Cam set for 1995-2001 Maxima/I30 now available!
Cam set for 1995-2001 Maxima/I30 now available!
Don't know if this is widely known or not, but the billet cam sets Jim Wolf Technologies has developed for the 1995-2001 Maxima/I30 VQ30DE engine are FINALLY available. Supply is still very limited, but we'll have a couple sets in stock, ready to ship early this coming week.
JWT really took a long time getting these right, using their very sophisticated software to do the design work. The cams are the missing link for opening up this engine. Even forcing air into it has limitations until the cam profiles are taken care of -- now that issue is solved.
Since most people putting in cams have made other significant engine modifications, I strongly advise installing the heavy duty springs and retainer set (below).
Specifications: .415" lift and 256 degrees dwell; these are billet Nissan cams, not regrinds
JWT Cam set price: $1100 (set of 4) + shipping
Cattman part: #CAMG4
JWT Spring/retainer set price: $288 (set of 24) + shipping
Cattman part: #CAMSPRG4
Both parts are available through the Cattman Performance order line, 800.759.9920, M-F 8am-5pm MST.
Brian C Catts
Cattman Performance
JWT really took a long time getting these right, using their very sophisticated software to do the design work. The cams are the missing link for opening up this engine. Even forcing air into it has limitations until the cam profiles are taken care of -- now that issue is solved.
Since most people putting in cams have made other significant engine modifications, I strongly advise installing the heavy duty springs and retainer set (below).
Specifications: .415" lift and 256 degrees dwell; these are billet Nissan cams, not regrinds
JWT Cam set price: $1100 (set of 4) + shipping
Cattman part: #CAMG4
JWT Spring/retainer set price: $288 (set of 24) + shipping
Cattman part: #CAMSPRG4
Both parts are available through the Cattman Performance order line, 800.759.9920, M-F 8am-5pm MST.
Brian C Catts
Cattman Performance
I just wanna see what the results are.
Senior Member
Joined: Mar 2002
Posts: 176
Originally posted by madmax2k
What are the reported gains wih these cams?
What are the reported gains wih these cams?
I'll check with Jim Wolf Technology to see if they can provide a dyno or at least a reasonable estimate and will post something late tomorrow US time. We've just sent a couple out, so there's no data available from us.
Obviously the data would be useful, but I'll point out that the first answer to the question of how much power the cams make is "it depends". Cams are an enabling modification, i.e. they let the car use whatever fuel its getting, coupled with the flow efficientcy of the engine, to a greater potential as they move the power peak ujp the rpm range. The amount of power the engine will ultimately make is largely a function of the other modifications to the engine.
I don't necessarily expect others to just take this on faith, but I'll also note, for those who may not know, that JWT is probably the most noted tuner in the US for the Nissan. They are the ones that Nissan comes to for development projects, and have put some intensive effort into developing this cam set. In other words, we don't know the numbers yet, but you can be sure that this design will maximize the potential of the VQ engine.
Cams are one of the most "serious" modifications you can make to the car, i.e. they're not something that you add just to be able to list it on your signature line.
Brian C Catts
Cattman Performance
Obviously the data would be useful, but I'll point out that the first answer to the question of how much power the cams make is "it depends". Cams are an enabling modification, i.e. they let the car use whatever fuel its getting, coupled with the flow efficientcy of the engine, to a greater potential as they move the power peak ujp the rpm range. The amount of power the engine will ultimately make is largely a function of the other modifications to the engine.
I don't necessarily expect others to just take this on faith, but I'll also note, for those who may not know, that JWT is probably the most noted tuner in the US for the Nissan. They are the ones that Nissan comes to for development projects, and have put some intensive effort into developing this cam set. In other words, we don't know the numbers yet, but you can be sure that this design will maximize the potential of the VQ engine.
Cams are one of the most "serious" modifications you can make to the car, i.e. they're not something that you add just to be able to list it on your signature line.
Brian C Catts
Cattman Performance
Originally posted by rubman
Inquiring mindas would like dynos, or at least expected HP gains. Also any sort of drawacks on the installation. We can call our local speedshops and find out about installation cost. Thanx in advance.
Inquiring mindas would like dynos, or at least expected HP gains. Also any sort of drawacks on the installation. We can call our local speedshops and find out about installation cost. Thanx in advance.
