Thread: The build has begun VE-T

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2010-08-13 07:06:37

#41

Sinnerman

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Originally Posted by Phat_sx

old thread i know but can someone help clarify this? im always looking to learn something new....

Static is cranking pressure/idle pressure in chamber? and actual compression is what? cylinder pressure during boost?

so correct me if im wrong but higher cr in the ve-t will give you better low end response. but in boost the lobes switch and bc of the overlap "lowers" the once said high cr?

Interesting question......

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2010-08-18 15:42:36

#42

DDSC Performance Online/offline status of DDSC Performance is unknown

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Originally Posted by Phat_sx

Sorry by actual compression i mean dynamic.

here is a good link that explains it

Dynamic CR

if you cant be stuffed reading. here is the important bit;

Dynamic Compression Ratio, on the other hand, uses the position of the piston at intake valve closing rather than BDC of the crank stroke to determine the sweep volume of the cylinder.

So on a ve+t set up you effectivly have 2 dynamic compression calculations that remain constant. low cams and high cams

This gives you more tunablity in regards to detonation as you can change the actual running cr at the rpm you choose.

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2010-10-08 01:37:46

#43

ross.cottrill Online/offline status of ross.cottrill is unknown

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bump for an update please!!!

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2010-12-12 15:38:29

#44

jpsr20det

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Some updates on tusday .. some things has change ... now 12,5 cr this is the final motor.
I should be done in 2 weeks then to the dyno.

Regards.

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2010-12-12 16:26:08

#45

ashtonsser Online/offline status of ashtonsser is unknown

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Nice to see you still at it. lol

Cant wait to see whats to come from you. You always do it big.

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1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
JMS Racing tuned to 716whp, 423wtq at 29psi
10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

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2010-12-12 18:20:57

#46

cory

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Looking forward to this!

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2.0 218/153- 12.9@106
2.3 270/190- 11.6@116
2.4 285/210- 11.5@118
Retired...

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2010-12-14 22:43:51