we had the v6 turbo car on the dyno today @ 10 psi

with the problems we had car only put down 268.0 rwhp and 367.6 ftlbs @ 10 psi

the 2 issues we had were

#1 had no ignition advance and timing was locked out to 8* btdc
#2 prolly not really 2 but related to one is the motor would not rev up over 5,100 no matter how long we stayed on the throttle

im going to revert timing control back to my standalone instead of the stock ecm and am heading back to the dyno this wensday for accurate pulls

ill have the vids of all 4 pulls and the pics of the duno sheets posted up in a lil bit

 

Those are some pretty impressive numbers !

Any idea why it wouldn't pull over 5100?

 

yeah its cause the timing was locked at 8* btdc without being able to advance the timming the motor just wont rev,as well as the timing being that far retarded will also kill off alot of power

fter talking with the guy at the dyno and doing some quess work we estimate that once i fix the timing issue the car should make about 80-100 rwhp more then it did and an additional 80ftlbs of tq with no other changes to the setup

so i should be able to hit my 450rwhp goal at high boost once i get this combo squared away

im going back to the dyno this comming wensday @ 2pm

 

When you go back can you take some vid action?
Never heard a turbo'd v6 camaro before.

 

ill have vids from today up soon hopefully, nother member of the boards came out and yook vids for me today so im just waiting for him to get them up for me

 

Sounds good I love eye candy !

 

vid
http://videos.streetfire.net/video/Turbo-31-Camaro-Dyno-Day_641050.htm

one the second pull after i let off u can her an air hose rupture under the dyno.we all thought for sure that i kicked the rods out of the motor,i shut the motor off soon as i heard it but after about 30 seconds we relized it wasnt the car making the noise

 

sweet vid.. question though. is it the dyno or is your drivers side rear rim bent?

 

im not sure, i dont think its the rim, i think the slicks i have on the car are out of round,or i could possibly have a bent axle.ill find out before i go back on wensday though

 

 

Woo about wet myself that sounds so beefy!
How many pulls do you get? and how much is it to get dyno'd where you went.

 

i ended up making 4 pulls, when i went yesterday they had a dyno day so it was only 60 bucks,normally its 75$

 

Thats not a bad price for 4 pulls. When I was in japan, They have a dyno shop a few miles away from the base, 200,000 yen to do 2 pulls "thats like 200$"

 

the guys there is really cool, it was supposed to be 3 pulls and i prolly could have got a 5th in but there was no real point with the issues i was having

 

Hopefully you square away your issues What hp and tq you aiming for ?

 

when all is said im done im shooting for 450rwhp if i can hit that tq numbers should be in the 525-600 ftlb range

 

You have a insane machine there

about how much doh$$$ have you dished out for your project ?

 

just under 2,200-2,300 over 4 years

 

That big hairdryer's really kicking out some numbers. I'm impressed you've been able to do as much with the iron heads as you have. Can't wait to see the real numbers.

 

yeah it deff is , im expecting to bring that hp number up 80-100rwhp hp once the ignition is fixed @ the same boost level , i have no idea how much more tq its gonna make when its fixed

so much for iron heads being crap i quess

 

Woohoo! Iron!

 

Not bad for having boat anchors on your block :P

You know, I predicted ~275whp to Ben when this whole deal started, but didn't think i would see that kind of TQ.

 

No, they're still crap. That's why I'm impressed. LOL

 

iron head port has more velocity then the 3100/3400 heads, can't speak for the 3500 stuff though. i really cant wait to see what the hp/tq number is gona jump to once the ign is fixed

im a lil pissed about the timing issue but nothing i can do about it now, i thought my apointment to go back was today its actually tomorow.But im gonna have to call and cancel as i still have some repairs to do,including replacing that bent ds axle

should be going back mid next week

 

ah... so it was a bent axle... that sucks.

 

yeah stock axles + spool + street driving isnt a good combo, the axle was actually twisted up pretty good. got a new set ready to go in though.

funny thing is i never felt it on the street no bounce or wobble to the car at all going down the road.the dyno is what made me catch it

 

Gen 3 is Gen 3, just because it's a v6 doesn't mean GM put any less thought into them. Until you can hold a velocity meter to the botom of the valve and tell me otherwise...

don't you thin the v8 guys would LOVE to bolt a set of LSx heads on a Gen1 V8? Well, we have that advantage, and I'll tell you what...

You give me that 260 cam back I sent you, I will send you a set of 3100 pistons/rods (free) that will compliment the Gen2 60 degree heads you have, and re-dyno. You won't look back, promise.

