As you're aware the blocks are stronger than our 109 blocks. If I hadn't started my 109 rebuild I would've opted for a 3800 build. I may still try in future if I have the funds and can get my hands on a decent roller. Blocks are not an issue, I have an 96 and 97 block that have been machine. The 97 was aligned honed with ARP hardware, studs and fasteners for the cross-bolted mains. Good luck.
Who's ready for some 3800 power?!
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Jon Early
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Thank! Yeah, I'm sure if GM put these engines into a sporty American RWD car to begin with, the Buick clubs would be a lot stronger today. Oh well! It's not too late to show everybody what these underdogs are made of.
GBGN1
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Just wanted to finish this thread from years ago for people that don't follow me on Facebook .
So a slower day thought I’d share a little dyno experience this last Saturday at Powerfab speed. My 87 T with the custom 3800 series 2/3 engine with a smaller Precision 6466 Gen 2 T4 on it. Finally got a base dyno on it after many years of working out bugs. Not bad result for first time out with limited time. At 27 psi did 621.5 HP at only 6200 rpm with low timing. 93 octagon with M1 injection. Much more to come. The power keeps climbing I honestly think it will hit 700 at the tire with more seat time. A larger turbo would make a lot more power but this is a street car. Thanks to Cameron Arp for all the help on the DYNO and Powerfab here in Houston for the Dyno Use.
Future plans is turning the wick up and seeing what the 6466 will do and possibly throw my 6870 4 bolt from my other car and see what it will do.
There is a company in Australia that makes a Holley Ram type intake on an Ecotech intake. Like a holley hi-Ram. Like to try that as well. Anything over 700 at the tire is a win. I'm sure the engine could make some serious power . A lot of work over the years with multiple set backs and life. But it was worth building.
So a slower day thought I’d share a little dyno experience this last Saturday at Powerfab speed. My 87 T with the custom 3800 series 2/3 engine with a smaller Precision 6466 Gen 2 T4 on it. Finally got a base dyno on it after many years of working out bugs. Not bad result for first time out with limited time. At 27 psi did 621.5 HP at only 6200 rpm with low timing. 93 octagon with M1 injection. Much more to come. The power keeps climbing I honestly think it will hit 700 at the tire with more seat time. A larger turbo would make a lot more power but this is a street car. Thanks to Cameron Arp for all the help on the DYNO and Powerfab here in Houston for the Dyno Use.
Future plans is turning the wick up and seeing what the 6466 will do and possibly throw my 6870 4 bolt from my other car and see what it will do.
There is a company in Australia that makes a Holley Ram type intake on an Ecotech intake. Like a holley hi-Ram. Like to try that as well. Anything over 700 at the tire is a win. I'm sure the engine could make some serious power . A lot of work over the years with multiple set backs and life. But it was worth building.
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GBGN1
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John Larkin
Sublime Master of Turbology
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It looks right at home. Congrats, talk about sticking with something, that's tenacity.
This gives alot of options for the n/a cars.
This gives alot of options for the n/a cars.
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Great work. That 64 has more in it and 700 to the wheels wipes out most cars on the street.
GBGN1
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Had some Machine shop woes over the years and life got in the way . Plus this was the 1st 3800 or 3.8 buick with a Holley efi on it according to the Holley engineers I worked with at Holley to get it running. Long process!
BEATAV8
The Engine Whisperer
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That looks really good in there. Most excellent!
GNVYUS 1
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Whoa this is unique, I don't wanna read 22 pages but there must've been a good reason to ditch the 109, maybe the 3800 is more reliable etc?
The torque comes in really late, like literally climbing past 5200rpm, are you ramping boost in later on purpose or is it not all in until like 5000rpm?
I'm sure there were unique headaches you pulled off alone, congrats
.
The torque comes in really late, like literally climbing past 5200rpm, are you ramping boost in later on purpose or is it not all in until like 5000rpm?
I'm sure there were unique headaches you pulled off alone, congrats
.
GBGN1
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Torque coming in late is because how I was hitting it on the dyno. Eased into it until 3500 rpm. It is higher.Whoa this is unique, I don't wanna read 22 pages but there must've been a good reason to ditch the 109, maybe the 3800 is more reliable etc?
The torque comes in really late, like literally climbing past 5200rpm, are you ramping boost in later on purpose or is it not all in until like 5000rpm?
I'm sure there were unique headaches you pulled off alone, congrats
