Just wondering... how do the Vipers with pipes make out head to head with an SRX?
journeyman
Active member
Alot of variables to consider. I know the SRX's are more reliable head to head. With proper setups to both machines some will say the Viper does better. It all depends on each machine. The Viper needs good cooling via a better head application and a rear exchanger. There are also several brands of pipes out there for it. I had Simons CPR's on one season with a Speedwerx head and a rear exchanger installed with Havy Hitter clutching. It was alot faster than my stock Viper which is very respectable stock. The thing was it was also very finicky on air temperature. When conditions were good like 15 deg. F. it was an animal. When it got to 32 deg. F or above it ran like a pig and drank fuel like one too. On a cold day........0 deg. F or less you better lookout....it might go boom......mine did.
RIVERRUNNER
Active member
It all depends on set up and conditions!!!!
They are close enough that in reality it would come down to the tuner. That said, the piped Viper should be the one out front. With triple pipes it's a trail ported version of the SRX motor and therefore has more horses.
YamerDown said:
Thats pretty well what I thought...it does show how good Yamaha got it with the SRX! Also it may indicate how much an effect "long travel" suspension has on these sleds that they are so close.
unchained
New member
Has anyone put SRX cylinders on a viper and then custom fit SRX pipes into the chassis? That to me would be the ultimate machine....
unchained said:
I think it would be better to use the Viper cylinders as they are equivilent to a "trail ported" version of even the 2000-2002 SRX cylinders.
Yes it has been done. Think BETHEVIPER was the master of that Frankenstein. I've never seen one side by side with an aftermarket triple piped Viper, but I'm sure they would be very close. I hope to hook up with Concept Carbon this year and do exactly that. He's got the SRX pipes on his Viper.unchained said:
Viper with SRX cylinders, pipes and CDI gets much better fuel economy. That said, you need to chop the hell out of the belly pan to get those pipes in so you'd need to consider that before you try it.
YAMMIEGOD3:16
Active member
STOCK FOR STOCK THE VIPER ACTUALLY HAS MORE PORTING THAN THE SRX. IN A RACE TO ANSWER THIS . ALL IN SET-UP. 3:16 (yammie tony)
staggs65
Moderator
so from the other side would viper cyls on an srx with the srx heads, exhaust etc make any worthwhile gains?
Triple X
New member
staggs65 said:
You can't use SRX exhaust manifolds on Viper cylinders, the SRX has round exhaust port were as the Viper is oval shape. You would have to modify up some exhaust manifolds, it could be done.
unchained
New member
This was what I remembered about this from a few yrs back. It seems when I was researching this back in the day and found it made more sense to just swap cylinders....Triple X said:
mopar1rules
Active member
if you put viper cylinders on the srx and use the srx heads, you will need a viper head gasket, as there are no grooves for the o-rings.
No, for all the reasons already mentioned (different head gaskets, different exhaust ports). I also think some of the improved porting is related to the cases (someone correct me if I am wrong). Also which CDI would you use?staggs65 said:
It's not as simply as bolting on the other pieces and for all the time and money it would take to customize/fab it all together you could have had your SRX cases and cylinders "lake" ported with money left over for some new clutch components.
mopar1rules
Active member
yammerdown, the vipers and srxs share the same case, so the improved porting isn't in the case, its in the ports....transfers and boost, if i remember right.