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#1
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4L80E TPS Sensor Mounting For a Quadrajet
I recently installed a 4L80E in my 1970 GTO and have gotten to the wiring stage. I am using a US Shift Quick 4 Gen 2 controller with the HGM TPS kit 5. I see no way that this bracket can mount. It hits the intake runner with be bracket on the throttle body plate and even if it were elevated off of it, would not line up with the throttle linkage. There are only videos and instructions for the Holley and Edelbrock with zero pictures or reference to the Quadrajet (even though they claim it works for all). Does anyone have a Quadrajet setup with a TPS I can see? I don't see any possible way for this to work without extensive modification.
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1970 GTO: Atoll Blue, TH400, 400 +.060, small chamber Ferrea big valve fitted # 15 heads, Summit 2802 cam, Iron intake, Cliff Ruffles 850 cfm qjet, Hooker headers, 2.5 mandrel bent exhaust, Race Pro mufflers, 3.73 Safe-T-Track. |
#2
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I use that controller on a couple 4L80 installs and have had the TPS setup for it from Hughes.
On thing I can't be sure of from your pics is that it looks like the Q-jet is sitting right on the intake with a thin gasket. It would likely help your situation if you at least used a 1/4" thick gasket (always recommended) or possibly even a 1/2" thick spacer to move the carb up away from the runners a bit for more room. That's just my first thought from seeing what you are working with. |
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#3
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Quote:
Simply flipping that long two piece connector will provide some additional offset towards the carb (more hassle when adjusting it's length though). Want even more offset? Sandwich an appropriately thick shim between them, with some longer SS screws. Would have a slight dogleg appearance when viewed from above but the QJ's secondary linkage shouldn't interfere as long as the TPS is mounted low enough. |
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#4
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Article here that shows an aftermarket TPS mounted on a Q Jet, as well as Edelbrock, and Holley. Written just for people using electronic controlled transmissions on early cars
https://www.streetmusclemag.com/tech...arburetor-tps/
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Brad Yost 1973 T/A (SOLD) 2005 GTO 1984 Grand Prix 100% Pontiacs in my driveway!!! What's in your driveway? If you don't take some of the RACETRACK home with you, Ya got cheated Last edited by Sirrotica; 04-23-2023 at 01:01 PM. |
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#5
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Thank you, guys. The picture in the article looks like the put the bracket above a spacer and used a stud on the rear mounting bolt. I have some studs in the mail. I'll let you know what I cobble up.
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1970 GTO: Atoll Blue, TH400, 400 +.060, small chamber Ferrea big valve fitted # 15 heads, Summit 2802 cam, Iron intake, Cliff Ruffles 850 cfm qjet, Hooker headers, 2.5 mandrel bent exhaust, Race Pro mufflers, 3.73 Safe-T-Track. |
#6
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Call them and ask.
You can always notch the runner or grind the bracket if it's the correct bracket. The pic in the article shows a washer under the bracket, not a spacer. If you were to space it out, it would be on the carb side of the bracket, not between the bracket and the sensor. The linkage would still line up that way. .
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. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
#7
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If just using it for logging the add on bracket is where the detent cable goes for a TH350.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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