Shes Been Dyno'd - Page 2

**kenholland** · 4-27-06, 8:42

Quote:

Originally Posted by garfy1981

I would have thought the vris points were set right as im using a kl36 ecu

That may well be, but if you look at the large dip at 3,250 - 4,000rpm - that definitely shouldn't be there and would indicate to me that #1 is opening too late and allowing the power to drop too much first.

If you use MSI switches you can fine tune the opening and closing points to wherever you need them to smooth the curve out. For that particualr point I would drop the #1 VRIS opening back to 3250 instead of 3500.
(See the bottom of this page: http://home.btconnect.com/ken.holland/probemx/p_m14.htm)

Good luck.

Ken

**Fastest95PGT** · 4-27-06, 8:44

Interestingly.. 3250 is VRIS 1 opening on an A-Spec DE IM.

**garfy1981** · 4-27-06, 13:32

oh yes i see what you mean now!! interesting???.......i presume the vris can be set up on a megasquirt fastest95pgt ??.
ummmm.........very interesting.
what do you guys think......exhaust before megasquirt or megasquirt before exhaust
i would have thought exhaust first, but the bhp line doesnt show any signs of be restricted at high rpms as it should tail off towards the end if restricted shouldnt it ??
cheers

**Fastest95PGT** · 4-27-06, 13:42

Absolutely exhaust first gets my vote!

And yes, Megasquirt can be made capable of giving you full control of your VRIS points.

**garfy1981** · 4-27-06, 14:18

cheers fastest, exhaust it is then!! hopefully ive got some 2nd hand stainless steel headers on the way so that will save some £££s.

**kenholland** · 4-28-06, 2:38

Yep, exhaust first.

You may then see that dip disappear if it brings the power back up...

4-27-06, 8:44	#17 (permalink)
Fastest95PGT Join Date: Nov 2001 Location: In ur house killing ur d00ds, MaPOC Age: 28 iTrader: (3)	Interestingly.. 3250 is VRIS 1 opening on an A-Spec DE IM.
	Jeff ~ 1995 PGT ZE-T MSnS-E v3 (317whp @ 8.5psi / 275whp @ 5.5psi) PARTING A LOT OF 2g STUFF

4-27-06, 13:32	#18 (permalink)
garfy1981 Join Date: Sep 2005 Location: Kent, UK Age: 27 iTrader: (0)	oh yes i see what you mean now!! interesting???.......i presume the vris can be set up on a megasquirt fastest95pgt ??. ummmm.........very interesting. what do you guys think......exhaust before megasquirt or megasquirt before exhaust i would have thought exhaust first, but the bhp line doesnt show any signs of be restricted at high rpms as it should tail off towards the end if restricted shouldnt it ?? cheers
	2.5 Ze straight neck, blitz intake, mazdaspeed engine mounts, fidenza flywheel, CM II Clutch, KL-36 ecu, Magnecor 8mm Leads, Battery Relocation. Speed hut dials, bilstein suspension set up. Powerspeed 2.5" stainless mandrel bent exhaust, hotshot headers, hi-flow cat. Custom 4 pot big brake conversion. Dynod 188.8whp 183.3ft-lb 99Ron Super Unleaded

4-27-06, 13:42	#19 (permalink)
Fastest95PGT Join Date: Nov 2001 Location: In ur house killing ur d00ds, MaPOC Age: 28 iTrader: (3)	Absolutely exhaust first gets my vote! And yes, Megasquirt can be made capable of giving you full control of your VRIS points.
	Jeff ~ 1995 PGT ZE-T MSnS-E v3 (317whp @ 8.5psi / 275whp @ 5.5psi) PARTING A LOT OF 2g STUFF

4-27-06, 14:18	#20 (permalink)
garfy1981 Join Date: Sep 2005 Location: Kent, UK Age: 27 iTrader: (0)	cheers fastest, exhaust it is then!! hopefully ive got some 2nd hand stainless steel headers on the way so that will save some £££s.
	2.5 Ze straight neck, blitz intake, mazdaspeed engine mounts, fidenza flywheel, CM II Clutch, KL-36 ecu, Magnecor 8mm Leads, Battery Relocation. Speed hut dials, bilstein suspension set up. Powerspeed 2.5" stainless mandrel bent exhaust, hotshot headers, hi-flow cat. Custom 4 pot big brake conversion. Dynod 188.8whp 183.3ft-lb 99Ron Super Unleaded

4-28-06, 2:38	#21 (permalink)
kenholland Ex-Mod Join Date: Dec 2002 Location: Dorset, UK iTrader: (0)	Yep, exhaust first. You may then see that dip disappear if it brings the power back up...
	Ken