Lust4Thrust

My new set up is running, however we are having difficulty with the alcohol set up. With 9lbs of boost and the alcohol off it makes 523 hp and 623 ft-lbs. With the alcohol on, it made as much as 607 @ 15 lbs, and 730 ft-lbs before breaking the tires free on the dyno (with 3 people in the trunk on 315 G1SD3s. So the alcohol is currently off per the tuners advice, as it made it too difficult to tune accurately.

Currently have alcohol injector downstream of IAT tapped into throttle body ahead of throttle blade, downstream of the MAF. There isn't much room between the intercooler and the throttle body.

Those running alcohol on these how do you have your system set up?

Thank you

Vehicle specifics
98 Camaro SS (MAF set up not speed density....yet)
402 LS2 aluminum (Callies compstar crank and rods, wiseco boost pistons 9.5 CR)
AFR 225 cc heads
94 octane
Borla exhaust (electric cut out closed)
Moser 12 bolt
PST drive shaft
SMC alcohol kit
APS twin turbo (base kit)

ninetres

iTrader: (35)

My car has no maf, but mine is downstream of the IAT, and about 10" in front of the TB.

ddnspider

iTrader: (26)

those numbers sound pretty weak for that setup to be honest,even without alcohol.

JMBLOWNWS6

iTrader: (17)

On 12 psi I am making over 700 thru an auto and a nine inch. Those are dynojet numbers and the TC is unlocked. I feel you should be making more.

c0ncEpT

iTrader: (4)

There must be a lot left in that tune because my friend made over 600 threw an auto with a APS kit and 347 on 10lbs...

OUTLAWZ RACING

iTrader: (9)

Correct me if im wrong but the base kit comes with the smaller turbos? Also my meth is about 3 inches from the Tbody.

eb02z06

iTrader: (18)

This is a much larger motor so it needs more boost to make the numbers. We had to turn the boost controller to the lowest setting to get an accurate pull. The car will make an easy 700+ but first we need some tires to get the car to hook. With the current Alky kit the fueling was going crazy.
I would opt for a Alky control dual nozzle kit, ditch the MAF and put in a 2 in bar SD tune-this way you can turn the boost up or down to your liking. I would also put on a 90MM TB and the new Weiand intake or a LS2 intake. Another thing to add would be a wideband guage-ditch that Autometer piece and replace it with a AEM.

It's unfortunate that the season is coming to a close here and the weather is getting too cold but get some good sticky tires and we'll switch over to SD in spring and let it all hang loose!

MY99TAWS6

iTrader: (3)

Hmm also was thinking it should be higher numbers. Is this car an auto or m6. if m6 could be slipping clutch? If auto well they do read lower and another three pounds would maybe bring it up a fair bit too. But if you get no traction on the dyno then would think that effects things as well. So this is just alc injection kit? not e85 of course .That e85 seems to work incredible. Also no mention of cam specs. And better intake might help.etc.

calongo_SS

iTrader: (7)

Those numbers seem way low. I'm not sure what eb02zo6 means that a larger cube motor needs more boost to make the same numbers as a smaller motor. It should take less, but maybe I'm misunderstanding what he's saying.
Anyway, I'm using an alky control single nozzle with the nozzle in the silicone coupling between the intercooler & the tb (no maf).

WJ MARK

iTrader: (7)

How much timing are you running?? I would think you could run a little more boost without the meth with low timing. I mainly use mine for fueling and octane, but im around 12-13 psi. going from 18-20 deg. gave me like 30 hp.+ the meth definately helps though.

Im also maybe a 10" from the TB down stream of iat and MAF

Mr.Big

VERY IMPORTANT... you must spray after the MAF, like you already are... But you MUST spray before the IAT sensor... The IAT sensor is what you use to tune the Alky, along with the AFR... So the Alky must spray across the IAT sensor...

Lust4Thrust

Car is a stock M6,
ingle nozzle SMC progressive unit.
stock throttle body,
stock intake,
60 lb injectors.
Manual Boost controller

I have 325 MT DRs, on bogart rims and we'll try that in the spring

With the 98 computer what changes need to be made to get a SD tune to 2bar as suggested?

Is the AEM gauge a wideband gauge or a gauge/boost controller?

Would tuning it with cutout open make much difference?

eb02z06

iTrader: (18)

Guys I'm not even sure it's making 9 psi-the car's not even maxing out the stock maf. And remember this is 402 cubes with a LS1 intake. Remember it's not going to make a whole hell of a lot of power on motor with the turbo's hanging off the manifolds and breathing through a LS1 intake with 9.5:1 CR.

There's no room with the APS kit to put the Alky nozzles after the MAF and before a IAT sensor.

The car will and would of made alot more power-just need to turn up the boost and hope the tires stick!

eb02z06

iTrader: (18)

Hi Frank, right now it won't make power because I can't turn it up on the dyno-the cutout will amke a difference but your not going to find like 100 horse or something.

Get the AEM wideband guage and leave the 5volt refrence lines exposed-this way I just tap into your guage to retune in SD.

KWIKKAR

iTrader: (15)

Yeah you need a Ls6 or Fast intake or something is wrong. My 402 with 13psi did 732rwhp with two bad turbos. I have a Ls6 and ported TB for sale if your interested. Pm me. Thanks Jordan

mterveen

iTrader: (2)

which wiseco's did u use (part number please)? thx.

MY99TAWS6

iTrader: (3)

I think we saw 50hp gained by cutout in one previous aps dyno..and for sure intake is not great. And what about clutch...could it be slipping as well?

I had to get custom wisecos to get 9.5 to 1. They were ordered by Canadian Performance.

Again we are not totally sure what you are saying "Remember it's not going to make a whole hell of a lot of power on motor with the turbo's hanging off the manifolds and breathing through a LS1 intake with 9.5:1 CR."

Unfortunate we can't compare numbers on my build. It being a 408 with afr 225s and m6. But also of course have fast 90/90 combo ,electric cutout on ypipe and catback setup with fairly mellow cam..lift around 580 or so with the 1.8 rockers.

What cam are you running ,cams can make a big difference to power also.
I still think if can get the turbos up to 15 or so I should be able to hit 800 to 850rwhp on my setup or might be sending them off to place Kwikkar sent his for upgrading.

RealQuick

iTrader: (14)

Peak power being at 4500rpm and then holding horizontal the rest of the way is a sign of a restriction.

MY99TAWS6

iTrader: (3)

'alcohol on, it made as much as 607 @ 15 lbs, and 730 ft-lbs before breaking the tires free on the dyno (with 3 people in the trunk on 315 G1SD3s. "

Ok we know the intake tubes suck shut at like 12 so if you didn't remove them for dynoing you found most of the problem. Now take them off and dyno it at 15psi again. Still figure you need better intake for sure. Not sure what cam you have.
open cutout can give a fair bit..
And then bit more tuning maybe..some more timing..etc. Should come up nicely but we already know its not the 402 or the turbos JM has made more at lower boost with no alc and others have made similar hp on their autos .Jms car is auto as well figure an extra 5% loss there.

TNTramair

iTrader: (15)

i made 615rwhp on only 5psi (couldnt load the dyno so it didnt see the 7.5psi) so the fact of it being a 402 isnt the case. im running stock l92 heads and stock l76 intake on my 402 with lower compression than yours...9.1:1...speed density tune though. so your numbers definetly seem a bit low. id probably check into that before tryin to figure out the alcohol issue. not to mention the fact that peak power comes in at 4500 and than levels out. is it losing Boost somewhere?? something doesnt seem right.