New to 350's but not to Nissan's. used to turbo 4bangers, but want to try the s/c route. I searched and found the Dsport G, and Booger. Also, does anyone sell/fabricate a cog setup for these cars?

 

cog setup on ALL PROCHARGERS ...no belt slip EVER

 

if it doesnt slip , the bracket flexes and belts break on the procharger sc

i do have a vortech t-trim blower with the bracket and 2 smaller pulleys for sale....pm me or see the classifieds

 

Usually people are content with 400-450whp though, even on a built block, but 500+whp is completely possible with the vortech IMO.

There's only a handful of people here with built engines to attempt it. There's quite a few people with 450-480whp though - even on the stock block

 

DSport was making 18psi and did 505whp . in the feb. mag it says 480whp

 

I think I read somewhere that he even hit 510whp at some point

he was trying to get a vortech setup that could rev to 8000 rpms and IMO that probably wasn't the best way to do it - or at least I think it'd probably be dramatically more difficult to do because of belt slip and break issues. I think he said he'd always break belts at like 7400 rpms.

The belt is spinning faster at more rpms, no matter how much power/boost is being made.

 

thats why they added the exrta bracket infront of the other , plus some other reinforcements so there wasnt any flexing . 18psi at redline shouldnt be a problem . we will see when i get it all together.

there is a little update on it , in feb.'s mag . thats the last you will see of it .

 

the bracket does NOT flex and belts dont break.they r almost 3/4inch thick.... i have a few buddies with other cars also boosting 20psi + and the brackets r fine...thats just heresay ...

 

every kit is different

 

ask Trefling from KC . He was making 15psi with his ATI SC and belts kept breaking . He was trying to push the SC to its limits . Sharif did some work on his car also . And ended up putting a TT on Treflings car for him .

 

how much power/boost will the standard Vortech head unit support, i guess it is limited to the 2.87 pulley? ~11psi?

as well as the standard Procharger head unit , could you put a D1SC head unit on the Z? i know of some bad Z06's running a D1SC

 

you can always go with a smaller pulley like a 2.62, but belt slipping will become more of a problem with higher boost and a smaller pulley to grab at.

after that, the way to get more power is going to have to come from the engine itself or a bigger intake and exhaust, or ignition

 

The blower that comes with the kit is getting 12psi with the 2.87 , the T-trim will flow more air and more psi . I was able to get 13 to 14.9psi with the 3.12 . The belt slipping is a problem and keeping it from making more .

 

has any one gotten a 2.62 pulley on and got it to not rub or grind on the jackshaft ?

 

^^^
With that small of a pulley wouldn't you over spin the impeller?

 

rabbid is running the 2.62 pulley, but that's about all I know



all the smaller pulleys overspin the impeller
the 2.62 would spin it 10k rpms higher. You're only at that high of an rpm for such a brief time though towards redline

 

We've tuned a couple of built motor SC's. One was an ATI, and the other Vortech. We really struggle to get good sustainable power up top. IIRC, Trefling's car made about 470whp without nitrous, and 500whp+ with. The other car I tuned made about 450whp make. It's a challenge...to say the least. I think Sam hit 500whp at GTM with one, but they kept eating belts and had other issues. We did a bracket reinforcement mod, and still didnt help. Within 20 pass on the dyno, the belt would snap.

 

Wasnt Rabbid [ john ] working on Mean Gene's car ? and thats the one with the 2.62 on it ? Gene sold off his parts or the whole car , cant remember . I didnt know Rabbid had a car with a Vortech on it also

 

yeah this is why I think the GTM stroker kit and reving to the stock redline might be a good setup.

The stroker kit will orient the natural torque of the engine to shift downward more since bigger displacement is less efficient at high rpms, but great at low and mid rpms.

The T-trim blower seems to really add a lot more boost up high. It might add half a psi down low and 3-4 psi up high so in a way, it'll counter how the stroker kit changes the natural powerband of the engine to shift lower slightly. Add in some headwork and bigger valves and the top end will really start to scream.

The issue though will be belts slipping and possibly breaking, but if Booger can run 15 psi and not snap belts left and right, I think the stock 6600 rpm redline is probably safe on the vortech as far as belts go. Otherwise IMO a stroked engine with a T-trim and 2.87 pulley is about the most you'll ever get out of a vortech setup from what I can guess

No one knows yet about how much boost TIMROD's belt solution will hold, but 2 or 3 people with 10-12 psi who have done it have said it's solved any slipping issues they've ever had. The stock vortech belt system sucks as far as grip. The three really long stretches of belt along the top going around that top/middle idler pulley and then the blower pulley, is just asking for a sucky belt setup

Didn't DsportG35 go straight to the custom belt setup he made? I don't read Dsport magazine often enough to know, but he seemed to only snap belts at 7100+ rpms regardless of boost - and only with his new different belt setups to my knowledge.

I don't think he tried doing TIMRODS belt method - which looks much better to me than the stock belt setup.


yeah I dunno what his car is. I was PMing him back in july about his 2.62 pulley and he seemed to say everything was running fine with it, just need a smaller belt

 

i would have to look up derek's thread about his car . but i think he said they kept breaking belts above 7100 or 7200rpm without the extra bracing . thats why he sent it back to vortech