75mm throttle body - Dodge SRT Forum
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post #1 of 18 (permalink) Old 11-25-2012, 10:26 PM Thread Starter
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75mm throttle body

I installed a custom built intake with a 75mm ford tb. The tb has a 3 wire ford tps and a 2 wire ford iac. after wireup everything works like its suppose to, however, when i'm looking at the tps sweep on scantool its going from 0.8v closed throttle to 4.5v wot. I know that 0.8v closed is normal but 4.5v wot??
old tps only went as far as 3.8v
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post #2 of 18 (permalink) Old 11-26-2012, 03:07 AM
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pictures would be useful

could you post up some photos of the set up?
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post #3 of 18 (permalink) Old 11-26-2012, 03:15 AM
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So you ARE still using the Ford TPS and IAC? Or no?

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post #4 of 18 (permalink) Old 11-26-2012, 04:09 AM
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Why use a ford TB when there are plenty of aftermarket TB's made for our car?
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post #5 of 18 (permalink) Old 11-26-2012, 04:29 AM
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Size and price.

PG86100 using AutoGuide App

84 Plymouth Horizon Sold
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00 Honda Civic Si Sold
01 Lincoln LS Sold
03 Dode Neon sxt Sold
RIP 04 Silver SRT4
05 Orange Blast Neon SRT4
93 Viper RT10
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post #6 of 18 (permalink) Old 11-26-2012, 08:57 PM Thread Starter
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LinkLow : yep using the ford IAC and TPS
the TB is 75mm BBK. intake is custom built

Tunerlover3 : Price!! Price!!

Paid $200.00 CDN
Images below









Last edited by crazzinezz; 11-26-2012 at 09:25 PM.
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post #7 of 18 (permalink) Old 11-26-2012, 09:19 PM
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It shouldn't make much difference as far as function goes. Sure is a big throttle body for a mild sized turbo.

If it still has a smooth transitions between open and closed loop fueling and the car performs how it should, I don't see a problem with it.

The factory PCM only requires 2.3 volts from the TPS to enable WOT power enrichment, so as long as you are over that then you shouldn't have problems at WOT.


Send me a log


Last edited by LinkLow; 11-26-2012 at 09:33 PM.
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post #8 of 18 (permalink) Old 11-26-2012, 09:58 PM Thread Starter
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Quote:
Originally Posted by LinkLow View Post
It shouldn't make much difference as far as function goes. Sure is a big throttle body for a mild sized turbo.

If it still has a smooth transitions between open and closed loop fueling and the car performs how it should, I don't see a problem with it.

The factory PCM only requires 2.3 volts from the TPS to enable WOT power enrichment, so as long as you are over that then you shouldn't have problems at WOT.


Send me a log
Throttle response in unreal, I see a big difference in how the car is performing.

Also With the new tital WG I installed, I'm still playing with the MBC trying to find a happy medium 3rd gear 4500 rpm spiking 22psi afr 11.2 and clutch is starting to slip lol what's next. I'll send you a log in a couple of days.. You think we might have to do any re-scailing with this intake? Stage 2+ clutch on order

T3/T4 Garrett bb 50 Trim - S2 Crower cams - P&P - Rev oversize valves - 888 Injectors - Fuel return set up - Tial Bov - Tial 38mm WG - 75mm TB - Custom Intake Manifold - Walbro 255lph - 3" exhaust with e-cutout - CAI - ACT Stage 3 clutch - 3bar map + tip
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post #9 of 18 (permalink) Old 11-26-2012, 10:12 PM
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What is done to the manifold? Pnp On the runners and just regular aluminum sheet for the tube ?

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post #10 of 18 (permalink) Old 11-26-2012, 10:14 PM
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Quote:
Originally Posted by crazzinezz View Post
Throttle response in unreal, I see a big difference in how the car is performing.

Also With the new tital WG I installed, I'm still playing with the MBC trying to find a happy medium 3rd gear 4500 rpm spiking 22psi afr 11.2 and clutch is starting to slip lol what's next. I'll send you a log in a couple of days.. You think we might have to do any re-scailing with this intake? Stage 2+ clutch on order
All depends on how the log looks.

Also, if you haven't already paid for the clutch, you might look into something a little tougher than a stg. 2

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post #11 of 18 (permalink) Old 11-27-2012, 12:46 AM
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Originally Posted by tunerlover3 View Post
Why use a ford TB when there are plenty of aftermarket TB's made for our car?
DCR builds some intake manifolds for 89-93 mustang TB to save $$


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1997 dodge neon (srt swap)
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post #12 of 18 (permalink) Old 11-27-2012, 06:48 AM
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^ please never change your sig <3
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post #13 of 18 (permalink) Old 11-27-2012, 06:55 AM
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^ please never change your sig <3
as long as all the mods dont mind


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post #14 of 18 (permalink) Old 11-27-2012, 09:44 AM Thread Starter
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Quote:
Originally Posted by triangles View Post
What is done to the manifold? Pnp On the runners and just regular aluminum sheet for the tube ?
Tube is either 1/4" or 1/8" thick haven't measured it but looks thick. pnp on runners.

T3/T4 Garrett bb 50 Trim - S2 Crower cams - P&P - Rev oversize valves - 888 Injectors - Fuel return set up - Tial Bov - Tial 38mm WG - 75mm TB - Custom Intake Manifold - Walbro 255lph - 3" exhaust with e-cutout - CAI - ACT Stage 3 clutch - 3bar map + tip
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post #15 of 18 (permalink) Old 11-27-2012, 09:48 AM Thread Starter
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Quote:
Originally Posted by LinkLow View Post
All depends on how the log looks.

Also, if you haven't already paid for the clutch, you might look into something a little tougher than a stg. 2
Was looking to get this
Centerforce DF037672 - Centerforce Dual Friction Clutches - Mobile SummitRacing.com

I can get it through my local supplier for about $560.00 cdn

T3/T4 Garrett bb 50 Trim - S2 Crower cams - P&P - Rev oversize valves - 888 Injectors - Fuel return set up - Tial Bov - Tial 38mm WG - 75mm TB - Custom Intake Manifold - Walbro 255lph - 3" exhaust with e-cutout - CAI - ACT Stage 3 clutch - 3bar map + tip
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