also put them on a flow bench and gave me the #'s.
Wow.
Truly impressive. Look at those ports!!!
Flow #'s below pics. Thanks Greg Good!!!
Flow #'s are:
Lift...
Stock block and stock crank aren't a bad way to go. billet cranks go for over 4k and have a loooong wait time. dealer buy price on a gen2 crank is over 2500. just under 1500 on a gen3 crank (which will work in a gen2 if modified for the crank position sensor). Todd @ Arrow will sell you a...
Not necessarily, but over time, it isn't uncommon for a paxton car to have its snout snap off of the crank. and in a recent case, a snout snapped even before the car ever had any load on it.
JD
Stock pulley is in the stock position with the ROE. ROE runs off of the stock pulley driving an almost-stock 7-rib belt. Now picture adding 100ft-lb of TQ in the UP direction to a 4" extension out of the crank... that is what a paxton is doing. sometimes more... sometimes less. now imagine...
The paxton only flows ~1000cfm. to get 25psi on a 488cid motor, you would need to have a smaller-than-stock set of heads to create that much backpressure. I made 965rwhp on 15psi (the blower couldn't put out any more air than that!) with stage-3 ported heads and all the starts lined up. oh...
even the black fades too. Anyone who warranties viper coatings has some brass b@lls. I don't think i've ever seen a coating NOT fade or discolor on these cars. hum... I'll send you 6 sets! :p
It all depends on your goals. If you aren't going to run the car past 5k then don't bother with a solid lifter set-up.
The most important thing you can do is to set your goals and then set the plan to achieve them. Pulling a motor, doing maincaps, stroking it, porting heads, etc... it's...
Generally speaking, your engine builder will have an opinion on cams. the solid lifter set-up is quite cool if you are doing a complete build. If you were going for a higher revving motor, though (say, to build a motor that revs to 7k+rpm) you'd not want to stroke the motor at all. but...
nah... but we don't respond well to (pardon the pun) snake-oil out here. spill the beans on the heads... new casting or stock re-ports? inquiring minds certainly want to know!
JD
SVS's car uses a special tranny. like no other.
As for a quaife, Taylor Racing is the primary reseller of quaife for gen2's in the US. Anyone else who sells quaife in the US is usually reselling Taylor's stuff. Ask for Craig (owner) and he'll take care of you.
JD
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