Search found 653 matches

by totta crolla
Sat Mar 30, 2024 10:50 am
Forum: TECH: 4A-GE ENGINE
Topic: AE86 MAP sensor values
Replies: 4
Views: 1098

Re: AE86 MAP sensor values

Brilliant!
Thanks for this and l'm happy the values l'm using are close to ideal.
I will use 3.64v - 100 kpa as shown.
by totta crolla
Fri Mar 29, 2024 4:03 am
Forum: TECH: 4A-GE ENGINE
Topic: AE86 MAP sensor values
Replies: 4
Views: 1098

Re: AE86 MAP sensor values

The AEM ecu requires max and min voltages plus max and min pressures, it does not have a learning facility. I used a MAP enabled AE86 specific Freedom ecu to read the pressures and the AEM to show the voltages, the voltages are not affected by calibration changes. A Mityvac was used to obtain the va...
by totta crolla
Wed Mar 27, 2024 8:44 am
Forum: TECH: 4A-GE ENGINE
Topic: AE86 MAP sensor values
Replies: 4
Views: 1098

AE86 MAP sensor values

These are U.K AE86 MAP sensor values (unless anyone knows any different :?: )
Min volts 0.87
Min kpa 21

Max volts 3.80
Max kpa 114
by totta crolla
Fri Mar 22, 2024 5:59 am
Forum: TECH: Corolla AE86
Topic: GTS brakes
Replies: 5
Views: 1193

Re: GTS brakes

You will find some in Ireland
BUT
You will have to try hard to get them shipped.
by totta crolla
Fri Mar 22, 2024 5:57 am
Forum: TECH: 4A-GE ENGINE
Topic: Injector firing
Replies: 10
Views: 2758

Re: Injector firing

What a great 'find' that diagram is for me! Takes a little thought to get your head around the timings but it is invaluable, thank you. Where's it from?? Thanks jondee86, can count on you to always deliver such great diagrams & pics, besides all them words! All of the 'regulars' on here are fan...
by totta crolla
Tue Mar 19, 2024 1:53 am
Forum: TECH: 4A-GE ENGINE
Topic: Injector firing
Replies: 10
Views: 2758

Re: Injector firing

Indeed l am desperate not to halve the injector pulse for the reason you mention. Probably over the summer l will try to adapt a proper crank trigger wheel to my power steering pulley as this seems to be the best way forward. I know there a a few companies that make a RWD P/S crank trigger pulley bu...
by totta crolla
Mon Mar 18, 2024 1:32 am
Forum: TECH: 4A-GE ENGINE
Topic: Injector firing
Replies: 10
Views: 2758

Re: Injector firing

What a great 'find' that diagram is for me! Takes a little thought to get your head around the timings but it is invaluable, thank you. I will check again but I'm fairly sure my loom is set to inject all four at once (we have already had this conversation..) but my engine from the factory has the fo...
by totta crolla
Fri Mar 15, 2024 3:44 am
Forum: TECH: 4A-GE ENGINE
Topic: Injector firing
Replies: 10
Views: 2758

Re: Injector firing

Sorry l should have said, l'm using a programmable ecu with the stock loom so l'm just trying to replicate what the stock ecu does.
l have no desire to go sequential.
by totta crolla
Fri Mar 15, 2024 2:44 am
Forum: TECH: 4A-GE ENGINE
Topic: Injector firing
Replies: 10
Views: 2758

Injector firing

Does anyone know how often the stock ecu fires the injectors?
Ideally in engine degrees (over 720°) or distributor teeth.
My distributor has 24 ne teeth at 30° and 4 cam? teeth at
180°
by totta crolla
Wed Jan 10, 2024 4:37 am
Forum: TECH: Corolla AE86
Topic: What gear oil to use in T50 and Diff?
Replies: 9
Views: 2993

Re: What gear oil to use in T50 and Diff?

yabaiani wrote:would AMS Oil 75W-90 in the transmission be good or no? or should i go with either Red Line MT 85 or AMSOIL 5W 30 manual synchromesh transmission fluid?

what are the pros and cons of either?


