Jump to content

Pump gas 421 opinions


Recommended Posts

I've had my 2002 banshee for years now with cpi inframes, vforce reeds, jet kit, air filter, and stage 3 porting by trinity. My father builds race engines for cars/boats so I ripped my perfectly running engine apart, sent the jugs and head to trinity for porting and we gave the cylinders a quick puff hone. Threw that together with new wiseco pistons and have been ripping around the streets on and off for years. Now i wanna build a 421 pump gas engine to drop into a 2005 se banshee I just picked up.

 

My question is which combo do I go with? Serval or cheetah? I wanna run pump gas and I really don't run it off road cause I have 3 plates in my right shoulder and I can't be bouncing all around. Which combination is better for feeling the raw horsepower just rippin around on the street?

 

I looked at both kits on F.A.S.T. Which I've heard Jeff is a really nice guy and very knowledgeable. Is it worth me trying to save a couple hundred bucks ordering a wiseco rotator direct and just the jugs from Jeff or just don't bother messing around with wiseco stuff?

 

Sorry for all the typing but I'm kinda new to the serval/cheetah engines.

Thanks guys

Dan

Link to comment
Share on other sites

Get a cub. Any motor can be a pump gas motor.

True statement but bottom end will be less than desirable with the cub on anything less than race gas. Been there done that. Great idea but will end up costing you more in another set of domes and pipes after you realize the downfall of a cub on pump gas.

 

Get a serval and enjoy it with a port job.

 

On the other hand, your goal for a non trail bike will defeat the purpose of a serval and a pump gas cub also defeats itself. So just do a 4 mil stocker with the port work you desire.

 

Either way its your money and your time....

Link to comment
Share on other sites

Okayyy... Who is good to deal with? What kind of hp numbers will the cheetah make compared to the serval with the same supporting bolt ons?

Call all of the site sponsors, talk to all of them, you'll know who you want to do business with after talking to them ... some will talk to and explain everything to you, others will not answer the phone

Link to comment
Share on other sites

Thanks guys. I hear it all the time... You don't use your quad for what it's made for!!!

I got a 25.5 cert 68 Camaro with a 540, an 04 cobra, 08 gt500, 11 carbon le z06, 06 hayabusa... I just like to go fast!!! I'll call around and see who rubs me the right way lol

Do you have any preference pasty?

Link to comment
Share on other sites

If you don't plan to do any "putting around" and are just going to hop on and go wfo then get the cheetah cub. The serval has lots of low end but falls short on top compared to the cheetah. If you plan to do lots of go wfo for a short distance and stop and go and stop and go and stop and you want to get on the pipe quick and hard then I would do the serval

Link to comment
Share on other sites

I can't see any reason to run a Cub on pump gas. It will never run to its full potential.

 

I think you're better off building a stout 4mm Serval if you want to stay on pump gas.

 

With CPI and 35mm PWK, they can be in the 70s pretty easily.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...