Also don't forget it takes a lot of man hrs to install these babies
Originally posted by Cattman
I'll check with Jim Wolf Technology to see if they can provide a dyno or at least a reasonable estimate and will post something late tomorrow US time. We've just sent a couple out, so there's no data available from us.
Obviously the data would be useful, but I'll point out that the first answer to the question of how much power the cams make is "it depends". Cams are an enabling modification, i.e. they let the car use whatever fuel its getting, coupled with the flow efficientcy of the engine, to a greater potential as they move the power peak ujp the rpm range. The amount of power the engine will ultimately make is largely a function of the other modifications to the engine.
I don't necessarily expect others to just take this on faith, but I'll also note, for those who may not know, that JWT is probably the most noted tuner in the US for the Nissan. They are the ones that Nissan comes to for development projects, and have put some intensive effort into developing this cam set. In other words, we don't know the numbers yet, but you can be sure that this design will maximize the potential of the VQ engine.
Cams are one of the most "serious" modifications you can make to the car, i.e. they're not something that you add just to be able to list it on your signature line.
Brian C Catts
Cattman Performance
I'll check with Jim Wolf Technology to see if they can provide a dyno or at least a reasonable estimate and will post something late tomorrow US time. We've just sent a couple out, so there's no data available from us.
Obviously the data would be useful, but I'll point out that the first answer to the question of how much power the cams make is "it depends". Cams are an enabling modification, i.e. they let the car use whatever fuel its getting, coupled with the flow efficientcy of the engine, to a greater potential as they move the power peak ujp the rpm range. The amount of power the engine will ultimately make is largely a function of the other modifications to the engine.
I don't necessarily expect others to just take this on faith, but I'll also note, for those who may not know, that JWT is probably the most noted tuner in the US for the Nissan. They are the ones that Nissan comes to for development projects, and have put some intensive effort into developing this cam set. In other words, we don't know the numbers yet, but you can be sure that this design will maximize the potential of the VQ engine.
Cams are one of the most "serious" modifications you can make to the car, i.e. they're not something that you add just to be able to list it on your signature line.
Brian C Catts
Cattman Performance
You're tempting me to build a motor sooner. 
I heard i30krab's JWT cams at Stillen's Nissan Day..... from up close I couldn't really hear the lumpy idle, but from far away I did. Ron couldn't pass smog.
I heard i30krab's JWT cams at Stillen's Nissan Day..... from up close I couldn't really hear the lumpy idle, but from far away I did. Ron couldn't pass smog.
Senior Member
Joined: Mar 2002
Posts: 176
Originally posted by Y2KevSE
You're tempting me to build a motor sooner.
I heard i30krab's JWT cams at Stillen's Nissan Day..... from up close I couldn't really hear the lumpy idle, but from far away I did. Ron couldn't pass smog.
You're tempting me to build a motor sooner.
I heard i30krab's JWT cams at Stillen's Nissan Day..... from up close I couldn't really hear the lumpy idle, but from far away I did. Ron couldn't pass smog.
its the nature of the beast, cams = some change in idle characteristics, ranging from a little bit to having to set the idle to 2k! In this case, I understand the impact is pretty minor.
Brian
Brian
Originally posted by 2k1i30
Yea lumpy idle.. thats exactly how my friends bimmer was after the cams, but hes very happy with them.
Yea lumpy idle.. thats exactly how my friends bimmer was after the cams, but hes very happy with them.
Supporting Maxima.org Member
Joined: Nov 2000
Posts: 1,275
computer upgrade
[QUOTE]Originally posted by Cattman
[B]its the nature of the beast, cams = some change in idle characteristics, ranging from a little bit to having to set the idle to 2k! In this case, I understand the impact is pretty minor.
Brian
I heard about these coming out a while ago...and there were some rumblings about maybe offering a computer upgrade that would increase the idle, maybe take out the rev-limiter stuff like that to compensate for the low idle? Any truth in this andyone else heard anything?
Deac
[B]its the nature of the beast, cams = some change in idle characteristics, ranging from a little bit to having to set the idle to 2k! In this case, I understand the impact is pretty minor.
Brian
I heard about these coming out a while ago...and there were some rumblings about maybe offering a computer upgrade that would increase the idle, maybe take out the rev-limiter stuff like that to compensate for the low idle? Any truth in this andyone else heard anything?
Deac
Re: computer upgrade
This is what I hear back from JWT regarding the performance impact of the cams:
"We have not completed our dyno testing for a horsepower number on the VQ cams yet but that should be real soon."