12sec with a FWD aluminum heads in a FWD car, put that in a RWD body it will be much faster...

 

just cause the heads are later model dosent mean there any better, hell i can show u heads that look beautiful and have high flow numberst but have no velocity and are total dogs.

one day ull actually learn flow numbers dont mean everything

maybe u should take a close look at some gn heads and ported gn heads that only flow 150 cfm, those guys go into the low 10's with them

but anyways im done arguing with you

heres the spark table im going back to the dyno with,

ill be using that table upto 21 psi on 93 pump gas/ no meth

 

Good luck!

 

when are you goin back?

 

i dont if u know alot about gen 1 sbc but there are gen 1 sbc heads out there that would smash lsx heads.

 

not sure i have a fe wmore things to fix and need to tune a lil more first.
might hit up e-town tommorow morning for some tunning though

 

.... smash would be an understatement, it's more like annihilate;

 

Port velocity is a function of flow restriction. Too little and it'll run like crap down low but make fantastic numbers up top, too much and it'll choke up top (regardless of foced induction) but make excellent torq numbers. Port velocity is very important to a na engine but not as big a concern for forced induction because the system isn't relying on vacuum for air delivery. However high boost levels to deliver a given power level is usually a good indicator of an overly restrictive induction tract.

 

well ive been away for a lil bit (vacation) but ill be heading home on monday

ive goten the car fixed before i left so when i get back im going to rehit the dyno finally

hopefully i can put down the 400 rwhp and 500_ftlbs the motor should be capable of

 

Can't wait for the results. Will give me something to shoot for in the future!

 

The 3100/3400 on a flow bench will make iron heads look bad but the 3500 stuff is amazing. But with a turbo shouldn't you want more top end flow? And I think that because the aluminum head burn more efficiently couldn't you run more boost on them?

I have seen some very impressive numbers from these engines and I wouldn't consider doing it unless I could get the oil tubes on #5 and #6 at the crank.

 

Kinda. You have to take the valve size, throat size, port volume and minimum cross sectional area into consideration (and in the case of the Gen 3 heads, valve angle vs lift). Cross sectional area is what causes velocity, and if you take a real close look at the Gen3 lower manifolds, you will see what I mean. The runners actually get smaller right before the entrance to the head, causing the air to move a lot faster.

Now if you can use texture in the runner/port to cause a boundary layer, you can have large volume and still maintain velocity


Of course there are, but I'm talking about a set of stock heads...

The 3500 heads IN STOCK FORM flow over 125cfm more than the iron 60* heads. That's an excellent upgrade for something you can pull out of the junkyard.

That's like saying there are Gen 1 SBC heads that outflow Vortech, but not without a lot of work

Not only that, but it's not about flow either. You want to get in a discussion about fluid dynamics, flame front, chamber shape, swirl etc?

There is no comparison with the iron to 3500 heads when you take the rest of the design into consideration. We have been able to run as much a 13.6:1 SCR on pump gas with the uber efficient 3500 chambers.

Wait until you guys can see the 3900 heads I have here :P


Yeah, but those aren't heads you can get at your local wrecker for about $400 are they now, Rob? :P

 

picked up a new project car for 300 bucks

95 grand prix with the 3100, cars in great shape but it has a blown headgasket,

well the guys said he put 2 new gaskets on it so im willing to bet its just an leaking manifold gasket

ill find out soon enough though

 

True, you can't get these heads from the local bone yard, however, they were meant to show that the LSX cylinder head simply isn't as supreme as many people like to believe. The SB2.2 heads come with a heavy price tag, but hey, you get what you pay for, and then some....

 

SB2 heads have been around for quite a while. The ls heads are a really good head, but a 23* head can flow close to it.

On a side note, Lethal you want this intercooler?

Fuel system just about done in the RX7, if shawn would send his butler up to finish it I could actually get a pass or two...

 

Hey Pete, yeah I'll take the intercooler. Shoot me a PM....

 

well im setting up for a new dyno appt.
i moved upto upstate ny a few months back and havent done anything with my car since its still in jersey.

but i just schedualled the car to be shipped up here in 2 weeks.

since the last time ive run the car ive picked up some new parts

i have a p-trimed t76 turbo to replace the 60-1 unit i previously dynoed with.
also due to the fact i wounded the old block and couldnt get a replacement my only option was to goto a 3.4 block, so i have a fresh 3.4 shortblock to install
and the last and final change will be going to a mechanical 276/272 grind cam.

car should put down some really nice numbers this time around

 

.... I must have woken somebody up from their coma.

 

lol