so i take it no one has pics of a nizpro plenum to suit a VL RB30T engine would be interesting to see inside one of them plenums cya

the nizpro plenum is the same as the bresciani one shown earlier. just says nizpro on the top instead..

Always loved ISLEEPS CPC plenums. They look the goods and have the performance to match. If I had 1g, that would be my first choice. Keep up the good work mate. Hilly Great thread too guys. Good to see a thread not running right of track as usual.

i take it a brescian is a copy of a nizpro plenum

They bought the rights off them mate to cast that manifold.

thanks BOOSTnWGn , price has been adjusted down a little, they are actually below $1000 at $950, only $50 more expensive than a few weeks back. the insides of the bresciani plenum are different to the nizpro. the nizpro has the bellmouths criss-crossed similar to a v8 supercar design but in a straight line if you know what i mean.

criss cross arangment mmmmmmmmm do you have any pictures of the nizpro manifold on the inside cya

So how are the Bresciani bellmouths arranged? Edit- just looked at page 2 of this thread....lol.

GTS1963 heres a pic of the SPP "Coffin" style manifold, and yer it is absolutely massive!

They look **** IMO, just looks like its not sitting right, sure they work though...

anyone done any back to back testing??? id be interested to see if a manifold swap made any difference on anything less than 400hp or so, torque especially.

there has been some between the spp and rajab. rajab less power but more torque than spp on a car making around the 300-330rwkw

Quote: Originally Posted by ISL33P there has been some between the spp and rajab. rajab less power but more torque than spp on a car making around the 300-330rwkw that would be my car........have a look at the graph on the second page, kyle & myself were keen to try one of your plenums on my car........but i got sick of screwing around spending money on crap that i wasn't going to use

in other words, sick of being the test dummy

yep

SPP manifold looks strange hey, obviously works though cmy747- i don't blame you, it would be nice to try them all and see how they perform, but in the real world this doesn't happen cheers darren

neither would i when you get nothing in return

so thats all that is around for RB30 engines as far as plenums go would be nice to have a PLENUM SHOOT_OUT on either engine dyno or chassis dyno of all the plenums out there were the same one engine with a specific turbo and all the same guidelines followed to see which plenum perferms where. The only changes is the Plenum it self if anyone knows of any type of test that has been performed where just a plenum has been swapped lets hear about it Yeah i know there could be too many veriables but at least the test will be in some form of control where else where everyone that makes plenums claims mine is better than yours cya

Quote: Originally Posted by ISL33P there has been some between the spp and rajab. rajab less power but more torque than spp on a car making around the 300-330rwkw ok but thats fairly high horsepower... say u were chasing under 300rwkw, would an aftermarket manifold have a signifcant (and it has to be signicant as we're talking $1000 on a manifold) improvements over the stock or even n/a mani?

i would have to say yes, i have proven it with my old car, using same bosst and just a simple change of the plenum. more hp, but even more noticable was the 15-20% increase in torque which blew me out.