Did we just go around in a great big loop, wasn't this the original question?
by totta crolla
Mon Jan 08, 2024 1:33 pm
Forum: TECH: Corolla AE86
Topic: What gear oil to use in T50 and Diff?
Replies: 9
Views: 2993

Re: What gear oil to use in T50 and Diff?

Just wondered if there is an issue with mixing synthetic with mineral oils (however small the quantity) for these applications?
by totta crolla
Mon Jan 08, 2024 9:57 am
Forum: TECH: Corolla AE86
Topic: What gear oil to use in T50 and Diff?
Replies: 9
Views: 2993

Re: What gear oil to use in T50 and Diff?

Redline transformed the gear change in my T50 gearbox and l like Motul 90 PA for a TRD diff.
by totta crolla
Thu Dec 28, 2023 2:12 am
Forum: TECH: 4A-GE ENGINE
Topic: BT 20V TPS tuning
Replies: 5
Views: 1759

Re: BT 20V TPS tuning

What happens if you very slowly increase the power through the problem rpm area?
It may or may not be an acceleration correction problem.
by totta crolla
Sat Nov 18, 2023 1:38 am
Forum: TECH: Corolla AE86
Topic: Does anyone have a step by step guide to remove / install dash?
Replies: 6
Views: 4212

Re: Does anyone have a step by step guide to remove / install dash?

Sure it's a pita to remove/replace but that is only because Toyota do things right, the hidden stuff is done properly too.
I once navigated in a Peugeot 205gti and we had to retire as the dashboard literally fell off :lol:
by totta crolla
Tue Nov 14, 2023 10:25 am
Forum: TECH: 4A-GE ENGINE
Topic: I have a built 7A motor. Need some advice
Replies: 5
Views: 3073

Re: I have a built 7A motor. Need some advice

If the distributor has a pin holding the gear on, remove the pin and rotate the gear 180° on the distributor shaft
Re-fit distributor as normal.
Use a new roll pin to secure the gear.
by totta crolla
Tue Oct 24, 2023 11:01 am
Forum: TECH: 4A-GE ENGINE
Topic: 7AG build thread!
Replies: 13
Views: 15609

Re: 7AG build thread!

Really helpful advice for someone.
by totta crolla
Sat Oct 21, 2023 1:55 pm
Forum: TECH: Corolla AE86
Topic: Wanting to replace Kelford 193-C Camshafts
Replies: 13
Views: 16814

Re: Wanting to replace Kelforf 193-C Camshafts

I might be up for swapping a set of these for your Kelfords..
http://www.catcams.com/products/camshaf ... ge=english
by totta crolla
Sat Oct 21, 2023 8:47 am
Forum: TECH: Corolla AE86
Topic: Wanting to replace Kelford 193-C Camshafts
Replies: 13
Views: 16814

Re: Wanting to replace Kelforf 193-C Camshafts

I'd not expect those things to make too much difference. In a way it is the standard cam followers that cause the compromise as these effectively limit the cam lift potential, any perfomance cam then has to rely on long duration to get the job done, it is the long duration that can cause driveabilit...
by totta crolla
Fri Oct 20, 2023 9:46 am
Forum: TECH: Corolla AE86
Topic: Wanting to replace Kelford 193-C Camshafts
Replies: 13
Views: 16814

Re: Wanting to replace Kelforf 193-C Camshafts

Whilst l appreciate your post is about changing the cams it maybe possible to get closer to your requirements with careful tuning of camshafts and ecu. Having less overlap at TDC will help idle, retard inlet and advance exhaust cams to get less overlap. Cold and hot starts are all about ecu calibrat...
by totta crolla
Thu Sep 07, 2023 7:22 am
Forum: TECH: 4A-GE ENGINE
Topic: 20v Blacktop oil temperature high with cooler
Replies: 7
Views: 4118

