32 valve LT1?
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From: Orlando
32 valve LT1? So ive been doing more research on building the right LT1. Just curious is araos engineering 32 valve heads worth it on an LT1? How good is the flow vs normal Grade A+ ported heads? When i first heard of this i thought it was a joke.
I know of ONE person who ever ordered a set, a guy from Australia IIRC...and after getting the run around for like a year he never even got a pair and had to fight to get his money back.
A few sets were delivered but I never heard of a car making a pass down the track with them. If I remember one guy had things getting close and then the garage was robbed and things like the sheet metal intake were stolen.
Another guy was trusting a complete hack to build a engine with them. Would expect failure to be covered up and success almost impossible given the builders track record, so nothing to look forward to there. Been ongoing for a LOT of years.
Another guy was trusting a complete hack to build a engine with them. Would expect failure to be covered up and success almost impossible given the builders track record, so nothing to look forward to there. Been ongoing for a LOT of years.
What are your goals?
With the kind of coin you're talking for a 32v setup, you can go SB2.2 with takeoff race parts and make 750hp NA on a 383+. Hell, it may be cheaper.
Either way you will need a lot of custom parts, which = $$$.
With the kind of coin you're talking for a 32v setup, you can go SB2.2 with takeoff race parts and make 750hp NA on a 383+. Hell, it may be cheaper.
Either way you will need a lot of custom parts, which = $$$.
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From: Orlando
My goal is a Insane 357ci solid roller LTx. I hear all this trash talk about LTx's that makes me want to ask since we have reverse flow cooling, does that necessarily mean we can run higher compression ratios on pump gas then your average LS or SBC?
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Only running car I know of took Reher Morrison to make the set up work, that should say some thing in it self right there. It was a blower Comp Trans Am from Dallas, the numbers weren't extremely impressive, more so suggesting of the D1 it had on it was maxed out because the car wasn't making a ton more power then 23* AFR headed D1 LT1 cars at that time. Bobby Simpson also had a set, never finished the car.
Last edited by BizZzatch350; Aug 30, 2012 at 10:23 PM.
I take back the power part, reread the article since it's been a few years, D1X making 800 at 13#
http://www.highperformancepontiac.co.../interior.html
http://www.highperformancepontiac.co.../interior.html
How much is "Insane"? A 357 is going to need a shitton of RPM to make big power, which = fancy lightweight valvetrain, which = money.
I think it would be badass and sound like hell broke free and is roaming the street...but keep in mind there are cheaper ways to make power then a high strung SR 357.
Did he ever get the thing running? I think he ended up selling the engine or heads and that person kind of faded away?
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From: Orlando
I take back the power part, reread the article since it's been a few years, D1X making 800 at 13#
http://www.highperformancepontiac.co.../interior.html
http://www.highperformancepontiac.co.../interior.html
Yes Im planning on using stock crank & rods to save some cash for a top notch valve-train, and some compression.
Most guy's don't have the Bank Roll like he does, that build is a lot of money and little give a hoot of value per dollar.
I think the following a pretty nice set up that would be able to hold it's own well, if you were dead set on building a high HP Lt1, a setup like this would be a lot more cost effective then a unicorn headed motor.
from Jose at FI
Well for the folks that have called on the engine specs for this car...here they are...
355 LT1
2 bolt block-4 bolt splayed conversion
Eagle crank
Eagle rods with ARP bolt upgrade
JE pistons
custom turbo cam 218/218 .544/.544 with 114LS
Advanced Induction LT1 fully ported heads
Advanced Induction LT1 ported intake
The car made 1012rwhp/909rwtq with the T88 and 24psi, and 987rwhp/922rwtq with the 76GTS all through the 6spd tranny from D&D.
http://forcedinductions.com/images/timeslip.jpg
Jose
355 LT1
2 bolt block-4 bolt splayed conversion
Eagle crank
Eagle rods with ARP bolt upgrade
JE pistons
custom turbo cam 218/218 .544/.544 with 114LS
Advanced Induction LT1 fully ported heads
Advanced Induction LT1 ported intake
The car made 1012rwhp/909rwtq with the T88 and 24psi, and 987rwhp/922rwtq with the 76GTS all through the 6spd tranny from D&D.
http://forcedinductions.com/images/timeslip.jpg
Jose
Car is a 93 Formula LT1 full weight at 3680lbs. Here is the entire combo...
355 , eagle rotating assembly with JE slugs
ported stock heads w/stock valves
ported LT1 intake
baby turbo cam (only 218/218)
12 bolt rear w/3.42
Gen 6 DFI
6spd-street twin clutch
Gen 1 LT1 PTK kit with 76GTS /3" downpipe
13psi on 93 octane pump gas.
The intercooler was straight ice/water, IAT reached 78 degress at end of pass. Their are no dyno results, since I don't think he has been to the dyno. Either way the track results speak for themselves.
355 , eagle rotating assembly with JE slugs
ported stock heads w/stock valves
ported LT1 intake
baby turbo cam (only 218/218)
12 bolt rear w/3.42
Gen 6 DFI
6spd-street twin clutch
Gen 1 LT1 PTK kit with 76GTS /3" downpipe
13psi on 93 octane pump gas.
The intercooler was straight ice/water, IAT reached 78 degress at end of pass. Their are no dyno results, since I don't think he has been to the dyno. Either way the track results speak for themselves.
Well this will make you really sick then....he turned up the boost to 18psi and dynoed the car.
Made:
828rwhp@5700rpms
878rwtq@4300rpms
He then made it to the track, the results show the car is making good power.... His runs peaked at 20psi, on race fuel and ice water in the Intercooler.
60ft-1.73
1/8th- 6.70@117.70
1/4-10.13@150.29
Made:
828rwhp@5700rpms
878rwtq@4300rpms
He then made it to the track, the results show the car is making good power.... His runs peaked at 20psi, on race fuel and ice water in the Intercooler.
60ft-1.73
1/8th- 6.70@117.70
1/4-10.13@150.29
60ft 1.58
1/8th- 6.63@111.43
1/4- 10.17@139.90
Last edited by BizZzatch350; Aug 31, 2012 at 03:51 PM.