I'd like to think that there's be an ECU upgrade brought forward for the later model Maximas, but I've been going on "soon, soon" for 3 years now... Course then, I'd sort of given up hope on the cams too, so you never know.
Note this, however, the idle is not significantly affected by the cams. It would be good to have the benefits of one of their ECU upgrades, but absolutely not necessary to make the car run at idle.
Brian C Catts
Cattman Performance
Brian
I heard about these coming out a while ago...and there were some rumblings about maybe offering a computer upgrade that would increase the idle, maybe take out the rev-limiter stuff like that to compensate for the low idle? Any truth in this andyone else heard anything?
Deac [/B][/QUOTE]
"We have not completed our dyno testing for a horsepower number on the VQ cams yet but that should be real soon."
I'd like to think that there's be an ECU upgrade brought forward for the later model Maximas, but I've been going on "soon, soon" for 3 years now... Course then, I'd sort of given up hope on the cams too, so you never know.
Note this, however, the idle is not significantly affected by the cams. It would be good to have the benefits of one of their ECU upgrades, but absolutely not necessary to make the car run at idle.
Brian C Catts
Cattman Performance
Brian
I heard about these coming out a while ago...and there were some rumblings about maybe offering a computer upgrade that would increase the idle, maybe take out the rev-limiter stuff like that to compensate for the low idle? Any truth in this andyone else heard anything?
Deac [/B][/QUOTE]
Senior Member
Joined: Dec 2000
Posts: 362
Re: Re: computer upgrade
Originally posted by Cattman
Note this, however, the idle is not significantly affected by the cams. It would be good to have the benefits of one of their ECU upgrades, but absolutely not necessary to make the car run at idle.
Brian C Catts
Cattman Performance
Note this, however, the idle is not significantly affected by the cams. It would be good to have the benefits of one of their ECU upgrades, but absolutely not necessary to make the car run at idle.
Brian C Catts
Cattman Performance
B
Re: Re: Re: computer upgrade
Actually, you can adjust the idle on the Maxima (w/o an ECU change), but I doubt that it will be necessary to do much, if anything.
Brian
Brian
Originally posted by BJGemini
With ALL cams, you have those rumblings at low idle, but dont most cars come with an "idle screw" that you can inc/decrease your idle? Or is that just my mothers hot rod (91 Accord 5 speed)?
B
With ALL cams, you have those rumblings at low idle, but dont most cars come with an "idle screw" that you can inc/decrease your idle? Or is that just my mothers hot rod (91 Accord 5 speed)?
B
Brian, can you please get the details on the specs of the cams, I would like to run them in to desk top dyno 2000.
I need...
Intake Valve Opens (BTDC)
Intake Valve Closes (ABDC)
Exhaust Valve Opens (BBDC)
Exhaust Valve Closes (ATDC)
Also what is the lift on the factory cams?
I need...
Intake Valve Opens (BTDC)
Intake Valve Closes (ABDC)
Exhaust Valve Opens (BBDC)
Exhaust Valve Closes (ATDC)
Also what is the lift on the factory cams?
The lift of the factory cams in a VQ30DE is ~0.338"
I got some time to unpack and straighten out my garage. I found my dial indicator and mag base. I put them on the cam lobes and got readings from 0.335"-0.343"
I should take readings on the VQ35DE next week.
The lift in the JWT cams is 0.415".
I pluged the JWT cam lift info using the factory cam timing information into Desktop Dyno 2000 and the gains were not very good, 2hp & 4tq over the factory lift. Now the cam timing on the JWT cams is different, but until they release that info or we get dynos we wont know for sure if the added duration helps more or not.
Lets be realistic though will we see gains of 15hp or 15tq from just cams, probably not.
Please prove me wrong.
I got some time to unpack and straighten out my garage. I found my dial indicator and mag base. I put them on the cam lobes and got readings from 0.335"-0.343"
I should take readings on the VQ35DE next week.
The lift in the JWT cams is 0.415".
I pluged the JWT cam lift info using the factory cam timing information into Desktop Dyno 2000 and the gains were not very good, 2hp & 4tq over the factory lift. Now the cam timing on the JWT cams is different, but until they release that info or we get dynos we wont know for sure if the added duration helps more or not.
Lets be realistic though will we see gains of 15hp or 15tq from just cams, probably not.
Please prove me wrong.
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