Ok guys I have a cammed c5z and I ordered a Tony mamo ported 102 intake and nw throttle body . I was very excited and then got some bad news from who I was going to have tune it. He said with the mantic clutch (what I have) combined with the 102 throttle body it will not idle, he just had it with another car and knows of another case with the same problem... claiming the mantic flywheel is so light and it just doesn't work together


So is it the famous "find a new tuner" or do any of you guys have this problem. He said it's doable with a different clutch but the mantic will not idle... I know the 102 is a slight challenge but I was thrown off guard and he assured me it's the clutch, so I really want other opinions please.

 

I apologize in advance that I can't answer your question, but are people really picking up power on a cam only Z with not only a Fast 102, but a ported one to boot?

 

Well according to Tony, I would definitely see a power gain, both from the intake and even more so ported... Is it needed? Absolutely not.

More of a future investment for me, as I'm also doing a blower and who knows what down the road.

 

I do not have a 102 but my brother does on his 03Z. He also has a custom spec'd cam, a under drive pulley(unsure of the size), and of course the usual; injectors,springs,CAI(vararam), and the other necessary things when it comes to a cam swap. It also had a 102mm Throttle body, I believe it was a Nick Williams.

His car also has a LS7 clutch kit including the flywheel. For what its worth it made 455/427 or something like that. It pulls hard and does slightly edge me out in 03Z with 432/417 out a cammed Z with the stock LS6.

Sorry I digress, his car is on a speed density tune at the moment. He has purchased and installed a LS2 throttle body and the harness to make it work so that he can run it. It is not hooked up yet as he just hasn't got it retuned.

It was like this when he purchased it and it has a wideband and the A/F ratio is always well within the acceptable range at all throttle positions and even idle.

If I remember correctly the tuner/builder who is one of the absolute best in my opinion in the entire country(holds a record in the standing mile with a twin turbo C5) he also used to work with a forum vendor on this site before venturing out on his own, said there could be an issue with the idle running the 102 and the LS7 clutch. I don't honestly know how the LS7 compares to the Mantic, but it sounds like your tuner may be right. I'm not sure and don't understand how it can make a difference but I guess that it can. Hope you get it all figured out.

 

I ask because I am actually kind of interested in one

 

I may be posting mine for sale, if I can get my money back I will get rid of it, toss the blower on and save myself a headache.

 

They are a great looking intake, and would likely be more beneficial to a guy with larger cubes/bigger heads/cam than I'm going to have.

It's funny, people on here freak out over the fact that a Vararam is $240, yet on a bolt on Z (up to cam only I'd say) the Vararam is worth more power than a Fast 102 intake at like 8 times the price.

If you can figure out a way to make that intake work, I'll bet you'd make more power with the blower installed, but if it's about freeing up some cash to finish the blower install, that makes sense too.

Good luck either way.

 

I might be wrong here, but I thought the potential idle issues with that combo were almost completely related to the NW 102? Something about them not working on C5's because of the older computer.

 

That's what I thought and is true. But apparently according to this guy the mantic clutch specifically mixed with the 102 throttle body will not work. He said it's easier on a c6 to tune because of the age like you mentioned.

Most guys say find the right tuner, plenty of people who have the 102 throttle body. But he's making it sound like my clutch will make it impossible

 

Well if you trust/like your tuner what about just selling the NW and getting another TB? Seems to be the cheaper option, and you can still benefit from the new intake.

 

I don't have a mantic clutch, but try an LS2 throttle body. You'll need the adapter as well but i'm assuming you knew that. I just installed a Fast intake and it was either a nick williams or ls2 for me. Ls2 was better on my budget so that's what i went with.

 

Yea the ls2 throttle body is another option. I can easily sell the 102 TB to a c6 guy.

 

I have a simular setup, 102/102, tfs225, 232/234 cam, ATI 25% OD balancer, Monster Clutch and their light weight 18# flywheel.

I had no issues at all getting my car to idle. I did however have some issues getting it to return to idle with stalling, but adding a good bit more air to the throttle cracker table solved the issue. Idles at 22* base timing and drives like stock.

 

Thank you, that flywheel is even lighter than mine so that's good to hear. Sounds like the right tuner is my answer or at least one willing to put the effort in to make it idle.

He mentioned the other car stalling so maybe that's all it needs

 

I am curious to know with all these money spend on cam, intake, tb and tune, why not go the SC route for a few more bucks? Is it a money thing or you guys just like the n/a drivability. I know people that are making 600whp on just SC and full exhaust.

 

My car came with the cam, I'm doing the blower. Some guys like n/a, some guys want a big cam, it's all preference. The easiest to make power is to slap a blower on, but that's not for everyone either.

 

I been on the fence myslef for awhile now to either go for the n/a or sc. I am all about making power, i am not bias of FI or n/a. I want the best bang for the buck per say. It seems like every time i am ready to pull a trigger on a cam set up, my buddy that owns a shop tells me to wait a bit longer and get a sc kit .

 

I picked up a little over 30 hp over the ls6 intake but this was at 6300+ so I guess if it's worth it would depend on your cam and how high you want to spin it but I had planned on doing heads later so I wasn't concerned if it lost any

 

I guess I got lucky and bought my NW 102 tb early. It came with a c5 actuator motor.

 

If you do the fast 102 and 90mm ls2 TB get a Vmax reducer ring for your fast, made my idle much easier to tune out. I thought it was a scam but for $55 I didn't worry about it to much, well it did make a difference for sure around idle, AFR heads/BTR stage 4 cam/Fast 102/90mm ls2/LT's and Catless X is the combo fwiw.