venom ws7

iTrader: (13)

Hey guys !!!
I need some help here please.


Couple of months ago a friend of mine dynoed his C6 ZO6 with these mods:

AR 1.7/8 Headers with Off road X-pipe.
Stock catback.
Fast 102mm Intake (unported)
NW 102mm TB.
K&N CAI.
QM550 camshaft. (great cam with stock idle and awesome drivability)
PRC LS7 Heads ported from TSP milled to 68cc.
Spec stg 3+ clutch and aluminum flywheel.
Tune of course.

The car made 545rwhp 510rwtq with great mid range HP/TQ





After couple of months the owner wanted another 20-30rwhp N/A and 200+shot so I talked to Trevor@TSP and since the owner didnt want the LSX Block for the weight I orederd TSP forged LS7 427ci since Trevor told it will handle the 250shot with the right tune and fuel.
I also ordered Nitrous Outlet plate system from TSP.

(BTW I recommend TSP for everyone I'm always happy when dealing with them and I'm overseas) thanks guys

He also changed the QM550 for RAGIN RACIN Lethal since we always seen great results from it.
Thanks for the fast shipping Shawn

Now for the dyno time same mods above but with stock TB and changed K&N CAI to the new Halltech Killerbee II....

The car only made 536rwhp 500rwtq N/A
Then added 103VP racing fuel for the nitrous

150shot 673rwhp 657rwtq
200shot 744rwhp 773rwtq I love the TQ

A/F Ratio is perfect at 12.8 for the N/A runs and 11.5 - 11.8 for the nitrous.


N/A




150shot




200shot



Keep in mind guys all the N/A runs were on 90-91octane pump gas and 90 - 95 F whether The nitrous numbers were great but N/A were not that good we thought with the bigger cam and better CAI the car will gain 20-30rwhp

I already ordered B&B Fusion catback and will also order LMR 102mm TB
Hoping to see 560+rwhp .

BTW Lethal cam is awesome to drive the drivability is great too...

I know the stock catback/stock TB and now maybe the Rotating Assemblies is a little heavier than LS7 but I really thought the car will be close to 560rwhp even with the stuff above


Edit dyno video
http://www.youtube.com/watch?v=G9WZaEloTM8



Sorry for the long thread....
PLEASE LET ME KNOW WHAT YOU GUYS THINK

Thanks in advance
Hussam.

LS6

nice combo

BAMF

Is the new cam more of a nitrous cam or what? it seems to work good on the spary but not as good N/A as the old setup.

MikeG

iTrader: (33)

Agreed.

kumar75150

Both those cam dynos numbers seem to be what guys are getting with stock heads.

gnx7

iTrader: (28)

I have a QM550 cam in a built LS7 setup. How would you compare the power curve/idle quality to the Ragin Racin' cam?

Is the new block resleeved to handle the nitrous? That 250 shot looks like a fun time.

MM98

iTrader: (13)

^This and having the heavier forged rotating assembly.

BLK02WS6

iTrader: (2)

Was it knockin on the 200 shot at 4800 RPM and up? Something going on there and it isn't good... 150 shot was clean though...

Paint_It_Black

iTrader: (1)

Was this engine bolted in and taken right to the dyno? in TSP's defense, rings are going to take a little bit to seat, and could have a little blow by, especially harder nitrous rings if it was built for lots of nitrous use. Those tend to have a larger gap than an N/A application as well.

smok'nZ

iTrader: (160)

if they want every little pony get the 102 ported

Engine_HP

iTrader: (1)

are the Compression Ratio same ?

venom ws7

iTrader: (13)

Nice combo but nice numbers ...
LOL




Its not a nitrous cam Shawn @ Ragin Racin have done a lot of 560+rwhp N/A with the same cam..




543rwhp dyno was with QM500 its a little bigger than stock LS7 Cam so the numbers were great..

But with Lethal cam I'm really surprised.




The block is not resleeved..
QM500 had very awesome drivability I can't really compare it with Lethal since the Lethal dyno numbers we have are not the best.....

But the drivability so far on Lethal is great for the cam size..
I think the QM550 will be a little better than Lethal under 3500rpm but anything higher than that Lethal pulls hard.




I've seen a lot of forged ZO6 making over 570rwhp I really dont think thats the problem..




No knocking at all actually the timing was really low on that run...




No the car had over 1200miles I thought about that too..




How much do you think he will gain from porting the Intake?? 10rwhp ??
The numbers will still be low.




Yes

kmracer

iTrader: (1)

who installed the cam?

Redcorvette2000

iTrader: (5)

Those n/a numbers are pretty low i would be really pissed....

180ls1

iTrader: (4)

well i have heard rings for nitrous motors will not make the same power as ones that are built for n/a setups. Also a nitrous tune for that big shot will not be ideal for making power n/a but it will be safe on the bottle.

Chris05ssTruck

iTrader: (9)

Numbers are low for sure. Also on the bottle the TQ. spikes right off the hit, then just goes straight down....and in a hurry. The graphs have NO smoothness to them.

choopak

im making the same HP on motor and with my 200 shot maybe +/- 3hp.

edcmat-l1

iTrader: (10)

I'd go back and look at the logs. Something happened at 4800, and it looks like KR. Whether it is or not, something happened, and it ain't nice. Actually the whole run isn't real pretty. Might need to close the plug gap up a little more.

slow trap

iTrader: (22)

i'm no expert or anything and don't know the cam specs on either cam but it looks like the new rr cam is dropping off power alittle earlier than the qm cam. if it is bigger unless it's on quite a bit tighter lsa or advanced some shouldn't it carry alittle longer ?

anheuserbusch08

iTrader: (11)

numbers look really low from what i expected....