Re: 20v Blacktop oil temperature high with cooler

If l remember correctly engine oil temps are based on engine rpm.. makes sense.. You are using higher cruising rpm's due to your lower FD so you would expect higher temperatures. Maybe you could try to lower coolant temperature or ideally fit a larger oil cooler. Heat exchangers, oil/water are appar...
by totta crolla
Sun Sep 03, 2023 3:34 am
Forum: TECH: 4A-GE ENGINE
Topic: igf revisited
Replies: 0
Views: 15962

igf revisited

So l can't decide if l discovered something here. Timing decided to return to 0° btdc (effectively no signal to ecu) at cold start up. Because of the camshafts l unplugged the cold start injector. Once the csi was re-plugged ignition returned to normal. The 0°btdc seemed random but now, thinking abo...
by totta crolla
Mon Jul 24, 2023 11:32 pm
Forum: TECH: Corolla AE86
Topic: Bleed screws
Replies: 1
Views: 2507

Bleed screws

Just a big shout out for these.
Expensive for a bleed screw but good value considering the engineering involved and the ease at which bleeding brakes becomes.
https://www.stahlbus.com/products/en/bl ... /index.php
by totta crolla
Fri Jun 30, 2023 2:17 am
Forum: TECH: Corolla AE86
Topic: Question on machining costs
Replies: 13
Views: 9206

Re: Question on machining costs

To be honest the only way l can see an issue with what they charged is if they didn't adhere reasonably closely to a written quote.
I don't know about the US but in the U.K there is a distinct legal difference between a quote and an estimate.
by totta crolla
Mon Jun 26, 2023 12:33 am
Forum: TECH: Corolla AE86
Topic: Question on machining costs
Replies: 13
Views: 9206

Re: Question on machining costs

5k$ does sound a lot for that work.
I'm in the U.K where this type of specialist work maybe less expensive, not sure.
I quoted Pounds Sterling but the exchange rate wouldn't make up that difference even if you allowed a 25% error
in actual cost.
by totta crolla
Wed Jun 21, 2023 12:44 am
Forum: TECH: Corolla AE86
Topic: Question on machining costs
Replies: 13
Views: 9206

Re: Question on machining costs

How much are they asking then?
by totta crolla
Tue Jun 20, 2023 12:17 am
Forum: TECH: Corolla AE86
Topic: Question on machining costs
Replies: 13
Views: 9206

Re: Question on machining costs

No.
Total should be around £2k
by totta crolla
Sun Jun 18, 2023 10:14 am
Forum: TECH: Corolla AE86
Topic: Question on machining costs
Replies: 13
Views: 9206

Re: Question on machining costs

Head work alone, if done properly would be around £1400
The rest would bring it up to about £2k
by totta crolla
Fri Apr 28, 2023 2:00 pm
Forum: TECH: Corolla AE86
Topic: more suspension issues
Replies: 6
Views: 17439

Re: more suspension issues

Ideally you want the inner balljoint ball centres to be the same distance apart as the AE86 rack.
l would hazard a guess that the balljoint centres are the same distance apart as the track control arm pivot bolt centres.
I might try to measure that sometime.
by totta crolla
Fri Apr 14, 2023 1:14 am
Forum: TECH: Corolla AE86
Topic: body harness, donor vehicle, and advice.
Replies: 5
Views: 5944

Re: body harness, donor vehicle, and advice.

Try always to use factory style crimps especially for repairs.
I use Male/Female narrow non-insulated bullet type connectors with heatshrink. Those 'orrid blue insulated squashy efforts are sent by the Devil!
Make sure any repair like this is taped into the loom for support.
by totta crolla
Wed Apr 12, 2023 12:05 am
Forum: TECH: 4A-GE ENGINE
Topic: Throttle body
Replies: 7
Views: 6318

Re: Throttle body

I'll use some smallport rocker covers that have had AN fittings fitted for breathers, this will free up the original breather inlet in the plenum. As it is a smallport inlet l have already modified the internal air passage to suit. I guess at idle the engine is not fussy about where it gets its air ...